2001 MERCEDES-BENZ CLK320 coolant

4 Contents
Malfunction and indicator lamps in
the center console .....................230
AIRBAG OFF
indicator lamp .............................230
Malfunction and warning
messages in the
multifunction display ............... 231
DISPLAY DEFECTIVE
(engine control unit) ..................232
DISPLAY DEFECTIVE
(several systems) ........................232
BATTERY/ALTERNATOR ...........233
ABS-SYSTEM ...............................234
BRAKE ASSIST ...........................234
BRAKE LINING WEAR ..............235
BRAKE FLUID .............................235PARKING BRAKE ....................... 236
ENGINE FAN ............................... 236
COOLANT
(coolant level) ............................. 237
COOLANT TEMP.
(coolant temperature) ............... 238
LIGHTING SYSTEM ................... 239
LIGHT SENSOR .......................... 240
STEER. WHEEL ADJUST. .......... 240
ENGINE OIL LEVEL ................... 241
ELEC. STABIL. PROG.
(Electronic stability
program) ..................................... 242
REMOVE KEY ............................. 242
WASHER FLUID ......................... 243
TELE AID ..................................... 244
Practical hintsFirst aid kit .....................................246
Shelf below rear window ..............246
Stowing things in the vehicle ......246
Fuses ................................................247
Hood .................................................249
Checking engine
oil level ....................................... 251
Automatic transmission
fluid level ...................................252
Coolant level ...................................252
Adding coolant ...........................253
Windshield washer/headlamp
cleaning system ........................254
Windshield and
headlamp washer
fluid mixing ratio .......................254

6 Contents
Technical dataSpare parts service ........................296
Warranty coverage .........................296
Identification labels .......................297
Layout of poly-V-belt drive ............298
Technical data ................................299
Fuels, coolants, lubricants etc. –
capacities ...................................302Engine oil additives ...................... 303
Engine oils ...................................... 303
Air conditioner refrigerant .......... 303
Brake fluid ...................................... 303
Premium unleaded gasoline ........ 304
Fuel requirements ........................ 304
Gasoline additives ......................... 305
Coolants .......................................... 305
Consumer information ................. 307
IndexIndex ................................................309

13 IntroductionWhere to find it
The Operator’s Manual is divided into eight sections:
• Instruments and controls: An overview of all the controls that can be operated from the driver’s seat.
•Operation: Information on the vehicle’s equipment and its operation.
•Driving: Important information on driving.
• Instrument cluster display: Displays and indicator lamps on the instrument cluster with brief instructions.
• Practical hints: Assistance and instructions in the event of an emergency.
•Car care: Instructions on caring for your vehicle.
• Technical data: All the important technical data for your vehicle as well as consumer information such as fuels,
coolants, lubricants etc. is contained here.
•Index: Key terms to help you find a topic quickly.
Other documents may also be supplied, depending on your vehicle’s equipment.
Explanation of color used:
Warning notices for the protection of yourself and
others appear on red background.

83 Instrument cluster
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Push buttons V and W for intensity of
instrument lamps, see page 85
2Push button J for resetting trip odometer, see
page 87, or to acknowledge a malfunction or
warning message, see page 87
3Coolant temperature gauge, see page 86
4Fuel gauge with reserve and fuel cap placement
warning lamp, see page 228
5Outside temperature indicator, see page 86
6Left turn signal indicator lamp, see combination
switch on page 117
7ESP warning lamp, see page 2298Speedometer
9Trip odometer, see page 87
10Main odometer
11Multifunction indicator, see page 231
or FSS indicator, see page 109
or engine oil level indicator, see page 112
12Right turn signal indicator lamp, see combination
switch on page 117
13Tachometer, see page 87
14Gear range indicator display, see selector lever
positions on page 194
15Clock, see page 106

