2008 MERCEDES-BENZ CLK550 Steering fluid

56 Getting started
Driving
Turn signals
Combination switch
1Turn signals, right
2Turn signals, left
Press the combination switch in
direction of arrow1or2.
The corresponding turn signal indicator
lampLorK in the instrument
cluster flashes (
page 28).
The combination switch resets
automatically after major steering wheel
movements.
Windshield wipers
Combination switch
1Single wipe
Wiping with windshield washer fluid
2Switching on windshield wipers
Switch on the ignition (page 38).Switching on windshield wipers
Turn the combination switch to the de-
sired position depending on the
intensity of the rain.
0Windshield wipers off
IIntermittent wiping
IINormal wiper speed
IIIFast wiper speed
iTo signal minor directional changes such as
changing lanes, press the combination switch
only to the point of resistance and release. The
corresponding turn signals will flash three times.!Do not operate the windshield wipers when
the windshield is dry. Dust that accumulates on
a windshield might scratch the glass and/or
damage the wiper blades when wiping occurs on
a dry windshield. If it is necessary to operate the
windshield wipers in dry weather conditions, al-
ways operate the windshield wipers with wind-
shield washer fluid (
page 57).

139 Controls in detail
Instrument cluster
Coolant temperature indicator
The coolant temperature indicator is on
the right side in the instrument cluster
(
page 28).
Resetting trip odometer
Make sure you are viewing the stan-
dard display in the multifunction dis-
play (
page 147).
If it is not displayed, press buttonè
orÿ on the multifunction steering
wheel repeatedly until the standard dis-
play appears (
page 142).
Press and hold the reset button on the
instrument cluster (
page 138) until
the trip odometer is reset.
Warning!G

Driving when your engine is 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 which can occur
just by opening the hood. Stay away
f r o m t h e e n g i n e i f y o u s e e o r h e a r s t e a m
coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of
the vehicle and do not stand near the vehicle
until the engine has cooled down.
!Excessive coolant temperature triggers a
warning in the multifunction display
(
page 406) and the red coolant warning lamp
in the instrument cluster comes on
(
page 383).
The engine should not be operated with the cool-
ant temperature above 248°F (120°C). Doing so
may cause serious engine damage which is not
covered by the Mercedes-Benz Limited
Warranty.
iDuring severe operating conditions, e.g.
stop-and-go traffic, the coolant temperature may
rise close to 248°F (120°C).

310 Operation
Driving instructions
Power assistance
Brakes
To help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.If your brake system is normally only sub-
ject to moderate loads, you should occa-
sionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads.
Refer to the description of the Brake Assist
System (BAS) (
page 92).
Brake pad wear or a leak in the system may
be the reason for low brake fluid level in
the reservoir.
The brake fluid level in the reservoir may
be too low if the brake warning lamp in the
instrument cluster comes on and an
acoustic warning sounds although the
parking brake is released (
page 380).
Warning!G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle.
Warning!G
After driving in heavy rain for some time
without applying the brakes or through wa-
ter deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles
in front.
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheating,
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the
vehicle in sufficient time to avoid an acci-
dent.
!Because the ESP® operates automatically,
the engine must be shut off (SmartKey in starter
switch position0 or1 or KEYLESS-GO
start/stop button* in position0 or1) when

the parking brake is being tested on a brake
test dynamometer

the vehicle is being towed with the front axle
raised
Active braking action through the ESP
® may oth-
erwise seriously damage the brake system.
Warning!G
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.

490 Technical data
Fuels, coolants, lubricants, etc.
ModelCapacityFuels, coolants, lubricants, etc.
Power steeringCLK 350
CLK 550
CLK 63 AMGapprox. 1.1 US qt (1.0 l)
approx. 1.1 US qt (1.0 l)
approx. 1.3 US qt (1.2 l)MB Power Steering Fluid
(Pentosin CHF 11S)
Front wheel hubsCLK 350
CLK 550
CLK 63 AMGapprox. 3.0 oz (85 g) each
approx. 3.0 oz (85 g) each
approx. 2.5 oz (70 g) eachHigh temperature roller bearing grease
Brake system0.64 US qt (0.6 l)MB Brake Fluid (DOT 4+)
Cooling systemCLK 350
CLK 550
CLK 63 AMGapprox. 7.8 US qt (7.4 l)
approx. 9.7 US qt (9.2 l)
approx. 11.5 US qt (10.9 l)MB 325.0 Anticorrosion/Antifreeze
Agent
Fuel tank
including a reserve of
CLK 350
CLK 550
CLK 63 AMG
16.35 US gal (62.0 l)
2.11 US gal (8.0 l)
2.11 US gal (8.0 l)
3.17 US gal (12.0 l)Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg. of 96 RON / 86 MON)
Air conditioning systemR-134a refrigerant and special PAG lu-
bricant oil (never R-12)
Windshield washer system
Heated windshield washer system and
headlamp cleaning system*3.2 US qt (3.0 l)
6.4 US qt (6.0 l)MB Windshield Washer Concentrate1
1Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing point or MB Windshield Washer Concentrate “MB SummerFit”
and commercially available premixed windshield washer solvent / antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 496).

