Page 209 of 394

209 Controls in detail
Driving systems
Range of the sensors
To function properly, the sensors must be
free of dirt, ice, snow and slush. Clean the
sensors regularly, being careful not to
scratch or damage the sensors.Front sensors
Rear sensors
Minimum distance
If the system encounters an obstacle in
this range, all the warning lamps light up
and you hear a warning signal. If the obsta-
cle is closer than the minimum distance,
the actual distance may no longer be indi-
cated by the system.
Center
approx. 40 in (100 cm)
Corners
approx. 23 in (60 cm)
Center
approx. 48 in (120 cm)
Corners
approx. 32 in (80 cm)
!During parking maneuvers, pay special
attention to objects located above or
below the height of the sensors (e.g.
planters or trailer hitches). The Park-
tronic system will not detect such ob-
jects at close range and damage to
your vehicle or the object may result.
Ultrasonic signals from outside sourc-
es (e.g. truck air brakes or jackham-
mers) may impair the operation of the
Parktronic system.
Center
approx. 8 in (20 cm)
Corners
approx. 6 in (15 cm)
Page 220 of 394
220 Controls in detailUseful featuresCup holder in the dashboardOpening cup holder
Push cover1.
The cup holder opens automatically.
Closing cup holder
Push the cup holder back until it engag-
es.Cup holder in rear seat armrest
Warning!
G
When not in use, keep the cup holder
closed. Place only containers that fit into the
cup holder to prevent spills. Use lids on
open containers and do not fill containers to
a height where the contents, especially hot
liquids, could spill during vehicle
maneuvers.
Warning!
G
When not in use, keep the cup holder
closed. Place only containers that fit into the
cup holder to prevent spills. Use lids on
open containers and do not fill containers to
a height where the contents, especially hot
liquids, could spill during vehicle
maneuvers.
Page 253 of 394

253 Operation
Engine compartment
Engine compartment
Hood
Opening
1Hood lock release
Pull lever 1 downwards.
The hood is unlocked.
2Lever for opening the hood
Push lever 2 on 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 ap-
proximately 30 seconds or may even restart
after the engine has been turned off. Stay
clear of fan blades.
Page 254 of 394

254 OperationEngine compartment
Closing
Let the hood drop from a height of ap-
proximately 1 ft (30 cm).
The hood will lock audibly.
Check to make sure that the hood is
fully closed.
If you can raise the hood at a point
above the headlamps, then it is not
properly closed. Open it again and let it
drop with somewhat greater force.
Engine oil
The amount of oil your engine needs will
depend on a number of factors, including
driving style. Higher oil consumption can
occur when
the vehicle is new
the vehicle is driven frequently at high-
er engine speeds
Engine oil consumption checks should only
be made after the vehicle break-in period.
Checking engine oil level
When checking the oil level the vehicle
must
be parked on level ground
be at normal operating temperature
have been stationary for at least five
minutes with the engine turned off
Warning!
G
If you see flames or smoke coming from the
engine compartment, or if the coolant tem-
perature gauge indicates that the engine is
overheated, do not open the hood. Move
away from the vehicle and do not open the
hood until the engine has cooled. If neces-
sary, call the fire department.Warning!
G
The engine is equipped with a transistorized
ignition system. Because of the high voltage
it is dangerous to touch any components (ig-
nition coils, spark plug sockets, diagnostic
socket) of the ignition system
with the engine running
while starting the engine
if ignition is “on” and the engine is
turned manually
Warning!
G
Be careful that you do not close the hood on
anyone.
Page 349 of 394
349 Technical data
Main dimensions
Main dimensions
Model
CLK 320
CLK 500
CLK 55 AMG
Overall vehicle length
182.6 in (4638 mm)
182.6 in (4638 mm)
182.6 in (4638 mm)
Overall vehicle width
68.5 in (1740 mm)
68.5 in (1740 mm)
68.5 in (1740 mm)
Overall vehicle height
55.4 in (1406 mm)
55.4 in (1408 mm)
55.4 in (1408 mm)
Wheelbase
106.9 in (2715 mm)
106.9 in (2715 mm)
106.9 in (2715 mm)
Track, front
58.8 in (1493 mm)
58.8 in (1493 mm)
58.8 in (1493 mm)
Track, rear
58.0 in (1474 mm)
58.0 in (1474 mm)
58.0 in (1474 mm)
Page 367 of 394

