
ASSYST PLUS service interval dis-
play ..................................................... 239
Calling up the date (on-board
computer) ...................................... 239
Display message ............................ 239
ATA (anti-theft alarm system) ............65
Switching off the alarm ....................66
ATTENTION ASSIST ...........................163
Activating/deactivating (on-
board computer) ............................ 130
Display message ............................ 265
AUTO lights
Display message ............................ 271
Automatic car wash ..........................240
Automatic engine start With ECO Start/Stop function .......109
Automatic engine switch-off
Using the ECO Start/Stop func-
tion ................................................ 108
Automatic lane recognition system
see Lane Keeping Assist ................130
Automatic transmission
Changing gear yoursel f.................. 112
Display message ............................ 253
Driving tips .................................... 114
Emergency running mode ..............293
Kickdown ....................................... 114
Malfunction ................................... .293
One-touch gearshifting ..................112
Program selector button ................113
Releasing the parking lock man-
ually ............................................... 301
Selector lever positions .................111
Shift ranges ................................... 113
Trailer towing ................................. 114
Auxiliary heating ............................... 181
Display message ............................ 276
Notes ............................................. 181
Remote control .............................. 182
Setting (on-board computer) .......... 135
Auxiliary ventilation ..........................181 B
Backrest Display message ............................ 277
Bag hook ............................................ 200Ball coupling
Folding in ....................................... 237
Folding out ..................................... 234
BAS (Brake Assist) ............................... 59
BAS PLUS (Brake Assist System
Plus*) .................................................... 59
Battery Changing (auxiliary heating
remote control) .............................. 304
Changing (key )............................... 304
Charging ........................................ 322
Checking (key) ............................... 304
Check lamp (key )........................... 304
Disconnecting ................................ 321
Display message ...........253, 265, 274
Fitting the battery ..........................323
Jump-starting ................................. 323
Maintenance (vehicle) .................... 319
Reconnecting ................................. 323
Removing/fitting ........................... 322
Vehicle battery .............................. 319
Belt force limiters
Activation ......................................... 37
Belt height adjustment .......................91
Belt tensioners Activation ......................................... 37
Belt warning ......................................... 91
Blind Spot Assist ............................... 167
Activating/deactivating (on-
board computer) ............................ 130
Display message ............................ 261
Indicator lamp ................................ 280
Trailer towing ................................. 169
Warning lamp ................................. 280
BlueTEC
AdBlue ®
......................................... 335
Bonnet
Active bonnet (pedestrian protec-
tion) ............................................... 219
Bonnet catch ................................. 220
Display message ............................ 263
Opening/closing ........................... 219
Resetting the active bonnet
(pedestrian protection) after
being triggered .............................. 302
Bonnet release lever
Release leve r................................. 220 Index
5 212_AKB; 2; 4, en-GB
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G
Garage door Opening/closing (with the remote
control) .......................................... 213
Garage door opener ..........................211
Clearing the memory .....................213
Frequencies ................................... 359
Programming the remote control ...212
Gear indicator ............................ 111, 112
Gear indicator (on-board com-
puter) ................................................. .122
Gearshift program SETUP (on-board computer) ..........123
Genuine Mercedes-Benz parts .........330
Glove compartment ..........................188 H
Headlamp cleaning system ..............222
Headlamps Cleaning ......................................... 242
Cleaning system .............................. 98
Misting up ...................................... 294
Head restraints
Adjusting (front) ......................... 77, 78
Adjusting (rear) ................................ 79
Luxury .............................................. 81
NECK-PRO ....................................... 43
Removing (rear) ............................... 79
Resetting triggered NECK-PRO
head restraints .............................. 303
Heating
see Air conditioning
High-pressure cleaners ....................241
Hill start assist .................................. 106
HOLD function ................................... 151
Display message ...........253, 257, 267
HomeLink ®
see Garage door opener
Hook ................................................... 200I
Immobiliser .......................................... 65
Indicator and warning lamp Automatic child seat recognition
(malfunction) ................................. 280
Brakes (red) ................................... 284PASSENGER AIRBAG OFF
........45, 280
Reserve fuel ................................... 287
SRS .......................................... 37, 283
Thermotronic (malfunction) ...........279
Indicator and warning lamps ...........281
Coolant .......................................... 284
Engine diagnostics .........................285
Seat belt ........................................ 286
Indicator lamps
see Warning and indicator lamps
Instrument cluster ............................117
On-board computer .......................131
Overview .......................................... 27
Instrument lighting .............................27
see Instrument cluster lighting
Integrated child seat ...........................53
Intelligent Light System Display message .................... 257, 272
On-board computer .......................133
Tourist mode .................................. 133
Interior lighting
Automatic control system ................99
Delayed switch-off (on-board
computer) ...................................... 134
Emergency lighting ..........................99
Manual control ................................ .99
Reading lamp ................................... 99
Setting ambient lighting (on-board
computer) ...................................... 133
Interior motion sensor ........................67
ISOFIX child seat securing system ....51 J
Jack Operation ....................................... 315
Storage location ............................ 249
Jump-starting ..................................... 323
Jump leads ..................................... 323 K
Key ........................................................ 70
Changing the battery .....................304
Checking the battery .....................304
Convenience closing ......................102
Convenience opening ....................102
Display message ............................ 27410
Index 212_AKB; 2; 4, en-GB
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Where will I find...?
