Page 9 of 498

Contents
Uniform Tire Quality Grading 
Standards (U.S. vehicles) .............  336
Tire ply material ...........................  337
Tire and loading terminology ........  338
Rotating tires ...............................  341
Winter driving ....................................  342
Winter tires ..................................  342
Block heater (Canada only) ..........  343
Snow chains.................................  343
Maintenance......................................  344
Clearing the maintenance 
service indicator...........................  345
Maintenance 
service term exceeded .................  345
Calling up the 
maintenance service indicator .....  345
Resetting the 
maintenance service indicator .....  346
Vehicle care .......................................  347
Cleaning and care of vehicle ........  347
Practical hints.................................. 353
What to do if …? ................................. 354
Lamps in instrument cluster ......... 354
Lamp in center console................. 360
Vehicle status messages 
in the multifunction display........... 362
Where will I find...? ............................. 389
First aid kit.................................... 389
Vehicle tool kit .............................. 389
Minispare wheel 
(except CLK 55 AMG) ................... 393
Collapsible tire 
(CLK 55 AMG only) ....................... 394
Spare wheel bolts ......................... 396
Unlocking/locking in an emergency... 397
Unlocking the vehicle.................... 397
Locking the vehicle ....................... 398
Fuel filler flap ................................ 399
Manually unlocking 
the gear selector lever .................. 400Opening/closing in an emergency .....  401
Power tilt/sliding sunroof* ...........  401
Replacing batteries in the SmartKey/ 
SmartKey with KEYLESS-GO*.............  402
SmartKey ......................................  402
SmartKey with KEYLESS-GO* .......  403
Replacing bulbs ..................................  404
Bulbs............................................. 404
Replacing bulbs for front lamps .... 406
Replacing bulbs for rear lamps .....  410
Replacing wiper blades ......................  411
Removing wiper blades .................  411
Installing wiper blades ..................  411
Flat tire...............................................  412
Preparing the vehicle .................... 412
Mounting the spare wheel ............ 413 
     
        
        Page 54 of 498

52 Getting startedDrivingWindshield wipers
The combination switch is located on the 
left of the steering column.Combination switch1Single wipe
2Switching on windshield wipers
Switch on ignition (
page 34).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 speediThe intermittent wiping interval is 
dependent on wetness of windshield. 
After the initial wipe, pauses between 
wipes are automatically controlled by 
the rain sensor.
!Do not leave windshield wipers in 
intermittent setting when the vehicle is 
taken to an automatic car wash or 
during windshield cleaning. Wipers will 
operate in the presence of water 
sprayed on the windshield, and wipers 
may be damaged as a result.
The switch should not be left in 
intermittent setting as the wipers will 
wipe the windshield once every time 
the engine is started. Dust that 
accumulates on the windshield might 
scratch the glass and/or damage the 
wiper blades when wiping occurs on a 
dry windshield. 
     
        
        Page 310 of 498

308 OperationEngine compartmentHood
Opening
The hood lock release lever is located to 
the left of the steering wheel under the 
dashboard.
1Hood lock release lever
Pull lever 1 downwards.
The hood is unlocked.
2Lever for opening the hood
Push lever2 under the hood upwards.
Pull up on the hood and then release it.
The hood will be automatically held 
open at shoulder height by gas-filled 
struts.
Warning!
G
Do not pull the release lever while the vehi-
cle is in motion. Otherwise the hood could 
be forced open by passing air flow. 
!To avoid damage to the windshield wip-
ers or hood, never open the hood if the 
wiper arms are folded forward away 
from the windshield.
Warning!
G
To help prevent personal injury, stay clear of 
moving parts when the hood is open and the 
engine is running. Make sure the hood is 
properly closed before driving. When closing 
the hood, use extreme caution not to catch 
hands or fingers.
The radiator fan may continue to run for 
approximately 30 seconds or even restart 
after the engine has been turned off. Stay 
clear of fan blades. 
     
        
        Page 352 of 498

350 OperationVehicle careCleaning the Parktronic system* 
sensors
1Parktronic system* sensors
Clean the sensors1 on the bumpers 
using a mild car wash detergent, such 
as Mercedes-Benz approved Car Sham-
poo, with plenty of water and a soft, 
non-scratchy cloth.
When using a steam cleaner or power 
washer, aim nozzle only briefly from a min-
imum distance of 12 in (30 cm) at 
sensors1.Do not apply strong pressure to the sensor 
cover, applying strong pressure may dam-
age the sensor cover.
To prevent scratches, never apply strong 
force and only use a soft, non-scratchy 
cloth when cleaning the sensor. Do not at-
tempt to wipe dirty sensors with a dry cloth 
or sponge.Wiper blades
Fold wiper arm forward until it snaps 
into place.
Clean the wiper blade inserts with a 
clean cloth and detergent solution.Warning!
G
For safety reasons, switch off wipers and 
remove SmartKey from starter switch 
(vehicles with KEYLESS-GO*: make sure the 
vehicle’s on-board electronics have 
status
0) before cleaning the wiper blades. 
Otherwise, the wiper motor could suddenly 
turn on and cause injury. 
!Fold the windshield wiper arms back 
onto the windshield before turning the 
SmartKey in the starter switch.
Hold on to the wiper when folding the 
wiper arm back. If released, the force 
of the impact from the tensioning 
spring could crack the windshield. 
     
