Mercedes-Benz 300 SD Turbo Diesel 1982 User manual

Mercedes-Benz

Drive Sensibly — Save Fuel
Fuel consumption depends to a great
extent on driving habits and operating
conditions
In order to save fuel you should:
• ensure that tire pressures are
correct
• not carry unnecessary loads
• remove ski racks or roof-mounted
luggage racks when not in use
• not warm up your engine at idle
and with the vehicle at standstill
• avoid frequent acceleration and
deceleration
• avoid frequent braking
• avoid unnecessarily high speeds
• have all the maintenance jobs
specified by us carried out at
regular intervals by a
MERCEDES-BENZ service station
Driving in low temperature weather, in
stop-and-go city traffic and on short
hops, and in hilly country as well,
increases fuel consumption

300SD-
HJRBO DIESEL
Type 126 D
1982

You have chosen to drive a MERCEDES-BENZ, a car in whose construction
and production we have taken great pains because we believe that quality is
not a matter of chance
Perhaps you have already had experience with a MERCEDES, maybe this is
your first car from the DAIMLER-BENZ company In both cases — for your
own benefit — please read this ow ner’s manual before putting it away Even
though you have been driving a car fo r years, some things in this car may be
new to you, and this manual certainly contains a few hints which will help you
to make the m ost of your new car
We wish you safe and pleasant m otoring
DAIMLER-BENZ A ktiengesellschaft
3

This Owner’s Manual also describes
optional extras as far as this is
required for their operation.
As the scope of delivery is deter
ined by the order, the equip ent of
your vehicle ay deviate fro the
descriptions and illustrations to so e
extent.
Vehicle Operation
Instruments and Controls
Instrument Cluster
Keys, D oors
Master Key and
Supplementary Key
Flat Key
Obtaining Replacement
Keys
Opening, Locking and
Unlocking of Doors
Master Lock System
Seats
Electrical Adjustment of
Driver’s and Front
Passenger’s Seats
Safety Headrests
Orthopaedic Seat Back
Arm Rest (Front Seats)
Arm Rest (Rear Seat)
Seat Heater
Seat Belts
The last page
What you should know at the gas
station
Contents
C ontrols 22
Steering Lock 22
Lighting Switch 23
12 Combination Switch 24
14 Cruise C ontrol 25
Automatic Climate C ontrol 26
I4 Various Equipment 31
' Exterior M irrors 31
Inside Rear View M irror 31
4 Sun Visors 32
Sliding R o o f 32
It? Interior Lam ps 33
Heated Rear Window 33
16 Electric Lighter 34
Shelf below Rear Window 34
Electric Window Lifters 34
16 R adio 35
18
18
19
19
20
5

Contents
Driving
H ood 42
Regular Inspections 43
Parking Brake 44
Starting and Turning
off the Engine 44
Starting and Shifting Gears 46
Safe Driving 48
Brake Pad Wear Indicator
Lamp 50
Brake Fluid 50
Charge Indicator Lam p 50
Oil Pressure Gauge 50
Coolant Temperature Gauge 50
Emission C ontrol 51
Engine Oil Consumption 51
The First 1500 km/1000 Miles 51
Special Operating Conditions 52
Winter Driving 52
Hints for Driving 52
High Altitude Correction
Device 53
Tire Chains 53
Traveling A broad 53
Vehicle Care
MERCEDES-BENZ Maintenance
S yste m
Severe Operating Conditions
Engine Oil Change and Filter
Change
Automatic Transmission —
Fluid and Filter Change
Spare Parts Service
Cleaning and Care of the Vehicle
Jobs related to C a re
Practical Hints
Ash trays 62
56 Rear Seat Cushion 62
5® Bleeding the Fuel System 63
5 7 Turning off Engine Manually 63
First Aid Kit 64
57 Luggage or Ski Racks 64
57 Spare Wheel, Jack,
5 8 Vehicle Tool Kit 64
59 Wheels, Tires, Changing Wheels 65
Wheels, T ires 65
Changing Wheels 66
Tire Inflation Pressure 67
6