...........................248
Display messages ............................. 251
Troubleshooting ................................ 278
Locking/unlocking in an emer-
gency ................................................. 299
Resetting the active bonnet
(pedestrian protection) after trig-
gering ................................................. 302
Resetting triggered NECK-PRO
head restraints .................................. 303
Replacing batteries (key and
remote control) ................................. 303
Changing bulbs ................................. 304
Replacing the wiper blades ..............308
Flat tyre ............................................. 309
Battery ............................................... 319
Jump-starting .................................... 323
Towing and tow-starting ..................324
Fuses .................................................. 327 247Practical advice
212_AKB; 2; 4, en-GB
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Engine
Problem
Possible causes/consequences and
X
X Solutions The engine will not
start.
The HOLD function or Distronic Plus* is activated.
X
Switch off HOLD (Y page 151) or Distronic Plus (Y page 146).
X Try to start the engine again. The engine will not
start. You can hear the
starter motor operat-
ing. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
R The on-board voltage is too low because the starter battery is
too weak or discharged.
X Before the next start attempt, turn the key back to position 0
(Y page 75) in the ignition lock or press the Start/Stop but-
ton* until all the indicator lights in the instrument cluster have
gone out.
X Try to start the engine again (Y page 103). When doing so,
remember that excessively long and frequent attempts to start
the engine will drain the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine will not
start. You can hear the
starter motor operat-
ing. The reserve fuel
warning lamp is on and
the fuel gauge
shows
0. The fuel tank has been run dry.
X
Refuel the vehicle. The engine will not
start. You cannot hear
the starter motor. The on-board voltage is too low because the starter battery is too
weak or discharged.
X
Jump-start the vehicle (Y page 323).
If the engine does not start despite attempting to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. Troubleshooting
291Practical advice
* optional
212_AKB; 2; 4, en-GB
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Problem
Possible causes/consequences and
X
X Solutions You have lost a key.
X
Have the key cancelled at a Mercedes-Benz Service Centre.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. You have lost the emer-
gency key element.
X
Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating* or inte-
rior lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 319).
or
X Jump-start the vehicle (Y page 323).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the key.
The steering lock is mechanically blocked.
44
X Remove the key and reinsert it into the ignition lock. While doing
this, turn the steering wheel in both directions. The engine cannot be
started using KEYLESS
GO*. The key is in the
vehicle. A door is open. Therefore, the key cannot be detected as easily.
X
Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle using the key in the ignition lock. 44
Not vehicles with DIRECT SELECT selector lever. Troubleshooting
297Practical advice
* optional
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X
Firmly depress the parking brake and on
vehicles with automatic transmission*,
shift the transmission to position P.
X Switch off all electrical consumers (e.g.
radio, blower, etc.).
X Turn the key to 0(Y page 75) in the ignition
lock and remove it or make sure that no
ignition position has been selected with
KEYLESS GO*. In the instrument cluster, all
of the indicator lamps must be out.
X Vehicles with the battery in the engine
compartment: open the bonnet.
X Vehicles with the battery in the boot:
open the boot. X
Vehicles with a battery in the engine
compartment: release and remove
clamps ;on filter box :.
X Remove the negative terminal clamp from
the battery.
X Remove the cover from the positive termi-
nal clamp.
X Remove the positive terminal clamp from
the battery.
X Disconnect the breather hose. Removing the battery
X Disconnect the battery ( Ypage 321).
X Loosen the bolt which holds the battery in
place.
X Remove the battery. Charging and fitting the battery
G
Risk of injury
Battery acid is caustic. Avoid contact with the
skin, eyes or clothing.