        
        Page 355 of 498
353 Practical hints
What to do if …?
Where will I find...?
Unlocking/locking in an emergency
Opening/closing in an emergency
Replacing bulbs
Replacing wiper blades
Flat tire
Battery
Jump starting
Towing the vehicle
Fuses 
     
        
        Page 413 of 498

411 Practical hints
Replacing wiper blades
Replacing wiper blades
Removing wiper blades
Remove SmartKey from starter switch.
Fold the wiper arm forward.1Unlock
2Lock
Pull the tab in direction of arrow1 and 
remove windshield wiper.
Installing wiper blades
Slide the wiper blade into the cutout on 
the wiper arm (see arrows).
Slide the tab back in the direction of 
arrow2 until it audibly engages.
Fold the wiper arm backward to rest on 
the windshield. Make sure you hold on 
to the wiper when folding the wiper arm 
back.
Warning!
G
For safety reasons, switch off wipers and 
remove SmartKey from starter switch 
(vehicles with KEYLESS-GO*: make sure the 
vehicle’s on-board electronics have 
status
0) before replacing a wiper blade. 
Otherwise, the wiper motor could suddenly 
turn on and cause injury.
!Never open the hood when the wiper 
arms are folded forward.
Hold on to the wiper when folding the 
wiper arm back. If released, the force 
of the impact from the tensioning 
spring could crack the windshield.
Do not allow the wiper arms to contact 
the windshield glass without a wiper 
blade inserted.
Make certain that the wiper blades are 
properly installed. Improperly installed 
wiper blades may cause windshield 
damage.
For your convenience, we recommend 
that you have this work carried out by 
an authorized Mercedes-Benz Center. 
     
        
        Page 467 of 498

465 Index
Central locking
Automatic 110
From inside 110
Switch 110
Switching on/off 
(control system) 158
Unlocking from inside 110
Central locking switch 110
Changing
CDs 225
Key setting 158
Charcoal filter 202
Activating 203
Deactivating 203
Charging
Vehicle battery 422
CHECK ENGINE 
malfunction indicator lamp 356
Checking
Coolant level 313
Oil level 307, 310
Tire inflate pressure 307
Vehicle lighting 307Child safety 70
Air bags 62
Front passenger front 
air bag off indicator lamp 77
Infant and child 
restraint systems 67, 70
LATCH child seat anchors 80
OCS 73
Child safety switch see 
Blocking of rear window operation
Child seat anchors see 
LATCH child seat anchors
Cigarette lighter 277Cleaning 347
Cup holder 351
Gear selector lever 351
Hard plastic trim items 351
Headlamps 178
Headliner 352
Instrument cluster 351
Leather upholstery 352
Light alloy wheels 351
Nubuck leather upholstery 
(CLK 55 AMG) 352
Parktronic system* sensor 350
Plastic and rubber parts 352
Seat belts 352
Steering wheel 351
Upholstery 352
Windows 351
Windshield 53
Wiper blades 350
Wood trims 352
Cleaning and care of vehicle 347
Cleaning tires 318 
     
        
        Page 474 of 498

472 IndexH
Hands-free microphone 29
Hard plastic trim items
Cleaning 351
Hazard warning flasher 131
Switching off 131
Switching on 131
Head restraints 113
Head unit
Time synchronization* with 151
Headlamp cleaning system* 315
Headlamps
Automatic control 125
Bi-Xenon 455
Cleaning 349
Cleaning system* 178, 315
Refilling washer fluid 315
Switching off 56
Switching on 50
Washer fluid 454
Washer system* 454
Headliner
Cleaning 352
Height adjustment
Head restraints 38High beam flasher 129
Replacing bulbs (Bi-Xenon*) 404
Replacing bulbs (Halogen) 404
High beam headlamps
Messages in display 383
Replacing bulbs (Bi-Xenon*) 404
Replacing bulbs (Halogen) 404, 406
Replacing bulbs for 
high beam flasher (Bi-Xenon*) 408
Switching on 129
High mounted brake lamp 405
Hood 308
Closing 309
Message in display 381
Opening 308
Hydroplaning 299I
Identification labels 436
Ignition 34, 36
Switching on 47
Immobilizer 89
Activating 89
Deactivating 89
Infant and child restraint systems 70
Installing 79
LATCH child seat anchors 80
Information
About service and warranty 10
Button for Tele Aid 284
Installing
Floormats* 278
Infant and child restraint systems 79
Towing eye bolt 427
Towing eye bolt (CLK 55 AMG) 428
Wiper blades 411