Page 399 of 521

398 Practical hintsWhat to do if …Symbol messagesDisplay symbol
Display messages
Possible cause/consequence
Possible solution
#
Low voltage
Switch off
consumers
The battery has insufficient voltage.
Turn off unnecessary electrical con-
sumers.
Visit workshop
The battery was charged with a battery
charger or jump started.
Have the battery checked at a service
station.
The battery is no longer charging.
Possible causes:
alternator malfunctioning
broken poly-V-belt
Do not forget that the brake system re-
quires electrical energy and may be oper-
ating with restricted capability.
Considerably greater brake pedal force is
required and the stopping distance is in-
creased.
Stop immediately in a safe location or
as soon as it is safe to do so and
check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise
the engine will overheat due to an in-
operative water pump which may re-
sult in damage to the engine. Notify
an authorized Mercedes-Benz Center.
If it is intact:
Drive immediately to the nearest au-
thorized Mercedes-Benz Center. Ad-
just driving to be consistent with
reduced braking responsiveness.
Page 400 of 521

399 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
#
Battery/Alternator
Stop vehicle
The battery is malfunctioning.
The electrohydraulic brake system re-
quires electrical energy and therefore has
only limited operation. Considerably
greater brake pedal force is required and
the stopping distance is increased.
Stop the vehicle in a safe location as
soon as it is safe to do so. Adjust driv-
ing to be consistent with reduced
braking responsiveness.
Notify an authorized Mercedes-Benz
Center.
Low voltage
Start engine
The battery has insufficient voltage.
Start the engine (
page 50).
Malfunction
Electrical consumers
switched off
The consumer battery has insufficient
voltage and can no longer supply the con-
venience functions such as seat ventila-
tion*.
The electrical consumers will come back
online as soon as on-board voltage is suf-
ficient.
(
Backrest, right rear
not locked
The rear seat backrest is not engaged.
Adjust the rear seat backrest until it is
fully engaged in position.
Backrest, left rear
not locked
The rear seat backrest is not engaged.
Adjust the rear seat backrest until it is
fully engaged in position.
Page 411 of 521

410 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
Y
Hood open
You are driving with the hood open.
Close the hood (
page 319).
F
Key
Check battery
The SmartKey with KEYLESS-GO* batter-
ies are discharged.
Change the batteries (
page 431).
Key
not recognized
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running
because
the SmartKey with KEYLESS-GO* is
not in the vehicle
there is strong radio-frequency inter-
ference
Stop the vehicle in a safe location as
soon as it is safe to do so.
Search for the SmartKey.
Otherwise the vehicle cannot be cen-
trally locked nor can the engine be
started again after the engine is
stopped.
Key
not recognized
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the SmartKey
in the vehicle.
Operate the vehicle with the
SmartKey in the starter switch if nec-
essary.
Key
still in vehicle
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the SmartKey out of the vehicle.
Keyless Go
Check system
The KEYLESS-GO* system is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 452 of 521

451 Practical hints
Batteries
Disconnecting the battery
Depress parking brake firmly or move
gear selector lever to positionP.
Turn off all electrical consumers.
Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Press the start/stop button until
the engine shuts off.
Open the driver’s door.
Open the trunk.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the SmartKey is in the starter switch.
Otherwise the alternator and other
electronic components could be se-
verely damaged.
Have the battery checked regularly by
an authorized Mercedes-Benz Center.
Refer to Maintenance Booklet for main-
tenance intervals or contact an autho-
rized Mercedes-Benz Center for further
information.Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
Warning!
G
The electrohydraulic brake system requires
electrical power to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. The same applies if
battery is disconnected. To brake, the driver
must then apply significantly greater brake
pedal pressure and depress the pedal much
further to obtain the expected braking ef-
fect. If necessary, apply full pressure to the
brake pedal. Brakes may only be applied to
the front wheels. Stopping distance is in-
creased! Adjust your driving style according-
ly. For more information, refer to
“Electrohydraulic brake system”
(page 97).
Warning!
G
With a disconnected battery
you will no longer be able to turn the
SmartKey in the starter switch and
pressing the KEYLESS-GO* start/stop
button on the gear selector lever will
have no effect
the gear selector lever will remain
locked in positionP
Page 457 of 521
456 Practical hintsJump starting
Start engine of the vehicle with the
charged battery and run at idle speed.
Connect negative terminals4 and2
of the batteries with the jumper cable.
Clamp cable to charged battery4
first.
Start the engine of the disabled vehi-
cle.Now you can again turn on the electrical
consumers. Do not turn on the lights under
any circumstances.
Remove the jumper cables first from
negative terminals2 and4 and then
from positive terminals1 and3.
Now you can turn on the lights.
Have the battery checked at the near-
est authorized Mercedes-Benz Center.
iThe message
Malfunction - electric
consumers switched off
may appear
in the instrument cluster. It will disap-
pear as soon as the battery is suffi-
ciently charged.
!Do not tow-start the vehicle.
Page 499 of 521

