hymer BMC 550 User manual

Instruction manual
© HYMER GmbH & Co. KG Bad Waldsee
2977937
Edition 12/18-2 englisch
B-MC
Instruction manual
Dear Customer,
We are pleased that you have chosen a motorhome from HYMER and would like to thank you for the trust
you have shown in our company.
This instruction manual is intended to help you get to know and use your new motorhome. It is essential
that you read and comply with the safety instructions in chapter 2.
Don't hesitate to contact our HYMER service centres if you have any questions. Their staffs are fully conver-
sant with your vehicle and will be pleased to help in any way they can. Our list of HYMER service centres in
Europe is updated regularly. You can obtain a copy of the latest edition from our customer service depart-
ment or from your HYMER dealer.
In addition to this instruction manual, you are also receiving from us
the service folder containing all information about the inspection intervals and the water ingress
tests,
the separate instruction manuals for the base vehicle and the various appliances.
We are sure that you will get a lot of enjoyment from your motorhome. Have a good trip!
You will also find HYMER GmbH & Co. KG on the Internet at: http://www.hymer.com.
Yours, HYMER GmbH & Co. KG

Instruction manual
2
B-MC - 12/18-2 - EHG-0016-01EN

Contents
B-MC - 12/18-2 - EHG-0016-01EN
3
Contents
1
Introduction ............................... 9
1.1General ................................................. 10
1.2Environmental tips ................................ 10
2
Safety ....................................... 13
2.1Fire prevention...................................... 13
2.1.1Avoidance of fire risks .......................... 13
2.1.2Fire-fighting........................................... 13
2.1.3In case of fire ........................................13
2.2General ................................................. 14
2.3Road safety .......................................... 15
2.4Towing .................................................. 16
2.5Gas system........................................... 16
2.5.1General instructions.............................. 16
2.5.2Gas bottles ........................................... 18
2.6Electrical system................................... 19
2.7Water system........................................ 19
3
Before the journey .................. 21
3.1Initial start-up ........................................ 21
3.2Payload................................................. 21
3.2.1Terms.................................................... 22
3.2.2Calculating the payload ........................ 24
3.2.3Loading the vehicle correctly................ 25
3.2.4Roof load .............................................. 27
3.2.5Rear garage/rear storage space .......... 28
3.2.6Bike rack ............................................... 29
3.3Towing .................................................. 30
3.4Caravan coupling.................................. 31
3.5Entrance steps...................................... 31
3.5.1Entrance step ....................................... 32
3.5.2Driver's door step.................................. 32
3.6Electrically heated windscreen ............. 32
3.7Multimedia system (Mercedes) ............ 33
3.8TV unit .................................................. 33
3.9Sink cover ............................................. 34
3.10Gas regulator........................................ 34
3.11Snow chains ......................................... 34
3.12Road safety .......................................... 35
4
During the journey .................. 37
4.1Driving the motorhome ......................... 37
4.2Breakdown assistance in the
event of vehicle-related
technical problems................................ 37
4.3Driving speed........................................ 38
4.4Air suspension ...................................... 39
4.5Brakes................................................... 40
4.6Seat belts.............................................. 40
4.6.1General ................................................. 40
4.6.2Fastening the seat belts correctly......... 40
4.7Child restraint systems ......................... 41
4.8Driver's seat and front
passenger's seat................................... 43
4.9Seat heater ........................................... 44
4.10Headrests (bench) ................................ 44
4.11Attachable seat..................................... 45
4.12Additional seat ...................................... 46
4.13Seating arrangement............................ 47
4.14Electrical window winder ...................... 47
4.15Electrically adjustable and
heatable external mirrors...................... 48
4.16Roman shades for driver's window
and front passenger's window.............. 48
4.17Curtain shades for driver's window,
windscreen, and front
passenger's window ............................. 48
4.18Rear view camera / waste water
tank camera.......................................... 49
4.19Bonnet .................................................. 50
4.20Filling with windscreen washer fluid ..... 51
4.21Checking the oil level ........................... 51
4.22Refuelling.............................................. 52
4.23Ad-Blue®............................................... 52
4.24Towing .................................................. 53
5
Pitching the Motorcaravan..... 55
5.1Handbrake ............................................ 55
5.2Entrance step ....................................... 55
5.3Ramps .................................................. 55
5.4Wheel chock ......................................... 55
5.5Rear area lighting ................................. 55
5.6Supports ............................................... 56
5.6.1General instructions ............................. 56
5.6.2Steady legs........................................... 56
5.7Hydraulic steady legs ........................... 57
5.8230 V connection.................................. 60
5.9Refrigerator........................................... 60
5.10Awning.................................................. 61
6
Living ....................................... 63
6.1Doors .................................................... 63
6.1.1Central locking system ......................... 63
6.1.2Conversion door, outside ..................... 64
6.1.3Conversion door, inside........................ 64
6.1.4Driver's door, conversion door,
outside .................................................. 65
6.1.5Driver's door, conversion door,
inside .................................................... 65
6.1.6Garage door with central
locking system ...................................... 66
6.1.7Insect screen on the conversion
door, extendable................................... 67
6.2External flaps........................................ 67
6.2.1Flap lock, elliptical-shaped ................... 68
6.3Ventilation............................................. 68
6.4Windows ............................................... 69
6.4.1Front passenger's window.................... 70
6.4.2Hinged window with
automatic hinges .................................. 70
6.4.3Sunroof with rotary hinges.................... 72
6.4.4Roman shade and insect screen.......... 73

