Mercedes-Benz 240 D 1979 User manual

You ha e chosen to dri e a MERCEDES-BENZ, a car in whose
construction and production we ha e taken great pains because
we belie e that quality is not a m atter of chance.
Perhaps you ha e already had experience w ith a MERCEDES,
maybe this is your first car from the DAIMLER-BENZ company.
In both cases — for your own benefit — please read this owner's
manual before putting it away. E en though you ha e been dri ing
a car for 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 Aktiengesellschaft
3

Contents
This Owner's Manual also
describes optional extras as far as
an introduction on their handling
is required. /Is these extras need to
be ordered separately, the equip
ent of your vehicle ay deviate
fro the descriptions and illustra
tions to so e extent.
The last page
What you should know at the
gas station
Vehicle Operation
Instruments and Controls .... 8
Instrument Cluster ....................... 10
Keys, Doors ................................... 12
Master and Supplementary
Keys .......................................... 12
Opening, Locking and
Unlocking of Doors ................ 12
Master Lock System .............. 13
Seats .............................................. 14
Adjustment of Dri er's Seat
and Front Passenger Seat . . 14
Safety Headrest ....................... 15
Arm Rest (Rear Seat) ........... 15
Safety B elts .............................. 16
Controls ....................................... 18
Steering Lock ......................... 18
Idle Speed Adjuster ................ 18
Light Switch ............................ 19
Combination Switch .............. 20
Cruise Control ......................... 21
Various Equipment .................... 22
Interior Lights ........................ 22
Rear View Mirrors .................. 22
Sun V isor ................................... 23
Heated Rear Window ........... 23
Shelf below Rear Window . . 23
Electric Lighter ......................... 24
Sliding R oof .............................. 24
Electric Window Lifters .... 25
Heating and Ventilation 26
Air Conditioning System 28
Automatic Climate Control ... 30
Radio ............................................. 33
Driving
H ood ............................................ 38
Regular Inspections ................... 39
Parking Brake ............................ 40
Starting and Turning off the
Engine .......................................... 40
Starting and Shifting Gears ... 42
Manual Transmission 42
Automatic Transmission ... 42
Safe Dri ing .............................. 44
Brake Pad Wear Indicator . . 46
Brake Fluid .• .......................... 46
Charge Indicator L ig ht 46
Oil Pressure Gauge .............. 46
Coolant Temperature Gauge 46
Emission Control ................... 47
Dri ing Economically ................ 47
Fuel Consumption ................ 47
Engine Oil Consumption .... 47
The First 1,000 Miles
(1,500 k m ) ................................... 48
Special Operating Conditions . 48
Winter D ri ing........................ 48
Hints for Dri ing ................... 49
High Altitude Correction
D e ice ...................................... 49
Tire Chains ............................ 49
Tra elling Abroad ................ 49
4

Contents
Vehicle Care
MERCEDES-BENZ Main
tenance System ........................ 52
Se ere Operating
Conditions .............................. 52
Engine Oil Change and
Filter C hange .......................... 53
Automatic Transmission —
Fluid and Filter Change .... 53
Spare Parts Ser ice ................... 53
Cleaning and Care of the
Vehicle ........................................ 54
Jobs related to Care ............ 55
Practical Hints
Ash trays ..................................... 58
First Aid K it ................................. 58
Rear Seat Cushion ................... 59
Spare Wheel, Jack, Vehicle
Tool K it ........................................ 59
Luggage or Ski R acks .............. 59
Bleeding the Fuel System .... 60
Checking Fuels, Coolants,
Lubricants, etc ............................. 60
Engine Oil Le el Check .... 60
Replenishing Coolant 61
Fluid Le el — Automatic
Transmission .......................... 62
Wheels, Tires, Changing
Wheels ........................................ 63
Wheels, T ire s .......................... 63
Changing Wheels ................. 64
Tire Pressure .......................... 65
Electrical System ........................ 66
Replacing B ulbs ..................... 66
Fuses ........................................ 70
Battery ...................................... 70
Emergency Operation of
Sliding Roof ............................... 71
Unlocking of the Filler Flap .... 71
Emergency-starting and
Towing the V ehicle ................... 72
Turning off Engine Manually . . 73
echnical Data — Fuels,
Coolants, Lubricants, etc.
Identification Plates ................... 76
Vehicle Data Cards ................... 76
Technical Data .......................... 77
240 D ........................................ 77
300 D, 300 C D .......................... 79
Fuels, Coolants, Lubricants,
etc ................................................... 81
Capacities ............................... 81
Engine O ils ............................... 84
Brake Fluid ............................ 84
Diesel F uels ............................ 85
Coolants ................................. 86
Ser ice Literature ..................... 87
Vehicle Operation
Driving
Vehicle Care
Practical Hints
echnical Data — Fuels,
Coolants, Lubricants, etc.
5

Vehicle Operation

Instruments and Controls
For ore detailed descriptions see quoted pages.
1 Speaker grilles
2 Swi elling side entilation outlets (page 26)
3 Parking brake release knob (page 40)
4 Hood lock release handle (page 38)
5 Parking brake pedal (page 40)
6 Combination switch (page 20)
7 Light switch (page 19)
8 Cruise control (page 21)
9 Idle speed adjuster (page 18)
10 Instrument cluster (page 10)
11 Horn control
12 Steering lock (page 18)
Steering lock with preglow/starter switch
13 Swi elling outlets for nonheated fresh air
(page 26)
14 Le er for nonheated fresh air (page 26)
15 Switch for rear courtesy light
8
16 Switch for automatic antenna (page 35)
17 Air conditioner temperature switch (page 28)
18 Switch for electric sliding roof
(page 24)
19 Switch for heated rear window (page 23)
20 Air distribution le er (page 26)
21 Heater switch, left ehicle side (page 26)
22 Switch for air olume control and blower
(page 26)
23 Heater switch, right ehicle side (page 26)
24 Radio (page 33)
25 Ash tray with electric lighter (page 24, 58)
26 Speaker — fader control (page 34)
27 Switch group for window lifters (page 25)
28 Hazard warning flasher switch
Push switch = hazard warning flasher system
switched on
Push switch once more = hazard warning
flasher system switched off
29 Glo e compartment, illuminated
(only if steering lock is in position "1" or "2")
To open, mo e handle sideways

Instruments and Controls
9