charging MERCEDES-BENZ CLK550 COUPE 2007 C209 Owner's Manual

Contents
Replacing bulbs ................................. 406
Bulbs ............................................ 407
Replacing bulbs for front lamps.... 409
Replacing bulbs for rear lamps ..... 411
Replacing wiper blades ...................... 413
Removing and installing
wiper blades ................................. 413
Flat tire .............................................. 415
Preparing the vehicle.................... 415
Mounting the Minispare wheel ..... 416
MOExtended system*................... 420
Battery ............................................... 421
Disconnecting the battery ............ 422
Removing the battery ................... 423
Charging and reinstalling
the battery.................................... 423
Reconnecting the battery ............. 424
Jump starting ..................................... 425
Towing the vehicle ............................. 427
Towing the vehicle........................ 427
Installing towing eye bolt.............. 429
Fuses ................................................. 431
Main fuse box
in passenger compartment .......... 432
Fuse box in engine compartment . 433
Fuse box in trunk.......................... 434
Technical data................................. 435
Parts service ...................................... 436
Warranty coverage............................. 437
Loss of Service and Warranty
Information Booklet ..................... 437
Identification labels ........................... 438
Layout of poly-V-belt drive ................. 440
CLK 350/CLK 550 ....................... 440
Engine................................................ 441
Rims and tires.................................... 442
Same size tires ............................. 443
Mixed size tires ............................ 444
Minispare wheel ........................... 445
Electrical system ............................... 446
Main dimensions and weights............ 447
Main dimensions .......................... 447
Weights ........................................ 447
Fuels, coolants, lubricants, etc. ......... 448
Capacities .................................... 448
Engine oils.................................... 450
Engine oil additives ...................... 450
Air conditioning refrigerant .......... 450
Brake fluid .................................... 450
Premium unleaded gasoline ......... 451
Fuel requirements ........................ 451Gasoline additives ........................ 452
Coolants ...................................... 453
Windshield washer system and
headlamp cleaning system*......... 455
Index................................................. 457

356 Practical hints
What to do if …?
Lamps in instrument clusterGeneral information:
If any of the following lamps in the instru-
ment cluster fails to come on during thebulb self-check when switching on the igni-
tion, have the respective bulb checked and
replaced if necessary.
ProblemPossible cause/consequenceSuggested solution
-The yellow ABS indicator lamp
comes on while the engine is
running.The ABS has detected a malfunction and has
switched off. The BAS and the ESP® are also
switched off (see messages in the multifunc-
tion display).
The brake system is still functioning normally
but without the systems specified above.
If the ABS control unit is malfunctioning,
other systems such as the navigation
system* or the automatic transmission may
also be malfunctioning.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Read and observe messages in the
multifunction display (
page 370).
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
The charging voltage has fallen below
10 volts. The ABS has switched off.
The battery might not be charged sufficiently.Switch off electrical consumers that
are currently not needed, e.g. seat
heating*.
If necessary, have the generator and
battery checked.
When the voltage is above this value
again, the ABS is operational again.

371 Practical hints
What to do if …?
Display messagePossible cause/consequencePossible solution
ESPunavailable
See Operator’s Man.The ESP® is temporarily not available.
The system’s self-diagnosis may not be
completed yet.
The ABS and the BAS might not be
operational.
The brake system is still functioning normally
but without the systems specified above.Drive a short distance with added
caution at a vehicle speed of above
12 mph (20 km/h).
When the message disappears, the
ESP
® is available again.
If the message does not disappear:
Continue driving with added caution.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon as
possible.
Failure to follow these instructions increas-
es the risk of an accident.
The charging voltage has fallen below 10 volts.
The ESP® has switched off.
The BAS may be switched off, too. The battery
may not be charged. The battery or the gener-
ator may be malfunctioning.
The ABS might not be operational.
The brake system is still functioning normally
but without the systems specified above.
Continue driving with added caution.
When the voltage is above this value
again, the ESP
® is operational again.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon as
possible.

378 Practical hints
What to do if …?
Symbol messages
Display symbolDisplay messagePossible cause/consequencePossible solution
#The battery is no longer charging.
Possible causes:

broken poly-V-belt

alternator malfunctioning
Stop immediately in a safe location or
as soon as it is safe to do so and check
the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise
the engine will overheat due to an
inoperative water pump which may
result in damage to the engine. Notify
an authorized Mercedes-Benz Center.
If it is intact:
Drive immediately to the nearest
authorized Mercedes-Benz Center.
Low voltage
Charge batteryThe battery has insufficient voltage.Start the engine (page 50).
Low voltage
Switch off
consumersThe battery has insufficient voltage.Turn off unnecessary electrical con-
sumers.

423 Practical hints
Battery
Removing the battery
Remove the screw securing the
battery.
Remove the battery support and
bracket.
Pull out the ventilation hose from the
battery (depending on battery arrange-
ment in your vehicle model, the ventila-
tion hose is located either on the left or
right side of the battery).
Take out the battery.
Charging and reinstalling the batteryCharge battery in accordance with the
instructions of the battery charger
manufacturer.
Reinstall the charged battery. Follow
the previously described steps in
reverse order.Warning!G
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit approved by Mercedes-Benz is
being used. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
An accessory battery charge unit specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available, permitting the charging of the bat-
tery in its installed position. Contact an au-
thorized Mercedes-Benz Center for
information and availability. Charge battery
in accordance with the separate instruc-
tions for the accessory battery charger.
!The battery, its filler caps and the ventilation
hose must always be securely installed when the
vehicle is in operation.

458 Index
Automatic transmission
Accelerator position 172
Automatic shift program 174
Emergency operation
(limp-home mode) 178
Gear ranges 173
Gear selector lever 50, 168
Gear selector lever control
one-touch gearshifting 175
Gear selector lever positions 170
Gear shifting malfunctions 178
Kickdown 172
Program mode selector switch 174
Shifting procedure 169
Starting engine 50
Steering wheel gearshift control
one-touch gearshifting* 177
Transmission fluid level 309
Automatic Transmission Fluid see ATFB
Backrest 264
Seat, Multicontour* 123
Seat, Power 40
Backup lamps
Messages in display 389
Replacing bulbs 406, 407
Bar 337
BAS 90
Batteries, SmartKey
Changing 404
Checking battery condition 107
Battery, Vehicle 311, 421
Charging 423
Connecting 424
Disconnecting 422
Installing 423
Jump starting 425
Messages in display 378
Removing 423Bead 337
Beverage holder see Cup holder
Block heater (Canada only) 342
Bolts, Spare wheel 398
Brake fluid 450
Checking 305
Message in display 379
Brake lamp
Cleaning lenses 350
High mounted 407
Replacing bulbs 407, 411
Brake pads
Message in display 379
Brakes 294
Warning lamp 358
Break-in period 292
Bulbs, replacing see Replacing bulbs