Contents
4
B-MC - 12/18-2 - EHG-0016-01EN
6.4.5Roman shades for driver's window
and front passenger's window .............. 74
6.4.6Roman shade for windscreen,
driver's window and front
passenger's window ............................. 74
6.5Skylights ............................................... 74
6.5.1Hinged skylight ..................................... 75
6.5.2Wind-up skylight ................................... 77
6.5.3Skylight with fan.................................... 78
6.6Rotating seats....................................... 79
6.7Storage spaces..................................... 79
6.7.1Storage compartment in
double floor........................................... 80
6.8Multifunctional sideboard...................... 81
6.9Tables ................................................... 81
6.9.1Lift-off table with release button ...........81
6.9.2Table with pillar table leg...................... 82
6.9.3Suspension table with separable
support leg............................................ 83
6.9.4Folding worktop .................................... 83
6.10TV unit .................................................. 84
6.10.1Satellite unit with automatic
antenna alignment ................................ 86
6.11Lighting ................................................. 88
6.11.1Lamps in driver's cabin......................... 88
6.11.2Lamps with two operating levels .......... 88
6.12Beds...................................................... 89
6.12.1Pull-down bed, mechanically
operated ............................................... 89
6.12.2Rear bed (if a flat screen is fitted
(special equipment)) ............................. 90
6.12.3Pull-down bed, electrically operated..... 91
6.12.4Queen size bed in the rear,
mechanically height-adjustable ............ 93
6.12.5Protective panel / fall out protection ..... 94
6.12.6Width extension of rear bed ................. 95
6.12.7Lying surface extension of rear
single bed ............................................. 96
6.12.8Conversion of L-seating group and
individual seat into additional bed ........ 97
6.12.9Conversion of divan and individual
seat into additional bed......................... 98
7
Gas system.............................. 99
7.1General instructions.............................. 99
7.2Gas bottles ......................................... 100
7.3Gas isolator taps................................. 101
7.4External gas connection ..................... 102
7.5Gas bottle compartment pull-out ........ 103
7.6Gas bottle compartment ..................... 104
7.7Gas pressure regulating system
DuoControl CS ................................... 104
7.8Gas filter ............................................. 107
7.9Changing gas bottles.......................... 108
8
Electrical system................... 109
8.1General safety instructions................. 109
8.2Terms ................................................. 109
8.312 V power supply.............................. 110
8.3.1USB and 12 V sockets ....................... 110
8.3.2Radio power supply
selector switch.................................... 111
8.3.3Bluetooth connection.......................... 111
8.3.4Starter battery..................................... 113
8.3.5Living area battery.............................. 114
8.3.6Energy balance of the
living area battery ............................... 117
8.3.7Installation of AC converter ................ 119
8.4HYMER Smart Battery System .......... 119
8.4.1Display panel...................................... 121
8.5Transformer/rectifier (EBL 30)............ 122
8.5.1Battery cut-off switch .......................... 124
8.5.2Battery selector switch ....................... 124
8.5.3Battery monitor ................................... 124
8.5.4Charging the battery........................... 124
8.5.5Retrofitting additional 12 V
appliances .......................................... 125
8.6Panel (LT 94)...................................... 125
8.6.1Switching the 12 V power supply
on/off................................................... 126
8.6.2Battery voltage display ....................... 126
8.6.3Displaying the tank level..................... 127
8.6.4Alarms ................................................ 128
8.7AC converter (MSI 1812T) ................. 129
8.8230 V power supply............................ 132
8.8.1230 V connection
(CEE socket outlet) ............................ 132
8.8.2Connecting the
230 V power supply............................ 132
8.9Fuses.................................................. 134
8.9.112 V fuses........................................... 134
8.9.2Positions of fuses ............................... 134
8.9.3230 V fuse .......................................... 137
8.10Circuit diagrams ................................. 138
8.10.1Block diagram 230 V .......................... 138
8.10.2Block diagram 12 V ............................ 138
9
Appliances............................. 141
9.1General............................................... 141
9.2Heater and boiler................................ 141
9.2.1To heat properly ................................. 142
9.2.2Hot-air heater and boiler with CP
plus digital operating unit.................... 143
9.2.3Alde hot-water heater and boiler ........ 148
9.2.4Rear garage hot-water heater ............ 155
9.2.5Wall flue.............................................. 156
9.3Truma Aventa air conditioning unit..... 156
9.3.1Operation and display on the unit ...... 158
9.4Controlling Truma appliances with
mobile terminal
(special equipment) ............................ 160

