349 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
4Gas cap
is openA loss of pressure has been detected in
the fuel system. The fuel cap may not be
closed properly or the fuel system may be
leaky.Check the fuel cap (page 271).
If it is not closed properly:
Close the fuel cap.
If it is closed properly:
Have the fuel system checked by an
authorized Mercedes-Benz Center.
IRemove keyYou have forgotten to remove the
SmartKey.Remove the SmartKey from the starter
switch.
Get a new
keyNo additional code available for
SmartKey.Change the SmartKey.
.3rd brake
lampThe high mounted brake lamp is
malfunctioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
AUTO-Light
inoperativeThe light sensor is malfunctioning.
The headlamps switch on automatically.In the control system, set lamp opera-
tion to manual mode (
page 139).
Switch on the headlamps using the
exterior lamp switch.
Contact an authorized Mercedes-Benz
Center as soon as possible.
427 Index
Interior lighting 116
Delayed shut-off 142
Interior rear view mirror 42
Antiglare positions 160
Auto-dimming mirrors* 161
Interior storage spaces see
Storage compartment
J
Jack 356
Jacking up the vehicle 378
Jump starting 386K
Key, mechanical 361
Key, SmartKey
Batteries 95
Battery check lamp 95
Changing batteries 366
Factory setting 93
Locking/unlocking 32, 93
Locking/unlocking, Global setting 94
Locking/unlocking,
Selective setting 94
Loss of 95
Messages in display 349
Opening and closing
the power windows 223
Opening and closing
the tilt/sliding sunroof* 223
Positions in starter switch 32
Remote control 92
Starting the engine 46
Steering wheel lock 33
Turning off the engine 55
Unlocking, Trunk lid 95
Valet locking 99
Kickdown 155
Kilopascal 305L
Labels 398
Certification 398
Emission control information 399
Emission control
vacuum line routing 399
Lamps, exterior 368
Light sensor 349
Messages in display 349 - 353
Lamps, indicator and warning
ABS 25, 322
Battery (SmartKey) 94
Brakes 25, 324
Engine diagnostics 325, 330
Engine malfunction 25, 325–326
ESP
®25, 327
Fog lamps 109
Front passenger front
air bag off 27, 63
Fuel reserve 25, 328
High beam headlamps 25
Instrument cluster 322–330
Low beam headlamps 25
Maintenance service indicator 310
Rear fog lamp 109
Seat belt telltale 25
