368 Practical hints
What to do if …
During severe operating conditions and
stop-and-go city traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display symbolDisplay messagePossible cause/consequencePossible solution
•Coolant
Stop, engine off!The coolant is too hot. Stop the vehicle in a safe location and
turn off the engine.
Only start the engine again after the
message disappears. You could
otherwise damage the engine.
Warning!G
Driving when your engine is badly over-
heated 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 and can occur just by opening
the hood. Stay away from the engine if you
see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
!
The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious
engine damage which is not covered by
the Mercedes-Benz Limited Warranty.
386 Practical hints
Unlocking/locking in an emergency
Unlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey, open the driver’s door and
the trunk using the mechanical key. Removing the mechanical key
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in direction of
arrow.
Slide mechanical key2 out of the
housing.Unlocking the driver’s door
1Unlocking
Insert the mechanical key into the
driver’s door lock until it stops.
Turn the mechanical key counterclock-
wise to position1.
The driver’s door is unlocked.
i
Unlocking and opening the driver’s
door and/or the trunk with the me-
chanical key will trigger the anti-theft
alarm system*.
To cancel the alarm, do one of the
following:
Press buttonŒ or‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
419 Practical hints
Towing the vehicle
Installing towing eye bolt
1Cover on right side of front bumper.
2Cover on right side of rear bumper.Removing cover
Press mark on cover1 or2 in
direction of arrows.
Lift cover off to reveal the threaded
hole for towing eye bolt.
The towing eye bolt is supplied with the
tool kit (located in the compartment under-
neath the trunk floor).
Screw towing eye bolt in to its stop and
tighten with lug wrench.
Reinstalling cover
Fit cover1 or2 and snap into place.
i
If the battery is disconnected or
discharged
the SmartKey will not turn in the
starter switch. For more informa-
tion, see “Battery” (
page 411)
and “Jump starting” (
page 415).
the gear selector lever will remain
locked in positionP. For informa-
tion on manually unlocking the
transmission gear selector lever
(
page 388).
460 Index
Power tilt/sliding sunroof 242
Opening/closing in an
emergency 389
Stopping 244
Synchronizing 244
Power tilt/sliding sunroof*
Messages in display 379
Opening/closing 242
Opening/closing, SmartKey 241
Power train 446
Power washer 342
Power windows 238
Cleaning 345
Opening/closing 238
Rear door window,
Blocking operation 80
Stopping 240
Synchronizing 240
Practical hints 350
Premium unleaded gasoline 438
Problems
While driving 52
With vehicle 17
Product information 9
Production options weight 333
Program mode 125Program mode selector switch 447
Automatic shift program, automatic
transmission 161
Manual shift program, automatic
transmission 165
PSI 333
Push starting 415
Push-start see Tow-start
R
Radio
Operation 200, 205
Selecting stations (Control
system) 131
Radio transmitters 290
Range (distance to empty) 151
Reading lamp 120
Rear bench seat, foldable* 252
Rear door window
Blocking operation 80
Rear fog lamp see Fog lamps
Rear lamps see Tail lamps
Rear outer seats
Adjusting head restraint height 107
Rear passenger compartment
Adjustable air vents 183, 196
Rear seat ashtray see AshtrayRear seat head restraints see Head
restraints
Rear view mirrors see Mirrors
Rear window defroster 173
Rear window sunshade* 172
Recommended tire inflation
pressure 333
Recovery services, Stolen vehicle
(Tele Aid*) 272
Refrigerant, Air conditioning 437
Refueling 293
Regular checks 294
Remote control, SmartKey 94
Remote door unlock (Tele Aid*) 272
Replacing bulbs
Additional turn signal lamps 400
Backup lamp 401
Brake lamp 401
Fog lamps 401
Headlamps 395, 397, 399
High beam headlamps 395, 397
License plate lamps 401
Low beam headlamps 397
Parking lamps 398, 400, 401
Rear lamps 396
Side marker lamps 400, 401