Contents
B-MC - 12/18-2 - EHG-0016-01EN
5
9.5Cooker ................................................ 161
9.5.1Gas cooker ......................................... 162
9.5.2Cooker with gas grill and gas oven ....164
9.6Refrigerator.........................................167
9.6.1Refrigerator ventilation grill................. 167
9.6.2Thetford N3000 E/A............................168
9.6.3Refrigerator door locking
mechanism ......................................... 171
10
Sanitary fittings..................... 173
10.1Water supply, general.........................173
10.2Water system......................................174
10.2.1Water tank ..........................................174
10.2.2Filling the water system...................... 174
10.2.3Topping up the water.......................... 176
10.2.4Reducing the water quantity for
mobile operation .................................177
10.2.5Draining water (safety drainage
rotary handle) .....................................177
10.2.6Emptying the water system ................177
10.3Waste water tank................................178
10.4Toilet compartment.............................180
10.5Toilet ...................................................181
10.5.1Swivel toilet......................................... 181
10.5.2Toilet with fixed seat ........................... 182
10.5.3Emptying the sewage tank ................. 183
10.5.4Electrical ventilation system ............... 184
10.5.5Winter operation .................................184
10.5.6Temporary lay-up ...............................184
10.6Installation positions ...........................185
11
Care........................................ 187
11.1External care ...................................... 187
11.1.1General............................................... 187
11.1.2Washing with a
high-pressure cleaner.........................187
11.1.3Washing the vehicle ...........................187
11.1.4Windows of acrylic glass .................... 188
11.1.5Add-on parts made of glass-fibre
reinforced plastic (GRP) ..................... 188
11.1.6Underbody ..........................................189
11.1.7Engine compartment ..........................189
11.1.8Windscreen washer system and
windscreen wipers .............................. 190
11.1.9Air conditioning unit ............................190
11.1.10Entrance step .....................................191
11.2Interior care ........................................ 191
11.3Kitchen installation.............................. 192
11.3.1General notes on care ........................ 192
11.3.2Refrigerator.........................................193
11.4Stainless steel surfaces......................193
11.5Cushions............................................. 194
11.6Water system......................................195
11.6.1Cleaning the water tank...................... 195
11.6.2Cleaning the water pipes .................... 196
11.6.3Disinfecting the water system.............197
11.6.4Cleaning the waste water tank ........... 197
11.7Skylight with fan.................................. 197
11.8Winter care ......................................... 198
11.9Lay-up................................................. 198
11.9.1Temporary lay-up ............................... 198
11.9.2Winter lay-up ...................................... 200
11.9.3Starting up the vehicle after a
temporary lay-up or after lay-up
over winter .......................................... 201
12
Customer service
and maintenance................... 203
12.1Official inspections ............................. 203
12.2Inspection work................................... 203
12.3Maintenance work .............................. 204
12.4Lubricating the rear axle..................... 204
12.5Changing gas filter ............................. 204
12.6Alde hot-water heater ......................... 205
12.6.1Changing the heating fluid.................. 205
12.6.2Checking the fluid level ...................... 205
12.6.3Topping up heating fluid ..................... 206
12.6.4Bleeding the heating system .............. 206
12.7Cooker/oven/refrigerator .................... 207
12.7.1Refrigerator......................................... 207
12.8Changing windscreen blade ............... 207
12.9Replacing bulbs, external ................... 208
12.9.1Front lights.......................................... 209
12.9.2Rear lights .......................................... 211
12.9.3Side lights ........................................... 212
12.9.4Types of bulbs for exterior lighting ..... 213
12.10Lighting for living area ........................ 213
12.11Air suspension.................................... 214
12.12Electrical ventilation system ............... 214
12.13Spare parts ......................................... 214
12.14Vehicle identification plate.................. 215
12.15Vehicle identification plate
on the chassis..................................... 215
12.16Warning and information stickers....... 216
12.17Dealers ............................................... 216
12.18Replacement keys .............................. 216
13
Wheels and tyres .................. 217
13.1General............................................... 217
13.2Tyre selection ..................................... 218
13.3Tyre specifications.............................. 219
13.4Handling of tyres ................................ 219
13.5Changing wheels................................ 219
13.5.1General instructions ........................... 219
13.5.2Tightening torque ............................... 220
13.5.3Changing a wheel............................... 221
13.5.4Changing a wheel with
alloy wheel rims.................................. 221
13.6Spare wheel support .......................... 222
13.7Tyre pressure ..................................... 222

