
Operation Audio and telephone 125 The first 1 000 miles (1 500 km) 171 Travelling abroad 200
Power windows 143 Maintenance 171 Cruise control 201
Interior lighting 146 Catalytic converter 172 Brake assist system (BAS) 204
Entrance lamps, exit lamps in doors 146 Emission control 173 Antilock brake system (ABS) 206
Sun visors 147 Tele Aid 174
Electronic stability program (ESP)
208
Illuminated vanity mirrors 147 Steering lock 180 What you should know at the
Interior 148 Starting and turning off the engine 182 gas station 211
Storage compartments, armrest and
cup holder148 Automatic transmission 183 Check regularly and before a
long trip 213
Glove box 148 Parking brake 192
Ashtray 150 Driving instructions 192
Instrument cluster display
Lighter 151 Drive sensibly – save fuel 192 Malfunction and indicator
lamps in the instrument cluster 216
Cargo tie down rings 152 Drinking and driving 193 On-board diagnostic system
Parcel net in front passenger footwell 152 Pedals 193 Check engine malfunction
indicator lamp 216
Armrest, rear bench 152 Power assistance 193 Supplemental restraint system
(SRS) indicator lamp 218
Telephone, general 153 Brakes 193 Fuel reserve and fuel cap
Cellular telephone 153 Driving off 194 placement warning 218
Garage door opener 154 Parking 195 Electronic stability
program(ESP) — warning lamp 219
Soft top 158 Tires 195
BAS/ESP malfunction indicator
lamp
219
Wind screen 165 Snow chains 198
ABS malfunction indicator lamp
219
Winter driving instructions 198 Telescoping steering column –
indicator lamp220
DrivingDeep water 199 Seat belt warning lamp 220
Control and operation of radio transmitters
170 Passenger compartment 200
4

Driving
Parking 195
Tires 195
Control and operation of radio transmitters
170 Snow chains 198
The first 1 000 miles (1 500 km) 171 Winter driving instructions 198
Maintenance 171 Deep water 199
Catalytic converter 172 Passenger compartment 200
Emission control 173 Travelling abroad 200
Tele Aid 174 Cruise control 201
Steering lock 180 Brake assist system (BAS) 204
Starting and turning off the engine 182 Antilock brake system (ABS) 206
Automatic transmission 183
Electronic stability program (ESP)
208
Parking brake 192 What you should know at the gas station 211
Driving instructions 192 Check regularly and before a long trip 213
Drive sensibly – save fuel 192
Drinking and driving 193
Pedals 193
Power assistance 193
Brakes 193
Driving off 194
169

Driving instructions
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Snow chains
Use only snow chains that are tested and recommended
by Mercedes-Benz. Your authorized Mercedes-Benz
Center will be glad to advise you on this subject.
Chains should only be used on the rear wheels. Follow
the manufacturer’s mounting instructions.
Snow chains should only be driven on snow covered
roads at speeds not to exceed 30 mph (50 km/h).
Remove chains as soon as possible when driving on
roads without snow.
When driving with snow chains, press the ESP control
switch to OFF, refer to page209.
Wa r n i n g !
If the vehicle becomes stuck in snow, make sure
that snow is kept clear of the exhaust pipe and
from around the vehicle with engine running.
Otherwise, deadly carbon monoxide (CO) gases may
enter vehicle interior resulting in unconsciousness
and death.To assure sufficient fresh air ventilation, open a
window slightly on the side of the vehicle not
facing the wind. Winter driving instructions
The most important rule for slippery or icy roads is to
drive sensibly and to avoid abrupt acceleration, braking
and steering maneuvers. Do not use the cruise control
system under such conditions.
When the vehicle is in danger of skidding, move
selector lever to position “N”. Try to keep the vehicle
under control by corrective steering action.Road salts and chemicals can adversely affect braking
efficiency. Increased pedal force may become necessary
to produce the normal brake effect. We therefore
recommend depressing the brake pedal periodically
when traveling at length on salt-strewn roads. This can
bring road salt impaired braking efficiency back to
normal. A prerequisite is, however, that this be done
without endangering other drivers on the road. If the vehicle is parked after being driven on salt treated
roads, the braking efficiency should be tested as soon as
possible after driving is resumed while observing the
safety rules in the previous paragraph.
198