498 Technical termsTele Aid System
(T
elematic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Telematics*
A combination of the terms “telecom-
munications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.TIN
(T
ire I
dentification N
umber)
(
page 355)
Tire load rating
(page 355)
Tire ply composition and material used
(page 355)
Tire speed rating
(page 356)
TPMS
(page 339)
Traction
(page 356)
Tread
(page 356)
Treadwear indicators
(page 356)
Uniform Tire Quality Grading Standards
(page 356)Vehicle capacity weight
(
page 356)
Vehicle level control*
The ground clearance of the vehicle is
automatically controlled according to a
selected setting and speed.The driver
can set the ground clearance manually
for example on very rough roads.
Vehicles Maintenance System
(U.S. vehicles)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Vehicle Main-
tenance System in your vehicle tracks
distance driven and the time elapsed
since your last maintenance service,
calculates other maintenance service
work required, and calls for the next
maintenance service accordingly.
Vehicle maximum load on the tire
(page 356)
Page 503 of 521

502 Index
Gear shifting malfunctions 196
Kickdown 186
Kickdown, Manual shift program
E55AMG 195
Manual (One-touch) gearshifting 190
Manual shift program E 55 AMG 193
Shift program mode selector
switch 189
Shift program mode selector switch,
Manual shift program
E55AMG 193
Starting engine 50
Steering wheel gearshift control
one-touch gearshifting
E55AMG 191
Winter program mode 189
B
Backrest 271
Seat 41
Seat, multicontour 134
Backup lamps
Messages in display 412
Replacing bulbs 433
Bar 354
BAS 94, 493Batteries, SmartKey
Changing 431, 432
Checking battery condition 110, 116
Batteries, SmartKey with KEYLESS-GO*
Changing 431, 432
Checking battery condition 116
Batteries, Vehicle
Charging 452
Disconnecting 451
Installing 452
Jump starting 454
Messages in display 389, 398, 399
Reconnecting 453
Removing 452
Bead 354
Beverage holder see Cup holders
Bi-Xenon headlamps* see Headlamps
Bleeding the fuel system 449
Block heater* (Canada only) 359
Brake Assist System see BAS
Brake fluid
Checking 318
Messages in display 402Brake lamp
Cleaning lenses 367
Messages in display 412
Replacing bulbs 433
Brake pads
Message in display 400
Brakes 304
Warning lamp 376
Break-in period 302
Bulbs see Replacing bulbs
C
CAC 493
California retail buyers and lessees, impor-
tant notice for 11
Can holder see Cup holders
CAN system 493
Capacities and recommended
fuel/lubricants 484
Cargo area see Trunk
Cargo tie-down rings 275
Carpets, cleaning 371
Catalytic converter 312
CD player 160
Page 506 of 521

505 Index
Drive-Dynamic seat* with multicontour
features 134
Massage function 135
Driving
Abroad 311
Hydroplaning 307
In winter 309
Instructions 47, 303
Problems 58
Safety systems 92
Through standing water 310
With Distronic* 257
Driving safety systems
4MATIC 100
ABS 92
BAS 94
Electrohydraulic brake system 97
ESP
®
94, 494
E
Easy-entry/exit feature 43, 175
Electrical fuses see Fuses
Electrical system, Technical data 481Electrohydraulic brake system 494
Activating/deactivating 98
Driving hints 99
Messages in display 400, 401
Self-check 99
Warning lamp 97
Electronic Stability Program see
ESP
®
94, 494
Emergency calls
Tele Aid calls 287
Emergency operation (Limp Home
Mode) 196
Emergency operations 427
Fuel filler flap 428
Gear selector lever, Unlocking 428
Locking/unlocking the vehicle 426
Remote door unlock 292
Tilt/sliding sunroof* or tilt/sliding pan-
el*, Manual operation 429
Trunk lid, Releasing from inside 127
Trunk lid, Unlocking 427
Emergency tensioning device see ETDEmergency, In case of
Battery, Jump starting 454
First aid kit 422
Flat tire, changing 441
Fuses
Hazard warning flasher 146
Instrument cluster, Indicator
lamps 374, 375, 376, 377, 378,
379, 380, 381, 383
Roadside Assistance 12
Towing the vehicle 457
Emission control 313
Emission control information label 468
Emission control system warranties 10
Emission control vacuum line routing dia-
gram label 468