Contents
6
B-MC - 12/18-2 - EHG-0016-01EN
14
Troubleshooting.................... 225
14.1Braking system ................................... 225
14.2Air suspension .................................... 225
14.3Skylight ............................................... 225
14.4Electrical system................................. 225
14.5AC converter....................................... 228
14.6Gas system......................................... 229
14.7Cooker ................................................ 229
14.8Heater/boiler ....................................... 230
14.8.1Heater/boiler with CP plus digital
operating unit...................................... 230
14.8.2Alde heater/boiler ............................... 231
14.9Air conditioning unit ............................ 232
14.10Refrigerator......................................... 232
14.10.1General............................................... 232
14.11Water supply ...................................... 234
14.12Body ................................................... 236
15
Special equipment ................ 237
15.1Weight details for
special equipment .............................. 237
16
Technical data....................... 239
16.1Technical data .................................... 239
16.2Dimensions and permissible
number of persons ............................. 239
17
Instructions for
the service partner................ 241

Checklist before first journey of the vehicle
B-MC - 12/18-2 - EHG-0016-01EN
7
Checklist before first jour ney of the vehicle
Observe the following instructions before first journey
of the vehicle:
Re-tighten the wheel nuts/wheel bolts after 50 km (30 miles).
Read the instruction manual to avoid personal and material dam-
age.
Observe the following instructions before each
journey of the vehicle:
Check the tyre pressures.
See Tyre pressure section.
Load the vehicle correctly. Observe the maximum permissible
gross weight.
See Payload section.
Fully charge batteries before each journey.
See Starter battery and Living area battery sections.
In case of external temperatures below 0 °C first heat vehicle,
then fill water system.
See Water supply/Filling the water tank section.
Gas bottles are only to be transported within the designated gas
bottle compartment.
Keep forced ventilations clear.
See Skylights and Ventilation sections.
Before filling the vehicle with fuel switch off gas-operated appli-
ances.
If there is any risk of frost, observe the following
instructions:
If there is any risk of frost, always heat the vehicle.
See Heater section.
If the vehicle is not being used when there is risk of frost, empty
the entire water system. Make sure that the 12 V power supply on
the panel is switched off. Otherwise, the water pump will over-
heat and may get damaged. Leave the water taps on in central
position. Leave all drain cocks open. This will avoid frost damage
to appliances and to the vehicle.
See Emptying the water system section.