Contents
Checking Fuels, Coolants,
Lubricants, etc 68
Engine Oil Level Check 68
Checking Coolant Level 69
Replenishing Coolant 69
Fluid Level —
Automatic Transmission 70
Electrical System 71
Fuses 71
Battery 71
Replacing Bulbs 72
Windshield W ipers 75
Emergency Operation of
Sliding R o o f 75
Unlocking the Fuel Filler Flap 75
Jump Starting 76
Tow-starting and Towing
the Vehicle 76
Technical Data, Fuels, Coolants,
Lubricants, etc.
Identification Plates 80
Vehicle Data Cards 81
Warranty C overage 81
Technical D ata 82
Fuels, Coolants, Lubricants, etc 84
Capacities 84
Engine O ils 86
Brake Fluid 86
Diesel F ue ls 87
Coolants 88
Service Literature 89
Vehicle Operation
Driving
Vehicle Care
Practical Hints
Technical Data, Fuels,
Coolants, Lubricants, etc.
7

Vehicle Operation

Instruments and Controls
I For ore detailed descriptions see quoted pages.
B 1 Speaker grilles
V 2 Side ventilation outlets (page 26)
3 Swivelling outlets for nonheated fresh air (page 26)
4 Parking brake release handle (page 44)
5 Handle to disengage hood lock (page 42)
6 Parking brake pedal (page 44)
7 Combination switch (page 24)
8 Lighting switch (page 23)
9 Cruise control (page 25)
10 Instrument cluster (page 12)
11 Horn control
12 Steering lock (page 22)
Steering lock with preglow/starter switch
13 Lever for nonheated fresh air (page 26)
10
14 Switch for rear passenger compartment lamp
(page 33)
15 Switch for electric sliding roof (page 32)
16 Switch for hazard warning flasher system
17 Switch for automatic antenna (page 40)
18 Switch for heated rear window (page 33)
19 Automatic climate control (page 26)
20 Radio (page 35)
21 Ash tray with lighter (page 34,62)
22 Switch for left front seat heater (page 19)
23 Loudspeaker — fader control
24 Switch for right front seat heater (page 19)
25 Switch group for window lifters (page 34)
26 Adjusting lever for exterior mirror on front
passenger side (page 31)
27 Glove compartment, illuminated (only in steering
lock positions “ 1” or “ 2” )

Instru ents and Controls
11

Instrument Cluster
1 Coolant temperature gauge (°C)
I Up to red marking: Maximum permissible
l i temperature for an antifreeze-blended fill protecting
down to - 30° C/ - 22° F See page 50
2 Fuel gauge with reserve warning lamp (yellow)
Fuel reserve and capacity, refer to page 85 and last
page
3 Oil pressure gauge (bar) See page 50
4 Turn signal indicator lamp, left (green)
5 Main odometer
6 Trip odometer
7 Turn signal indicator lamp, right (green)
8 Tachometer
9 Electric clock
10 Knob for clock adjustment
(press in for adjustments)
11 Seat belt warning lamp (red)
12
12 Preglow indicator lamp (yellow)
13 Brake warning lamp (red) comes on if
• the parking brake is engaged
• not enough brake fluid is in the reservoir
14 Brake pad wear indicator lamp (yellow):
Lights up during braking if the front wheel brake pads
are worn down See page 50
15 Charge indicator lamp (red):
Comes on when the steering lock key is moved to
driving position “ 2” and must go out when the
engine is idling See page 50
16 High beam indicator lamp (blue)
17 Knob for instrument lamps and trip odometer
Rotate knob: instrument lamps intensity are
infinitely variable
Depress knob: trip odometer is turned back
Note
A stop is provided on the speedometer at the
138 km/h/85 mph reading Speeds in excess of
138 km/h/85 mph will not be indicated

instru ent Cluster
13

Keys Doors
>
9393
The flat key fits all vehicle
locks We recommend that
you carry the flat key with
you and keep it in a safe
place so that it is always
handy, if needed (e g in
compartment and trunk with the y°ur wallet) Never leave the flat key in
master key the vehicle
Master Key — square head — fits all Flat Key
locks on the car
Supple entary Key— rounded head
— fits only the door locks and the
steering lock This key is intended to
be used whenever the car is left with
an attendant Be sure to lock glove
Obtaining Replace ent Keys
You are handed over 4 keys together
with your vehicle Replacement keys
can be obtained only via
MERCEDES-BENZ service stations If
the keys are lost, assistance is rather
time consuming and expensive
14

