Mercedes-Benz 240 D 1980 User manual

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.

Owner’s
Manual 240 D
300 D
300 CD
Type 123 D
1980
Mercedes-Benz

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 m atter of chance.
Perhaps you have already had experience w ith a MERCEDES,
maybe this is your first car from the DAIM LER-BENZ company.
In both cases — for your own benefit — please read this owner's
manual before putting it away. Even though you have been driving
a car for years, some things in this car may be new to you, and this
manual certainly contains a few hints w hich will help you to make
the m ost of your new car.
W e wish you safe and pleasant m otoring.
DAIM LER-BENZ Aktiengesellschaft
3

Contents
This Owner's Manual also
describes optional extras as far as
an introduction on their handling
is required. As these extras need to
be ordered separately, the equip
ment of your vehicle may deviate
from the descriptions and illustra
tions to some extent.
The last page
What you should know at the
gas station
Vehicle Operation
Instruments and Controls .... 8
Instrument Cluster ....................... 10
Keys, D oors ................................... 12
Master and Supplementary
Keys .......................................... 12
Opening, Locking and
Unlocking of D o o rs ................ 12
Master Lock System .............. 13
Seats ............................................... 14
Adjustment of Driver'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 A djuster .............. 18
Lighting S w itc h ..................... 19
Combination Switch .............. 20
Cruise Control ......................... 21
Various Equipment ..................... 22
Interior Lam ps ......................... 22
Outside Rear View Mirror . . 22
Inside RearView Mirror .... 22
Sun V isor ................................... 23
Heated Rear Window ........... 23
Shelf below Rear Window . . 23
Electric Lighter ........................ 24
Sliding R oof ............................ 24
Electric W indow Lifters .... 25
Heating and Ventilation 26
Air Conditioning S ystem 28
Automatic Climate Control .. . 30
Radio ............................................. 33
Driving
H oo d ............................................. 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 Driving .............................. 44
Brake Pad Wear Indicator
Lam p ........................................ 46
Brake Fluid ............................ 46
Charge Indicator Lamp .... 46
Oil Pressure Gauge .............. 46
Coolant Temperature Gauge 46
Emission Control ................... 47
Driving Economically ................ 47
Recommended shift points
for manual transmission .... 47
Engine Oil Consumption .. . 47
The First 1500 km/1000 Miles . 48
Special Operating Conditions . 48
Winter D riving ........................ 48
Hints for Driving ................... 49
High Altitude Correction
D evice ...................................... 49
Tire Chains ............................ 49
Traveling A bro a d ................... 49
4

Vehicle Care
MERCEDES-BENZ Main
tenance System ........................ 52
Severe Operating
Conditions .............................. 52
Engine Oil Change and
Filter C hange .......................... 53
Automatic Transmission —
Fluid and Filter Change .... 53
Spare Parts Service ................... 53
Cleaning and Care of the
Vehicle ........................................ 54
Jobs related to Care ............ 55
Practical Hints
Ash trays ...................................... 58
Rear Seat Cushion ................... 58
Bleeding the Fuel System .... 59
Turning off Engine Manually . . 59
First Aid K it ................................. 60
Luggage or Ski R acks .............. 60
Spare Wheel, Jack, Vehicle
Tool K it ........................................ 60
Wheels, Tires, Changing
Wheels ........................................ 61
Wheels, T ires .......................... 61
Changing Wheels ................ 62
Tire Pressure .......................... 63
Checking Fuels, Coolants,
Lubricants, etc ............................. 64
Engine Oil Level Check . .
Replenishing Coolant
Fluid Level — Automatic
Transmission .....................
Electrical System ...................
Fuses ...................................
Battery .................................
Replacing B ulbs ................
Emergency Operation of
Sliding Roof ..........................
Unlocking of the Filler Flap .
Emergency-starting and
Towing the V e hicle ..............
Jump S tarting ........................
Technical Data — Fuels,
Coolants, Lubricants, etc.
Identification Plates ..............
Vehicle Data Cards ..............
Technical Data .....................
240 D ...................................
300 D, 300 C D .....................
Fuels, Coolants, Lubricants,
etc ..............................................
Capacities ..........................
Engine O ils ..........................
Brake Fluid ........................
Diesel F ue ls ........................
Coolants ............................
Service Literature ................
Contents
64
65
66
67
67
67
68
72
72
73
74
76
77
78
Vehicle Operation
Driving
Vehicle Care
78 Practical Hints
82
82
85
85 Technical Data — Fuels,
86 Coolants, Lubricants, etc.
87
88
5

Vehicle Operation

For more detailed descriptions see quoted pages.
A 1 Speaker grilles
2 Swivelling side ventilation outlets (page 30)
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 Lighting switch (page 19)
8 Idle speed adjuster (page 18)
g Cruise control (page 21)
10 Instrument cluster (page 10)
11 Horn control
12 Steering lock (page 18)
Steering lock with preglow/starter switch
13 Swivelling outlets for cold air (page 30)
14 Switch for rear courtesy lamp
Instruments and Controls
8
15 Switch for automatic antenna (page 35)
16 Switch for electric sliding roof (page 24)
17 Switch for heated rear window (page 23)
18 Automatic climate control (page 30)
19 Radio (page 33)
20 Ash tray with electric lighter (page 24, 58)
21 Speaker — fader control (page 34)
22 Switch group for window lifters (page 25)
23 Hazard warning flasher switch
Push switch = hazard warning flasher system
switched on
Push switch once more = hazard warning
flasher system switched off
24 Glove compartment, illuminated
(only if steering lock is in position " 1" or "2")
To open, move handle sideways