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
page307.
•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 page249.
•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.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 page198.
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.
199

Driving systems
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Driving the vehicle with varied size tires will cause the
wheels to rotate at different speeds, therefore the ESP
may activate (yellow ESP warning lamp in speedometer
dial comes on). For this reason, all wheels, including the
spare wheel, must have the same tire outside diameter.
When testing the parking brake on a brake test
dynamometer, the engine must be shut off. Otherwise,
the ESP will immediately be engaged and will apply the
rear wheel brakes.
In winter operation, the maximum effectiveness of the
ESP is only achieved with Mercedes-Benz recommended
M+S rated radial-ply tires and/or snow chains.
Synchronizing ESP
If the power supply was interrupted (battery
disconnected or empty), the BAS/ESP malfunction
indicator lamp may be illuminated with the engine
running.
Turn steering wheel completely to the left and then to
the right. The BAS/ESP malfunction indicator lamp
should go out.ESP control switch
ESP control switch located on center console.
To improve the vehicle’s traction when driving with
snow chains, or starting off in deep snow, sand or gravel,
switch off ESP by pressing the upper half of the ESP
switch. The ESP warning lamp , located in the
speedometer dial, is continuously illuminated.
P54.25-2037-26
209

Technical data
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Rims – Tires
1 Also permissible 225/45 ZR 17
2 Also permissible 245/40 ZR 17
3
3 Must not be used with snow chains.
Model CLK 320
Rims (light alloy)
Wheel offset7 J x 16 H 2
1.46 in (37 mm)
All season tires:
Radial-ply tires 205/55 R 16 91 H
Winter tires:
Radial-ply tires 205/55 R 16 91 H M+S
Spare wheel
Rim (light alloy)
Wheel offset:7 J x 16 H 2
1.46 in (37 mm)
All season tire:
Radial-ply tire 205/55 R 16 91 HModel CLK 430
Rims front axle
(AMG light alloy)
Wheel offset:7
1/2 J x 17 H 2
1.46 in (37 mm)
Rims rear axle
(AMG light alloy)
Wheel offset:8
1/2 J x 17 H 2
1.18 in (30 mm)
Radial-ply tires:
summer tires, front axle
summer tires, rear axle225/45 R 17 91 W
1
245/40 R 17 91 W
2, 3
Spare wheel
Rim (light alloy)
Wheel offset:7
1/2 J x 17 H 2
1.46 in (37 mm)
Summer tire:
Radial-ply tire 225/45 R 17 91 W
1
304

Power seats, front..................................................... 45
Backrest............................................................... 53
P ower wi n dows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
E x p r e s s o p en i n g a n d cl o s i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Opening and closing ...........................................32 O p e r a t ed wi t h s o ft t op s wi t ch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 S yn ch r on iz in g . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . 144
Problems with your vehicle .......................................14 Product information ................................................... 7 R R a i n s e n s o r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Rear view mirr or s
Exterior ................................................................76 Inside...................................................................75
Repla cing wiper blad e in ser t .................................. 288 Reserve key .............................................................26 Roll bar
Switch.................................................................. 51 W a r n i n g la m p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Roller blin d
Horizontal .........................................................167 Vertical ...............................................................168
Safety guidelines for the seat belt, emergency
tensioning retractor and airbag ........................... 70
Seat belts ................................................................. 57
Fastening............................................................. 59 Seat belt nonusage warning system .................... 58 Unfastening......................................................... 60 Warning lamp .....................................................220
Seat belts and supplemental
restraint system (SRS) ......................................... 57
Service indicator
S e e fl ex i bl e s er vi ce s ys t em (E S S) . . . . . . . . . . . . . . . . . . . . . . . . 107
Set ti n g th e audi o vol um e . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .106 Shelf below rear window .........................................238 Snow chains............................................................198
320 S