Keys Doors
9517
4
Opening the Doors
From outside: pull handle outwards (1)
From inside: pull handle in door trim
panel (4)
Locking and Unlocking of Doors
From the outside: turn key
From the inside: actuate plunger
2 Unlocking
3 Locking
When the rear door plungers are
pushed down, the rear doors cannot
be opened from the outside or the
inside They can be opened after
pulling plungers up
One cannot lock:
• the driver’s door if it is open
• any door if the door lock has not
engaged fully In this case open
the door and close it again
15

Keys Doors Seats
Master Lock Syste
The master lock system locks or
unlocks the driver’s door, the other
vehicle doors, the fuel tank filler flap
and the trunk lid simultaneously The
lock plungers of the other vehicle
doors must then move together with
the lock plunger of the driver’s door
If this does not happen, the lock of
the respective door is not properly
engaged Open the door again and
shut it correctly
The front passenger door and the rear
doors can also be locked or unlocked
individually from inside The front
passenger door can also be locked
and unlocked with the key
With the master lock system in the
locked position, the trunk lid can also
be unlocked individually: To do so,
turn the main key to the left as far as it
will go, then depress the trunk lid lock
push button with the key and open
the trunk Turn the key to its initial
position and withdraw it To lock the
trunk lid, close it firmly; the trunk lid
will then be locked by the master lock
system again
The trunk lid can also be locked
independently (for instance, to leave
the vehicle in a workshop) without
actuating the master lock system
Turn the main key to the right as far as
it will go and withdraw it In this case
the trunk lid can only be unlocked
with the main key which must be
inserted and turned back to the left
Note:
If the fuel tank filler flap cannot be
opened, refer to “ Unlocking the Fuel
Filler Flap” (page 75)
Electrical Adjust ent of Driver's and
Front Passenger’s Seats
Turn key in steering lock to
position “ 2”
Seat and seat back can be adjusted
individually by means of the switches
These are accommodated in the front
doors
When the key is withdrawn or turned
to steering lock positions “ 1 ” or “ 0” ,
seat and seat back can be adjusted
only if the driver's door is open
16

Seats
Note:
Prior to operating the vehicle, the
driver should adjust the seat height
for proper vision as well as fore-aft
placement and seat back angle to
insure adequate control, reach, oper
ation, and comfort The headrest
should also be adjusted for proper
height so that when the cushion is
tipped completely forward, it should
form a cradle behind the seat
occupant's head Both the inside and
outside rear view mirrors should then
be adjusted for adequate rearward
vision Fasten seat belts Children
under the age of six or under the
weight of 23 kg/50 lb should be
seated in the back seat with an
approved restraint system properly
secured
All seat, headrest, and rearview
mirror adjustments as well as fasten
ing of seat belts should be accom
plished before the vehicle is put into
motion
Detaching headrests:
Pull headrest out to the stop Release
arrester by depressing release knob
to be felt under the seat back
covering material and pull headrest
upward quickly, holding it by the LH
headrest post (viewed in driving
direction) Then pull out headrest
completely with both hands
The headrest release knob is located
below the LH headrest post (2)
Safety headrests, rear
Height adjustment:
Raise or lower headrest as required
Detaching headrests:
Pull up headrest until resistance can
be felt Then pull it out quickly using
both hands
Safety Headrests
Adjust headrest to support the back
of the head approximately at ear level
Safety headrests, front
Height adjustment:
Press headrest slightly forward (1)
and reset upward or downward as
required
17

Seats
(2
(1
Orthopaedic Seat Back
Turn handwheel (1) to adjust the
spinal support The spinal support
must not be inflated when being
adjusted A red mark in window (2)
indicates the height it is adjusted to
To inflate the spinal support, actuate
hand pump (3) as required For
deflation, push button (4)
Ar Rest (Front Seats)
The arm rest engages in 3 positions
Position 1 = arm rest folded up
Position 2 = for normally inclined
seat back
Position 3 = for extremely inclined
seat back
For downward adjustment of the arm
rest, depress release button (4)
Note:
The arm rest does not suffice as a
child restraint system In case of a
frontal collision a child can be
catapulted forward over the locked
arm rest It is only suitable as
protection against objects which
might be hurled forward when the
vehicle is decelerated
18