Checklist before first journey of the vehicle
8
B-MC - 12/18-2 - EHG-0016-01EN

Introduction 1
B-MC - 12/18-2 - EHG-0016-01EN
9
1 Introduction
Please read this instruction manual completely before
using the vehicle for the first time!
Always keep this instruction manual in the vehicle. Also inform all other us-
ers of the safety regulations.
The non-observance of this symbol can lead to personal injury.
The non-observance of this symbol can lead to damage being caused
to, or inside the vehicle.
This symbol indicates recommendations or special aspects.
This symbol indicates actions which lead to environmental awareness.
This instruction manual contains sections which describe model-spe-
cific equipment or special equipment. These sections are not specially
marked. It may be that your vehicle has not been fitted with this special
equipment. In some cases, the actual equipment of your vehicle may
therefore be different from that shown in some illustrations and de-
scriptions.
However, your vehicle may be fitted with other special equipment not de-
scribed in this instruction manual.
Special equipment is described when an explanation is required.
Adhere to the instruction manuals which are separately enclosed.
The details "right", "left", "front" and "rear" always refer to the vehicle in
direction of travel.
All dimensions and weight details are "approximate".
Should the vehicle be subjected to damage due to a failure to follow the in-
structions in this instruction manual, then the warranty claim is deemed inva-
lid.
Our vehicles are subjected to continuous development. Please understand
that we reserve the right to alter the form, equipment and technology. There-
fore, no claims can be made against the manufacturer as a result of the con-
tents of this instruction manual. The equipment which was known and in-
cluded at the time of going to press is described.
The reprinting, translation and copying, including extracts is not permitted
without prior written authorisation from the manufacturer.

1 Introduction
10
B-MC - 12/18-2 - EHG-0016-01EN
1.1 General
The vehicle is constructed in accordance with the latest technology and the
recognised safety regulations. Nevertheless, personal injury may result and
the vehicle may be damaged if the safety instructions in this instruction man-
ual are not followed.
Before using the vehicle for the first time, equip it with the legally prescribed
equipment (e.g. first aid kit, warning vest, hazard warning triangle etc.). Ob-
serve the relevant equipment regulations when travelling abroad.
Only use the vehicle in a technically impeccable condition. Follow the in-
structions in the instruction manual.
Malfunctions which impair the safety of persons or the vehicle should be im-
mediately remedied by qualified personnel. To avoid further damages, ob-
serve the duty to avert, minimise or mitigate loss for the user during faults.
Have the vehicle's braking and gas systems inspected and repaired by an
authorised specialist workshop only.
Alterations to the body are only to be carried out with the authorisation of the
manufacturer.
The vehicle is designed for the exclusive transport of persons. Luggage and
accessories may only be transported up to the maximum permissible gross
weight.
Observe the test and inspection periods stipulated by the manufacturer.
1.2 Environmental tips
Be considerate of the environment.
Remember that: All kinds of waste water and household waste are not to
be disposed of in drains or in the open countryside.
On board, collect waste water only in the waste water tank or – if neces-
sary – in other containers designed for that purpose.
Only empty the waste water tank and sewage tank at disposal stations,
camping sites or caravan sites especially provided for this purpose.
When stopping in towns and communities, observe the instructions at
caravan sites or ask where there are disposal stations.
Empty waste water tank as often as possible, even when it is not com-
pletely full (hygiene).
If possible, flush out waste water tank and, if necessary, drainage pipe
with fresh water every time it is emptied.
Never allow the sewage tank to become too full. Empty the sewage tank
frequently, at the latest as soon as the filling level indicator lights up.
Separate household waste according to glass, tin cans, plastic and wet
waste also when on a journey. Enquire at the town or community author-
ity about disposal points. Household waste is not to be disposed of in
waste paper baskets which are situated at car parks.
Empty waste bins as often as possible into the containers provided for
this purpose. This helps to avoid unpleasant smells and an accumulation
of rubbish on board.
When parked, do not allow the engine to run more than necessary.
When running idle, a cold engine releases more contaminants than
usual. The running temperature of the engine is achieved more quickly
whilst the vehicle is in motion.

Introduction 1
B-MC - 12/18-2 - EHG-0016-01EN
11
Use an environmentally-friendly WC chemical agent for the WC which
can also be biologically degraded and only use small doses.
When staying in towns and communities for long periods, search for
parking areas which are specially reserved for motorhomes. Enquire at
the town or community authority about parking spaces.
Always leave the parking places in a clean condition.

1 Introduction
12
B-MC - 12/18-2 - EHG-0016-01EN

Safety 2
B-MC - 12/18-2 - EHG-0016-01EN
13
2 Safety
Chapter overview
This chapter contains important safety instructions. The safety instructions
are for the protection of persons and property.
2.1 Fire prevention
2.1.1 Avoidance of fire risks
Never leave children in the vehicle unattended.
Keep flammable materials clear of heating and cooking appliances.
Never use portable heating or cooking appliances.
Only authorised qualified personnel may make changes to the electri-
cal system, gas system or appliances.
2.1.2 Fire-fighting
Always carry a dry powder fire extinguisher in the vehicle. The fire ex-
tinguisher must be approved, tested and close at hand.
Have the fire extinguisher tested at regular intervals by authorised
qualified personnel. Observe the date of testing.
Always keep a fire blanket near the cooker.
2.1.3 In case of fire
Evacuate all passengers.
Cut off the electrical power supply and disconnect from the mains.
Close regulator tap on the gas bottle.
Sound the alarm and call the fire brigade.
Fight the fire if this is possible without risk.
Acquaint yourself with the position and operation of the emergency exits.
Keep escape routes clear.
Observe the fire extinguisher instructions for use.