367 Index
A
ABS 23, 74, 361
ABS control 75
Malfunction indicator lamp 277
Messages in display 284
Warning lamp 277
Accelerator position, automatic transmis-
sion 146
Accident
In case of 49
Activating
Air conditioning (cooling) 163
Air recirculation mode 160
Anti-theft alarm system 80
Automatic climate control 155
Central locking (control system) 133
Charcoal filter 161
Distance warning function* 205
Distronic* 201
Easy-entry/exit feature 133
ESP 78
Exterior headlamps 46
Exterior lamps 106
Front and rear fog lamp 106
Hazard warning flasher 108
Headlamps 46High beams 108
Ignition 31
Ignition with KEYLESS-GO* start/stop
button 33
Immobilizer 51, 79
Rear window defroster 162
Residual heat 163
Seat heater* 101
Tow-away alarm 81
Windshield wipers 48
Activating steering wheel gearshift control
147
Downshifting 148
Upshifting 147
Adding
Coolant 257
Engine oil 255
Additional turn signals 317
Adjustable air vents, rear passenger com-
partment 164Adjusting 34
Air distribution 158
Air volume 159
Backrest tilt 36
Exterior rear view mirror 38
Head restraint height 36
Head restraint tilt 36
Inside rear view mirror 38
Instrument cluster illumination 111
Mirrors 38
Multicontour seat* 100
Seat cushion depth 100
Seat cushion tilt 36
Seat fore and aft adjustment 35
Seat height 35
Seats 34
Steering column height 38
Steering column length 38
Steering wheel 37
Air conditioning (cooling)
Turning off 163
Turning on 163
Air conditioning refrigerant 353
Air distribution
Adjusting 158
Page 377 of 394

377 Index
GPS 363
GPS see COMAND* 233
H
Hand-held transmitter
Programming integrated remote con-
trol 236
Hands-free microphone 27
Hard plastic trim items
Cleaning 273
Hazard warning flasher 108
Switching off 108
Switching on 108
Head restraints 97
Headlamp cleaning system* 259
Headlamps
Automatic control 106
Bi-Xenon 361
Cleaning 271
Cleaning system* 151, 259
Refilling washer fluid 259
Switching off 51
Switching on 46
Washer fluid 357
Washer system* 357
Headliner
Cleaning 273Heated seats* 101
Height adjustment
Head restraints 36
Steering wheel 37
High beam flasher 47, 108
High beam headlamps
Messages in display 298
Replacing bulbs 317, 319
Switching on 108
High mounted brake lamp 317
Hood 253
Closing 254
Message in display 296
Opening 253
Hydroplaning 245
I
Identification labels 342
Ignition 31, 33
Switching on 44
Immobilizer 79
Activating 79
Deactivating 79
Indicator lamps see Lamps, indicator and
warningInfant and child restraint systems 66
Installing 70
LATCH child seat mounts 71
Information
About service and warranty 10
Button for Tele Aid* 232
Inside rear view mirror
Adjusting 38
Antiglare 149
Installing
Infant and child restraint systems 70
Towing eye bolt 336
Wiper blades 323
Instrument cluster 22, 111, 363
Cleaning 273
Coolant temperature display 112
Illumination 111
Lamps in 276–280
Multifunction display 114
Outside temperature indicator 113
Selecting language 127
Instruments and controls see Cockpit 20
Page 383 of 394

383 Index
Passenger compartment 247
Fuse box in 337
Inside rear view mirror 38
Interior lighting 109
Parcel net in front passenger footwell
222
Storage bags, rear side of the front
seats 222
Passenger safety see Occupant safety 56
Pedals 241
Phone book*
Loading 139
Quick search 139
Phone number*
Dialing 139
Redialing 140
Plastic and rubber parts
Cleaning 273
Playing
CDs 179
Poly-V-belt drive 364
Layout 343
Positions (Memory function)
Recalling from memory 103
Storing into memory 103
Power assistance 241Power seat
Adjusting backrest tilt 36
Adjusting head restraint height 36
Adjusting head restraint tilt 36
Adjusting seat cushion tilt 36
Adjusting seat height 35
Front seat head restraints 98
Seat fore and aft adjustment 35
Power train 364
Power washer 269
Power windows 187
Blocking of rear window operation 72
Side windows 187
Synchronizing 189
Practical hints
First aid kit 305
Fuses 337
Lamp in center console 282
Lamps in instrument cluster 276
Messages in the display 283
Minispare wheel 307
Spare wheel bolts 309
Towing the vehicle 334
Vehicle jack 306
Vehicle tool kit 305
Premium unleaded gasoline 354Problems
While driving 49
With vehicle 17
Product information 9
Program mode selector switch 364
Automatic transmission 145
Q
Quick search
Phone book* 139
R
Radio
Selecting stations 120
Station search 120
Station selection setting 132
Radio mode 171
Radio see Radio mode
Radio transmitters, control and operation
248
Range (distance to empty)
Calling up 137
Rapid seat heating*
Switching on 101
Reading lamp 27
Rear bench seat
Foldable 215