Charging the battery G
Risk of injury
Only charge the battery in a well-ventilated
area. As the battery is being charged, gases
can escape and generate minor explosions.
This could injure you and other persons or
cause damage to the paintwork or acid cor-
rosion on the vehicle.
You can obtain information about battery
chargers which allow the battery to be
charged while still installed from a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. G
Risk of injury
There is a risk of acid burns during the charg-
ing process due to the gases which escape
from the battery. Do not lean over the battery
during the charging process.
! Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while still installed.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
X Vehicles with the battery in the engine
compartment: open the bonnet.
X Vehicles with the battery in the boot:
open the boot.
X Connect the battery charger by its positive
terminal and earth point in the same order
as when connecting the donor battery in 322
BatteryPractical advice
* optional
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the jump-starting procedure
(Y
page 323).
Fitting the battery X
Install the battery. To do this, follow the
steps described in "Removing the battery"
(Y page 322) in reverse order.
X Reconnect the battery (Y page 323).Reconnecting the battery
! Always connect the battery in the order
described below. Never swap the terminal
clamps. Otherwise, you may damage the
vehicle electronics.
X Switch off all electrical consumers (e.g.
radio, blower, etc.).
X Connect the positive terminal clamp and
secure the cover.
X Connect the negative terminal clamp.
X Connect the breather hose.
X On vehicles with the battery in the
engine compartment: put the filter box
back in place, then clip in and close the
retaining clamps.
Close the bonnet.
X Vehicles with the battery in the boot:
close the boot.
i If the battery power supply has been inter-
rupted (e.g. if it has been reconnected), you
must carry out the following tasks:
R set the time ( Ypage 132)
R reset the function for folding the exterior
mirrors in/out automatically* by folding
the mirrors out once ( Ypage 87) Jump-starting
If your vehicle's battery is discharged, the
engine can be jump-started from another
vehicle or from an external battery using jump
leads. Observe the following points:
R
you may only jump-start when the engine
and catalytic converter are cold.
R do not start the engine if the battery is fro-
zen. Let the battery thaw first.
R jump-starting may only be performed from
batteries with a nominal voltage of 12 V.
R only use jump leads which have a sufficient
cross-section and insulated terminal
clamps.
i Jump leads and further information about
jump-starting can be obtained from any
Mercedes-Benz Service Centre.
! Avoid repeated and lengthy starting
attempts.
Do not use a rapid-charging device to start
the engine. G
Risk of injury
There is a risk of acid burns when jump-start-
ing a vehicle due to the gases which escape
from the battery. Do not lean over the battery
while the engine is being jump-started. G
Risk of explosion
Gases escaping from the battery during jump-
starting may cause minor explosions. Avoid
creating sparks. Keep naked flames away
from the battery, and do not smoke.
Comply with safety precautions and take pro-
tective measures when handling batteries.
You will find these under "Battery" in the
index.
X Make sure that the two vehicles do not
touch.
X Depress the parking brake firmly.
X Manual transmission: engage neutral.
X Automatic transmission*: shift the trans-
mission to position P.
X Switch off all electrical consumers (e.g.
radio, blower, etc.).
X Open the bonnet (Y page 219). Jump-starting
323Practical advice
* optional
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X
Slide cover :of positive terminal ;in
the direction of the arrow .
X Connect positive terminal ;on your vehi-
cle to positive terminal =of donor battery
B using the jump lead, beginning with your
own battery.
X Start the engine of the donor vehicle and
run it at idling speed.
X Connect negative terminal ?of donor bat-
tery Bto earth point Aof your vehicle
using the jump lead, Connect donor bat-
tery Bfirst.
X Start the engine.
X First, remove the jump lead from earth
point Aand negative terminal ?, then
from positive terminal ;and positive ter-
minal =, each time disconnecting from the
battery on your own vehicle first.
X Have the battery checked at a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. Towing and tow-starting
Points to remember
G
Risk of accident
If you have the vehicle towed, you must use a
rigid towing bar if:
R the engine is not running.
R there is a brake system malfunction.
R there is a malfunction in the power supply
or the vehicle's electrical system.
The power steering and the brake force boos-
ter do not work when the engine is not run-
ning. Greater braking force will then be
required and brake pedal travel will be longer.
If necessary, depress the brake pedal with full
force.
Before towing away, make sure that the steer-
ing can be moved and is not locked.
If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your vehicle. G
Risk of accident
The vehicle is braked when the HOLD function
or Distronic Plus* is activated. Therefore, 324
Towing and tow-startingPractical advice
* optional
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