2 Safety
14
B-MC - 12/18-2 - EHG-0016-01EN
2.2 General
Do not fix any objects to the double floor of the vehicle. Do not drill
any holes into the double floor nor perform any other interventions.
Such activities change the statics of the vehicle and may endanger its
safety. All warranty obligations will lapse in the event of an infringe-
ment.
The oxygen in the vehicle interior is used up by breathing and the use
of gas operated appliances. That is why the used air must be replaced
permanently. For this purpose, forced ventilation options (e.g. sky-
lights with forced ventilation, mushroom-shaped vents or floor vents)
are fitted to the vehicle. Never cover or block forced ventilations from
the inside or outside with objects such as e.g. a winter mat. Keep
forced ventilations clear of snow and leaves. There is a danger of suf-
focation due to increased CO2levels.
Do not use storage spaces or rear garages as places for people or an-
imals to stay or sleep in. These spaces are not forced-air ventilated.
There is a danger of suffocation due to oxygen deprivation or exhaust
from the heater.
Observe the headroom of the doors.
As far as the fitted appliances (heater, cooker, refrigerator, etc.) and the
base vehicle (engine, brakes, etc.) are concerned, the instruction manu-
als are authoritative. It is imperative that they be observed.
Fitting accessories or special equipment can alter the dimensions,
weight and road behaviour of the vehicle. Some of the add-on parts
must be entered in the vehicle documents.
Only use wheel rims and tyres which are approved for the vehicle. Infor-
mation concerning the size of the approved wheel rims and tyres is in-
cluded in the vehicle documents or can be obtained from authorised
dealers and service centres.
Firmly apply the handbrake when parking the vehicle.
If the maximum permissible gross weight of the vehicle exceeds
4 tonnes, a wheel chock must be used when parking on gradients. The
wheel chock is provided as standard for vehicles with a maximum per-
missible gross weight exceeding 4 tonnes.
When leaving the vehicle, it is imperative that all doors, external flaps
and windows are closed.
Always carry the legally prescribed equipment (e.g. first aid kit, warning
vest, hazard warning triangle etc.) with you. The regulations of the host
country apply when travelling abroad.
The vehicle may only be driven by drivers who hold a driving licence
which is valid for the respective vehicle class.
When selling the vehicle, hand over all instruction manuals for the vehi-
cle and the fitted appliances.

Safety 2
B-MC - 12/18-2 - EHG-0016-01EN
15
2.3 Road safety
Before commencing the journey, carry out a functional check of indi-
cating and lighting equipment, the steering and the brakes.
If the vehicle has been stationary for a long period (approx.
10 months) have the braking and gas systems checked by an author-
ised specialist workshop.
Before commencing the journey and after short interruptions of the
journey, ensure that the entrance step is completely retracted.
Before commencing the journey, secure the pull-down bed.
Before commencing the journey, open, lock and secure the shades
situated on the windscreen and on the driver's and front passenger's
windows.
Before commencing the journey, rotate all swivel seats in the direction
of travel and lock in position. During the journey, the swivel seats must
remain locked in place in the direction of travel.
Carefully store all moving parts and all loose objects before starting
your journey.
Before commencing the journey, secure the television.
Before commencing the journey, remove the loose sink cover (if pre-
sent) and store it securely in the kitchen unit or wardrobe.
During the journey, persons are only to sit on the permitted seats (see
chapter 4). The authorised number of seats is stipulated in the vehicle
documents.
Seat belts must be worn by all passengers.
Fasten your seat belts before the beginning of the journey and keep
them fastened during the journey.
When travelling, secure children under 13 years of age that are
smaller than 150 cm, with a suitable and officially approved child re-
straint system.
Only attach the child restraint system to seats that are specified for
this purpose. We strongly recommend to install child restraint systems
preferably in the second row of seats.
Never use rearward-facing child restraints on a seat with activated
front airbag. This may lead to death or to serious injuries in chil-
dren.
The base vehicle is a commercial vehicle (small truck). Adjust your
driving technique accordingly.
In case of underpasses, tunnels or similar obstacles, note the total
height of the vehicle (including the roof load).
In winter, the roof must be free of snow and ice before commencing
the journey.
Check tyre pressure before a journey or every 2 weeks. Wrong tyre
pressure causes excessive wear and can lead to damage or even to
tyre burst. You can lose control of the vehicle (see section 13.7).
Do not operate the heater at petrol stations. Danger of explosion!
Do not operate the heater in closed spaces. Danger of suffocation!