86 Instrument cluster
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Coolant temperature gauge (3)
During severe operating conditions and stop-and-go city
traffic, the coolant temperature may rise close to the red
marking.
The engine should not be operated with the coolant
temperature in the red zone. Doing so may cause
serious engine damage which is not covered by the
Mercedes-Benz Limited Warranty.Outside temperature indicator (5)
The temperature sensor is located in the front bumper
area. Due to its location, the sensor can be affected by
road or engine heat during idling or slow driving. This
means that the accuracy of the displayed temperature
can only be verified by comparison to a thermometer
placed next to the sensor, not by comparison to external
displays (e.g. bank signs etc.).
Adaptation to ambient temperature takes place in steps
and depends on the prevailing driving conditions (stop-
and-go or moderate, constant driving) and amount of
temperature change.
Wa r n i n g !
• Driving when your engine is badly overheated
can cause some fluids which may have leaked
into the engine compartment to catch fire. You
could be seriously burned.• Steam from an overheated engine can cause
serious burns and can occur just by opening
the engine hood. Stay away from the engine if
you see or hear steam coming from it.Turn off the engine, get out of the vehicle and do
not stand near the vehicle until it cools down.
Wa r n i n g !
The outside temperature indicator is not designed
to serve as an Ice-Warning Device and is therefore
unsuitable for that purpose. Indicated
temperatures just above the freezing point do not
guarantee that the road surface is free of ice.

208 Driving instructions
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Winter driving
Have your vehicle winterized at your authorized
Mercedes-Benz Center before the onset of winter.
•Change the engine oil if the engine contains an oil
which is not approved for winter operation. For
viscosity (SAE/CCMC class) and filling quantity, see
page 302.
•Check engine coolant anticorrosion/antifreeze
concentration.
•Additive for the windshield washer and headlamp
cleaning system: Add MB Concentrate “S” to a
premixed windshield washer solvent/antifreeze
which is formulated for below freezing temperatures
see page 254.
•Test battery: Battery capacity drops with decreasing
ambient temperature. A well charged battery helps
to ensure that the engine can be started, even at low
ambient temperatures.
•Tires: We recommend M+S rated radial-ply tires on
all four wheels for the winter season. Observe
permissible maximum speed for M+S rated
radial-ply tires and the legal speed limit.Note:
In winter operation, the maximum effectiveness of the
antilock brake system (ABS) or of the electronic stability
program (ESP) can only be achieved with M+S rated
radial-ply tires and/or snow chains recommended by
Mercedes-Benz. Snow chains maximize performance.
For driving instructions with snow chains see page 206.
Deep water
Caution!
Do not drive through flooded areas or water of unknown
depth.
If you must drive through deep water, drive slowly to
prevent water from entering the engine compartment or
passenger compartment, being ingested by the air
intake, possibly causing damage to electrical
components or wiring, to engine or transmission that is
not covered by the Mercedes-Benz Limited Warranty.

222 What you should know at the gas station
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Fuel tank capacity approx. 16.4 US gal (62.0 l).
This includes approx. 2.1 US gal (8.0 l) reserve. Use
premium unleaded gasoline: Posted Octane Index 91
(Average of 96 RON/86 MON).
•Engine oil
Engine oil level check, see page 112 and page 251.
Fill quantity between upper and lower dipstick
marking level: 2.1 US qt (2.0 l).
Recommended engine oils, see Approved Service
Products sheet.
• Coolant
For normal replenishing, use water (potable water
quality).
For further information (e.g. anticorrosion/
antifreeze), see page 302.
• Spark plugs
Approved spark plugs, see page 300.
• Tire pressure
For tire pressure, refer to tire pressure label inside
the fuel filler flap. See page 265 for further details.• Air conditioner
R-134a refrigerant and special PAG lubricant, see
page 302.
•Bulbs
High and low beams: H7 (55 W),
low beam: Xenon (optional)
fog lamps: H1 (55 W),
turn signal lamps,
front 1156 NA (26.9/5 W/32/4 cp),
parking and standing lamps, front: H 6W (6 W),
side marker lamps, front: 5 W/4 cp,
turn signal lamps, rear: 21 W/24 cp,
stop, tail, parking and side marker lamps: 21/4 W,
tail and parking lamp: 5 W/4 cp,
rear fog lamp, driver’s side: 21 W/32 cp,
backup lamps: 21 W/32 cp,
license plate lamps: 5 W/4 cp.

223 Check regularly and before a long trip
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Check regularly and before a long trip 1Engine oil level
See “Checking engine oil level” on page 112 and
page 251.
2Coolant level
See “Coolant level” on page 252.
3Brake fluid
See “Brake fluid” on page 303.
4Windshield washer system
Headlamp cleaning system
For refilling reservoir see page 254.
Opening hood, see page 249.
Ve h i c l e l i g h t i n g : Check function and cleanliness. For
replacement of light bulbs, see “Exterior lamps” on
page 273.
Exterior lamp switch, see page 114.