379 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
F
Key
not detected
The SmartKey with KEYLESS-GO* is
not recognized while the engine is
running because:
The SmartKey with
KEYLESS-GO* is not in the vehi-
cle.
There is strong radio-frequency
interference.
Stop the vehicle in a safe location or as soon
as it is safe to do so.
Search for the SmartKey with KEYLESS-GO*.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started again af-
ter the engine is stopped.
Operate the vehicle with the SmartKey with
KEYLESS-GO* in the starter switch
Key
not detected
The SmartKey with KEYLESS-GO* is
not recognized when attempting to
start the engine with the
KEYLESS-GO start/stop button* on
the gear selector lever because:
The SmartKey with
KEYLESS-GO* is not in the vehi-
cle.
The battery in the SmartKey
with KEYLESS-GO* is not insert-
ed properly or completely dis-
charged.
Change the position of the SmartKey with
KEYLESS-GO* in the vehicle.
Make sure the batteries in the SmartKey with
KEYLESS-GO* are properly inserted
(page 395) and are not discharged
(page 110).
Start the engine with the SmartKey with
KEYLESS-GO* in the starter switch if
necessary.
454 Index
Gear shifting malfunctions 179
Kickdown 171
Manual shifting 174
One-touch gearshifting 174
Program mode selector switch 32,
173
Starting the engine 52
Transmission fluid level 279
Automatic Transmission Fluid see ATF
B
Backrest
Lumbar support 122
Multicontour seat* 122
Power seat 44
Shoulder region support 122
Backup lamp
Messages in the multifunction
display 382
Replacing bulb 398, 402
Bar 312
BAS 89
Batteries, SmartKey
Checking battery condition 105
Replacing 395Batteries, SmartKey with KEYLESS-GO*
Checking battery condition 110
Replacing 395
Batteries, Vehicle 281
Charging 417
Consumer battery 281, 389, 414
Jump starting 419
Messages in the multifunction
display 366
Starter battery 281, 414
Bead 312
Bi-Xenon headlamps* 398
Block heater (Canada only) 317
Brake Assist System see BAS
Brake lamps 398
High mounted 398
Messages in the multifunction
display 380
Brake pads
Messages in the multifunction
display 366
Brake system
Messages in the multifunction
display 370Brakes 260
BAS 89
Brake fluid 272, 445, 447
Electro-hydraulic brake system 92
High-performance brake system (AMG
vehicles only) 262
Warning lamp 335
Break-in period 258
Bulbs
Messages in the multifunction
display 380
Replacing 397
C
California retail buyers and lessees,
important notice for 11
Call priority, Tele Aid 249
Capacities and recommended
fuel/lubricants 444
Cargo area see Trunk
Carpets, cleaning 329
Catalytic converter 269
CD changer 150
CD player 150
Operating 151