2 Safety
16
B-MC - 12/18-2 - EHG-0016-01EN
Before commencing the journey, distribute the payload evenly within the
vehicle (see chapter 3).
When loading the vehicle and when taking a rest from driving, in order to
load luggage or food, for example, observe the maximum permissible
gross weight and axle loads (refer to vehicle documents).
Before commencing the journey, close and lock, if possible, all inner
doors, adjustable partition walls, drawers and flaps. Engage the refri-
gerator door securing device.
Before commencing the journey, close windows and skylights.
Before commencing the journey, close all external flaps and lock them.
Before commencing the journey, remove the external supports and re-
tract the corner steadies or steady legs, which are fitted to the vehicle.
Before commencing the journey, put the antenna in park position.
During the initial journey and each time after changing a wheel, re-
tighten the wheel bolts/wheel nuts after 50 km (30 miles). Subsequently
inspect them at regular intervals in order to ensure that they are firmly
seated. See chapter 13 for tightening torque.
Tyres must not be older than 6 years as the material becomes brittle
over time (see chapter 13).
When using snow chains, the tyres, wheel suspension and steering are
subjected to an additional load. When using snow chains, drive slowly
(maximum speed 50 km/h) and only on streets which are completely
covered with snow. Otherwise the vehicle could be damaged.
2.4 Towing
Care is to be taken when connecting and detaching a trailer. Risk of
accident and injury!
No persons are to be between the motorhome and the trailer during
positioning for connecting and detaching.
2.5 Gas system
2.5.1 General instructions
The operator of the gas system is responsible for the performance of
recurring inspections and for complying with the maintenance inter-
vals.
If there is no MonoControl or DuoControl regulating system with crash
sensor installed: Before commencing the journey, when leaving the
vehicle or when the gas devices are not in use, close all gas isolator
taps and the main regulator tap on the gas bottle.
If there is a MonoControl or DuoControl regulating system with crash
sensor installed, the gas isolator taps and the main regulator tap may
remain open during the journey.
All gas-operated devices (heater, cooker, oven, grill, refrigerator - de-
pending on the equipment) must be switched off for refuelling, on fer-
ries or in the garage. Danger of explosion!
Do not use gas-operated devices in closed spaces (e.g. garages).
Danger of poisoning and suffocation!

Safety 2
B-MC - 12/18-2 - EHG-0016-01EN
17
Only have the gas system maintained, repaired or altered by an au-
thorised specialist workshop.
Have the gas system checked by an authorised specialist workshop
according to the national regulations before commissioning. This also
applies for not registered vehicles. For modifications to the gas sys-
tem have the gas system immediately checked by an authorised spe-
cialist workshop.
The gas pressure regulator, the gas tubes, and the exhaust gas pipes
must also be inspected. The gas pressure regulator and the gas tubes
must be replaced observing the nationally defined deadlines (the lat-
est after 10 years). The vehicle owner is responsible for seeing that
this is carried out.
In case of a defect of the gas system (gas odour, high gas consump-
tion) there is danger of explosion! Close regulator tap on the gas bot-
tle immediately. Open doors and windows and ventilate well.
If the gas system is defective: Do not smoke; do not ignite any open
flames, and do not operate electric switches (light switches etc.).
Check the tightness of gas-conducting parts and lines with leakage
search spray. Do not check with an open flame.
Only the stipulated devices may be connected to internal connections.
Do not operate any device outside the vehicle if it is connected to an
internal connector.
Before using the cooker make sure that there is sufficient ventilation.
Open a window or the skylight.
Cooking is prohibited during the journey.
Do not use gas-operated cooking and baking facilities for heating pur-
poses.
If there are several gas devices, each gas device must have its own
gas isolator tap. If individual gas devices are not in use, close the re-
spective gas isolator tap.
Ignition safety valves must close within 1 minute after the gas flame
has extinguished. A clicking sound is audible. Check function from
time to time.
The built-in gas devices are exclusively meant for use with propane or
butane gas or a mixture of both. The gas pressure regulator as well as
all built-in gas devices are designed for a gas pressure of 30 mbar.
Propane gas is capable of gasification up to -42 °C, whereas butane
gas gasifies at 0 °C. Below these temperatures no gas pressure is
available. Butane gas is unsuitable for use in winter.
Due to its function and construction, the gas bottle compartment is a
space which is open to the exterior. Never cover or block up the
standard forced ventilations. Otherwise gas that is emitted can not be
diverted to the outside.
The gas bottle compartment must not be used as storage space.
Secure the gas bottle compartment against unauthorised access. To
do this, lock the compartment.
The regulator tap on the gas bottle must be accessible.
Only connect gas-operated devices which have been designed for a
gas pressure of 30 mbar.