498 Index
Automatic lighting control,
Interior lighting 136
Automatic locking when driving 118
Automatic shift program 178
Automatic transmission
Accelerator position 176
Automatic shift program 178
Emergency operation
(limp-home mode) 184
Gear ranges 177
Gear selector lever 51, 172
Gear selector lever control
one-touch gearshifting 179
Gear selector lever positions 174
Gear shifting malfunctions 184
Kickdown 176
Kickdown, manual shift program 184
Manual shift program
CLK 63 AMG 182
Program mode selector switch 178
Shifting procedure 173
Starting engine 51
Steering wheel gearshift control
one-touch gearshifting* 180
Transmission fluid level 327
Automatic Transmission Fluid see ATFB
Backrest 281
Seat, Multicontour* 124
Seat, Power 42
Backup lamps
Messages in display 414
Replacing bulbs 443, 444
Bar 358
BAS 92
Batteries, SmartKey
Changing 442
Checking battery condition 108
Battery, Vehicle 329, 464
Charging 466
Connecting 466
Disconnecting 465
Installing 466
Jump starting 467
Messages in display 403
Removing 465
Bead 358
Beverage holder see Cup holder
Block heater (Canada only) 363
Bolts, Spare wheel 426Brake fluid 491
Checking 322
Message in display 404
Brake lamp
Cleaning lenses 372
High mounted 444
Replacing bulbs 444, 448
Brake pads
Message in display 404
Brakes 310
High-performance brake system
(CLK 63 AMG only) 311
Warning lamp 380
Break-in period 308
Bulbs, replacing see Replacing bulbs

503 Index
F
Filler cap, Engine oil 327
Filler neck, Engine oil 327
First aid kit 421
Flat tire 452
Jacking up the vehicle 459
Lowering the vehicle 462
Minispare wheel 425
Mounting the spare wheel 458
Preparing the vehicle 452
TIREFIT (CLK 63 AMG only) 422
TIREFIT kit* 452
Floormats* 291
Fluids
Brake fluid 322, 491
Engine coolant 322, 494
Engine oil 322, 491
Windshield washer and headlamp
cleaning* system 322, 496
Fog lamps 132, 444
Messages in display 412
Replacing bulbs 444, 445, 448
Front air bags 70
Front lamps see Headlamps
Front passenger front air bag 65, 70
Messages in display 396–399Front passenger front air bag
off indicator lamp 31, 76, 390
Front seat head restraints
see Head restraints
Fuel 321, 489
Additives 493
Automatic transmission fluid 489
Brake fluid 490
Capacities 489
Capacities, Fuel tank 490
Engine coolant 490
Engine oil 489
Filling the tank 320
Fuel display 29
Fuel filler flap and cap 320
Fuel filler flap and cap, Multifunction
display messages 408
Fuel reserve warning lamp 385
Power steering fluid 490
Premium
unleaded gasoline 321, 490, 492
Requirements, Octane rating 492
Technical data 489
Fuel cap
Message in display 382Fuel consumption statistics
After start 167
Resetting 168
Since last reset 168
Fuel filler flap 320
Locking/unlocking 320
Opening 320
Fuel reserve warning lamp 29
Fuel tank
Capacity 490
Filler flap 320
Fuel, Premium
unleaded gasoline 321, 492
Fuels, coolants, lubricants etc.
Capacities 489
Fuses 472
Fuse box (main)
in passenger compartment 472
Fuse box
in engine compartment 473
Fuse box
in trunk 474
Replacing 472

508 Index
Mirrors
Adjusting 47
Antiglare position 185
Auto-dimming 186
Exterior rear view mirrors 47
Interior rear view mirror 47
Mobile phone see Telephone*
MOE tires* see MOExtended system*
MOE* see MOExtended system*
MOExtended system* 463
MOExtended tires* 482
MON 321
Motor Octane Number see MON
MP3 230
Multicontour seat* see
Seats, Multicontour*
Multifunction display 141
Changing settings see
Control system menus and
Control system submenus
Selecting language 158
Symbol messages 403–420
Text messages 394–401Multifunction display messages 392
ABS 394
Battery 403
Brake fluid 404
Brake pads 404
Check engine 405
Coolant 405–407
Engine 405
Engine coolant 405–407
ESP
®394
Fog lamps 412
Front passenger
front air bag 396–399
Fuel cap 408
Gear selector lever 400
Headlamps 411–415
Key, SmartKey 411
KEYLESS-GO* 410
Lamps 413
Lamps, exterior 411–415
License plate lamp 413
Light sensor 411
Low tire pressure 419
Parking brake 404
Parking lamps 412
Roll bars 417Soft top 420
SRS 416
Steering gear oil 417
Tele Aid 418
Telephone* 418
Turn signals 412
Windshield washer fluid 420
Multifunction steering wheel 30, 142
Button operation 142
N
Navigation system* 153
See separate COMAND*
operating instructions
Net, Parcel 286
Neutral gear position,
Automatic transmission 172, 174
New vehicle break-in 308
Night security illumination 132
Normal occupant weight 359
Number, paintwork code 478
Number,
vehicle identification (VIN) 478, 479