Page 231 of 290
228 Towing the vehicle
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Note:
To signal turns while being towed with hazard warning
flasher in use, turn key in steering lock to position 2 and
activate combination switch for left or right turn signal
in usual manner – only the selected turn signal will
operate. Upon canceling the turn signal, the hazard
warning flasher will operate again.Caution!
If the vehicle is towed with the front axle raised, the
engine must be shut off (key in steering lock position 0
or 1). Otherwise, the ESP will immediately be engaged
and will apply the rear wheel brakes. Switch off the
tow-away alarm as well as the automatic central locking,
see page 37 and page 31.
Page 247 of 290
244 Antenna
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Notes:
Do not open engine hood with wiper arms folded
forward.
Do not allow the wiper arms to contact the windshield
glass without a wiper blade inserted. The glass may be
scratched or broken.
Make certain that the wiper blade is properly installed.
An improperly installed wiper blade may cause
windshield damage.
Antenna
To prevent damage or diminished radio reception after
reinstallation, the non-retractable antenna should not
be removed. The antenna is automatic car-wash safe.Manual release of fuel filler flap
The manual release knob is located behind cover (1) in
the right slide trunk panel.
In case the central locking system does not release the
fuel filler flap, pull the manual release knob (arrow)
while simultaneously opening the fuel filler flap.
1
P80.20-2110-26
Page 248 of 290

245 Contents - Vehicle care
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex
Vehicle careCleaning and care of
the vehicle ..................................246
Power washer ..............................247
Paintwork, painted body
components .................................247
Tar stains .....................................247
Engine cleaning ..........................248
Vehicle washing .........................248
Headlamps, taillamps,
turn signal lenses ......................249
Window cleaning ........................249Rear window cleaning .............. 249
Wiper blades .............................. 250
Light alloy wheels ..................... 250
Instrument cluster ..................... 251
Steering wheel and
gear selector lever ..................... 251
Cup holder .................................. 251
Hard plastic trim items ............. 251
Plastic and rubber parts ........... 251
Headliner and
shelf behind roll bars ................ 252
Upholstery .................................. 252
Seat belts ..................................... 252
Page 251 of 290

248 Cleaning and care of the vehicle
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex
Engine cleaning
Prior to cleaning the engine compartment make sure to
protect electrical components and connectors from the
intrusion of water and cleaning agents.
Corrosion protection, such as MB Anticorrosion Wax
should be applied to the engine compartment after
every engine cleaning. Before applying, all control
linkage bushings and joints should be lubricated. The
poly-V-belt and all pulleys should be protected from any
wax.Ve h i c l e w a s h i n g
Do not use hot water or wash your vehicle in direct
sunlight. Use only a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo.
Thoroughly spray the vehicle with a diffused jet of
water. Direct only a very weak spray towards the
ventilation intake. Use plenty of water and rinse the
sponge and chamois frequently.
Rinse with clear water and thoroughly wipe dry with a
chamois. Do not allow cleaning agents to dry on the
finish.
Due to the width of the vehicle, prior to running the
vehicle through an automatic car wash, fold back the
outside mirrors to prevent them from getting damaged.
In the winter, thoroughly remove all traces of road salt
as soon as possible.
When washing the underbody, do not forget to clean the
inner sides of the wheels.
Page 256 of 290
253 Contents - Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Technical dataSpare parts service ........................254
Warranty coverage .........................254
Identification labels .......................255
Layout of poly-V-belt drive ............257
Technical data ................................260
Fuels, coolants,
lubricants etc. – capacities ......266Engine oils ...................................... 268
Engine oil additives ...................... 268
Air conditioner refrigerant .......... 268
Brake fluid ...................................... 268
Premium unleaded gasoline ........ 269
Fuel requirements ........................ 269
Gasoline additives ......................... 270
Coolants .......................................... 270
Consumer information ................. 272
Page 258 of 290
255 Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Identification labels
1Certification Label and Paintwork No.2Vehicle Identification No. (VIN)
3Engine No.
1P63.20-2446-26
P62.10-2022-263
2
Page 259 of 290
256 Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
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4VIN, visible (lower edge of windshield)
5Emission control label
6Information Label California version
Vacuum line routing for emission control system
When ordering spare parts, please specify vehicle
identification and engine number.
Page 260 of 290
257 Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Layout of poly-V-belt drive
SLK 230 Kompressor
routing, belt I
The engine is equipped with two poly-V-belts.
1Crankshaft
2Air conditioner compressor
3Power steering pump
4Coolant pumpSLK 230 Kompressor
routing, belt II
For dimensions of the poly-V-belts, see page 260.
5Idler pulley
6Generator (alternator)
7Idler pulley
8Idler pulley
9Supercharger
P13.20-2007-26
9
6
8
7
4
1
5
32
5
32
9
6
8
4
1
7
P13.20-2008-26