2 Safety
18
B-MC - 12/18-2 - EHG-0016-01EN
The exhaust gas pipe must be fitted tightly to the heating system and
to the vent and must be sealed. The exhaust gas pipe must not show
any evidence of damage.
Exhaust fumes must be able to escape into the atmosphere unhin-
dered and fresh air must be able to enter unhindered. For this reason,
keep the exhaust pipe and intake openings clean and unobstructed
(e.g. free from snow and ice). For this reason, no snow walls or
aprons may lie against the vehicle.
2.5.2 Gas bottles
Handle full or emptied gas bottles outside the vehicle only with closed
regulator tap and attached protective cap.
Gas bottles are only to be transported within the designated gas bottle
compartment.
Place the gas bottles in vertical position in the gas bottle compart-
ment.
Fasten the gas bottles so that they are unable to turn or tilt.
Connect the gas tube to the gas bottle without tension.
If the gas bottles are not connected to the gas tube, always place the
protective cap on top.
Close the regulator tap on the gas bottle before the gas pressure reg-
ulator or gas tube are removed from the gas bottle.
Depending on the connection, unscrew the gas tube from the gas bot-
tle and screw it on the gas bottle again by hand or using an suitable
special spanner. The screw connection on the gas bottle generally
has a left-hand thread. Do not tighten too firmly.
Only use special gas pressure regulators with a safety valve designed
for vehicle use. Other gas pressure regulators are not permitted and
cannot meet the demanding requirements.
Use the gas pressure regulator defroster if the temperature falls below
5 °C.
Use only 11 kg or 5 kg gas bottles. Camping gas bottles with built-in
check valve (blue bottle with max. 2.5 or 3 kg content) are can be
used in exceptional cases with a safety valve.
Use the shortest possible tube lengths (150 cm max.) for external gas
bottles.
Never block the floor ventilation openings below the gas bottles.

Safety 2
B-MC - 12/18-2 - EHG-0016-01EN
19
2.6 Electrical system
Only allow qualified personnel to work on the electrical system.
Prior to carrying out work on the electrical system, switch off all de-
vices and lights, disconnect the battery and disconnect the vehicle
from the mains.
Only use original fuses with the stipulated values.
Only replace defective fuses when the cause of the defect is known
and has been remedied.
Never bridge or repair fuses.
2.7 Water system
Water left standing in the water tank or in the water pipes becomes
undrinkable after a short period. Therefore, before each use of the ve-
hicle, thoroughly clean the water pipes and the water tank. After each
use of the vehicle completely empty the water tank and the water
pipes.
In the case of lay-ups lasting more than a week disinfect the water
system before using the vehicle (see chapter 11).
If the vehicle is not used for several days or if it is not heated when there
is a risk of frost, empty the entire water system. Make sure that the 12 V
power supply on the panel is switched off. Otherwise, the water pump
will overheat and may get damaged. Leave the water taps on in central
position. Leave all drain cocks open. Frost damage to appliances, frost
damage to the vehicle and deposits in water-carrying components can
be avoided in this way.

2 Safety
20
B-MC - 12/18-2 - EHG-0016-01EN
This manual suits for next models
4
Table of contents
Other hymer Motorhome manuals
Popular Motorhome manuals by other brands

Thor Motor Coach
Thor Motor Coach CLASS B owner's manual

Roadmaster
Roadmaster Even Brake Programming instructions

Airstream
Airstream 2023 INTERSTATE 24X owner's manual

Winnebago
Winnebago Vita 2020 manual

Tiffin Motorhomes
Tiffin Motorhomes Wayfarer TM 2021 Series owner's manual

Fleetwood
Fleetwood 1974 Southwind owner's manual