Page 314 of 489
313 Operation
Engine compartment
CLK 3501Filler capCLK 5001Filler cap
Unscrew filler cap1 from filler neck.
Add engine oil as required.
Be careful not to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
Screw filler cap1 back on filler neck.
More information on engine oil can be
found in the “Technical data” section
(
page 452) and (
page 454).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the automatic transmission.
!Excess oil must be siphoned or drained
off. It could cause damage to the
engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.
Page 453 of 489
452 Technical dataFuels, coolants, lubricants, etc.CapacitiesVehicle components and their respective
lubricants must match. Therefore only use
products tested and approved by
Mercedes-Benz.Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
CLK 350
CLK 500
8.5 US qt (8.0 l)
7.9 US qt (7.5 l)
Approved engine oils
Automatic transmission
CLK 350
CLK 500
9.0 US qt (8.5 l)
9.0 US qt (8.5 l)
MB Automatic Transmission Fluid
Rear axle
CLK 350
CLK 500
1.16 US qt (1.1 l)
1.69 US qt (1.6 l)
Hypoid gear oil SAE 85 W 90
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin
CHF 11S)
Front wheel hubs
approx. 3.0 oz (85 g) each
High temperature roller bearing grease
Brake system
0.64 US qt (0.6 l)
MB Brake Fluid (DOT 4+)
Page 469 of 489

468 IndexAutomatic locking when driving 120
Automatic shift program 176
Automatic transmission 170
Accelerator position 174
Emergency operation
(Limp-Home Mode) 179
Gear ranges 175
Gear selector lever 48, 170
Gear selector lever position 170, 172
Gear selector lever,
One-touch gearshifting 177
Gear shifting malfunctions 179
Kickdown 174
Manual (One touch) gearshifting 177
One-touch gearshifting, Steering
wheel gearshift control 178
Shift program mode
selector switch 176
Starting engine 48
Transmission fluid level 313
Automatic Transmission Fluid see ATFB
Backrest 265
Seat, Multicontour* 125
Seat, Power 38
Backup lamps
Messages in display 393
Replacing bulbs 412, 413
Bar 342
BAS 89, 461
Batteries, SmartKey
Changing 410
Checking battery condition 102
Batteries, SmartKey with KEYLESS-GO*
Changing 411
Checking battery condition 108
Battery, Vehicle 315, 426
Charging 428
Connecting 429
Disconnecting 427
Installing 428
Jump starting 430
Messages in display 382
Removing 428Bead 342
Beverage holder see Cup holder
Bi-Xenon headlamps* see Headlamps
Block heater (Canada only) 347
Bolts, Spare wheel 403
Brake Assist System see BAS
Brake fluid 454
Checking 307
Message in display 383
Brake lamp
Cleaning lenses 355
High mounted 413
Message in display 391
Replacing bulbs 413, 417
Brake pads
Message in display 383
Brakes 296
Warning lamp 361
Break-in period 294
Bulbs, replacing see Replacing bulbs
Page 474 of 489

473 Index
F
Filler cap, Engine oil 313
Filler neck, Engine oil 313
First aid kit 398
Flat tire 420
Jacking up the vehicle 421
Lowering the vehicle 424
Minispare wheel 401
Mounting the spare wheel 421
Preparing the vehicle 420
Flexible Service System see
FSS (Canada vehicles)
Floormats* 277
Fluids
Brake fluid 307, 454
Engine coolant 307
Engine oil 307, 454
Windshield washer and headlamp
cleaning* system 307, 453
Fog lamps 134, 413
Messages in display 392
Replacing bulbs 412, 413, 417
Front air bags 67
Front lamps see Headlamps
Front passenger front air bag 63, 67
Messages in display 376–379Front passenger front
air bag off indicator lamp 27, 81, 368
Front seat head restraints see
Head restraints
FSS (Canada vehicles) 348, 462
Fuel 306, 453
Additives 456
Automatic transmission fluid 452
Brake fluid 452
Capacities 452
Capacities, Fuel tank 453
Engine coolant 453
Engine oil 452
Filling the tank 305
Fuel display 25
Fuel filler flap and cap 305
Fuel filler flap and cap, Multifunction
display messages 387
Fuel reserve warning lamp 365
Power steering fluid 452
Premium
unleaded gasoline 306, 453, 455
Requirements, Octane rating 455
Technical data 453
Fuel cap
Message in display 363Fuel consumption statistics
After start 165
Resetting 166
Since last reset 166
Fuel filler flap 305
Locking/unlocking 305
Opening 305
Fuel reserve warning lamp 25
Fuel tank
Capacity 453
Filler flap 305
Message in display 390
Fuel, Premium
unleaded gasoline 306, 453, 455
Fuels, coolants, lubricants etc.
Capacities 452
Fuses 436
Aids for changing fuses 436
Fuse box (main)
in passenger compartment 437
Fuse box in engine compartment 437
Fuse box in trunk 438
Fuse chart 436
Fuse extractor 436
Replacing 436
Spare fuses 436