Mercedes-Benz 300 CD 1978 User manual

Mercedes-Benz

IG

Owner’s
Manual 240 D
300 D
300CD
Type 123 D
78
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 DAIMLER-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 which will help you to make
the most 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. /4s these extras need to
be ordered separately, the equip
ent o f 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 D o o rs .............. 12
Master Lock System ............ 13
Seats ............................................. 14
Front Seat Adjustment .... 14
Safety Headrest ..................... 15
Arm Rest (Rear Seat) ......... 15
Safety B elts ............................ 16
Controls ..................................... 18
Steering Lock ........................ 18
Idle Speed A djuster .............. 18
Light Switch .......................... 1
Combination Switch ............ 20
Cruise Control ........................ 21
Various Equipment ................... 22
Interior Lights ........................ 22
Rear View Mirrors ................. 22
Sun Visor ................................. 23
Heated Rear Window .......... 23
Shelf below Rear Window . . 23
Electric Lighter ........................ 24
Sliding R oo f ............................ 24
Electric Window Lifters .... 25
Heating and Ventilation 26
Air Conditioning System 28
Automatic Climate Control ... 30
Radio ............................................. 33
Driving
H oo d ............................................. 38
Regular Inspections ................... 3
Parking Brake ............................ 40
Starting and Turning off the
Engine .......................................... 40
Starting and Shifting Gears ... 42
Mechanical Transmission . . . 42
Automatic Transmission . . . 42
Safe Driving .............................. 45
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
Driving Economically ................ 47
Fuel Consumption ................ 47
Engine Oil Consumption .... 47
The First 1,000 Miles
(1,500 k m ) ................................... 47
Special Operating Conditions . 48
Winter D riving........................ 48
High Altitude Correction
D evice ...................................... 48
Travelling Abroad ................ 48
4

Vehicle Care
MERCEDES-BENZ Main
tenance System ........................ 50
Severe Operating
Conditions .............................. 50
Engine Oil Change and
Filter Change .......................... 51
Automatic Transmission —
Fluid and Filter Change .... 51
Spare Parts Service ................... 51
Cleaning and Care of the
Vehicle ........................................ 52
Jobs related to Care ............ 53
Practical Hints
Ash trays ..................................... 56
First Aid K it ................................. 56
Rear Seat Cushion ................... 57
Tool K it ........................................ 57
Luggage or Ski R acks .............. 57
Bleeding the Fuel System .... 58
Checking Fuels, Coolants,
Lubricants, etc ............................. 58
Engine Oil Level Check .... 58
Replenishing Coolant 5
Fluid Level — Automatic
Transmission .......................... 60
Wheels, Tires, Changing
Wheels ........................................ 61
Wheels, T ire s .....................
Changing Wheels ............
Tire Pressure .....................
Electrical System ...................
Replacing B ulbs ................
Fuses ...................................
Battery .................................
Emergency Operation of
Sliding Roof ..........................
Unlocking of the Filler Flap . .
Emergency-starting and
Towing the V ehicle ..............
Turning off Engine Manually
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 u els........................
Coolants ............................
Service Literature ................
Contents
Vehicle Operation
61
62
63
64
64
68
68
6 Driving
6
70
71
Vehicle Care
74
74
75
75
77 Practical Hints
7
7
82
8 2 Technical Data — Fuels,
8 3 Coolants, Lubricants, etc.
84
85
5

Vehicle Operation

Instruments and Controls
For ore detailed descriptions see quoted pages.
1Speaker grilles
2Swivelling side ventilation outlets (page 26)
3Parking brake release knob (page 40)
4Hood lock release handle (page 38)
5Parking brake pedal (page 40)
6Combination switch (page 20)
7Light switch (page 1 )
8Cruise control (page 21)
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 Swivelling outlets for nonheated fresh air
(page 26)
14 Lever for nonheated fresh air (page 26)
15 Switch for rear courtesy light
16 Switch for automatic antenna (page 35)
17 Air conditioner temperature switch (page 28)
18 Control of electrically operated sliding roof
(page 24)
1 Switch for heated rear window (page 23)
20 Air distribution lever (page 26)
21 Heater switch, left vehicle side (page 26)
22 Switch for air volume control and blower
(page 26)
23 Heater switch, right vehicle side (page 26)
24 Radio (page 33)
25 Ash tray with electric lighter (page 24, 56)
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
2 Glove compartment, illuminated
(only if steering lock is in position "1" or "2")
To open, move handle sideways