
07 During your journey
Towing and recovery 
07
304
Towing
Find out the statutory maximum speed limit for
towing before towing begins.
1. Unlock the steering lock by inserting the
remote control key in the ignition switch
and giving a long press on the START/
STOP ENGINE button - key position II is
activated, see page 78 for more informa-
tion on key positions.
2. The remote control key must remain in the
ignition switch while the car is being towed.
3. Keep the towline taut when the towing
vehicle reduces speed by holding your foot
gently pressed on the brake pedal -
thereby avoiding unnecessary jerking.
4. Be prepared to brake to stop.
WARNING
•Check that the steering lock is unlocked
before towing.
•The remote control key must be in key
position II - in position I all airbags are
deactivated.
•Never remove the remote control key
from the ignition switch when the car is
being towed.
WARNING
The brake servo and power steering do not
work when the engine is switched off - the
brake pedal needs to be depressed
about 5 times more heavily and the steering
is considerably heavier than normal.
Manual gearboxPrior to towing:
–Move gear lever into neutral and release
the parking brake.
Automatic gearbox Geartronic
IMPORTANT
Note that the car must always be towed with
the wheels rolling forward.
•Cars with automatic gearbox must not
be towed at speeds above 80 km/h or
further than 80 km.
Prior to towing:
–
Move the gear selector to position N and
release the parking brake.
Automatic gearbox PowershiftThe model with Powershift transmission
should not be towed as it is dependent on the
engine running in order to receive sufficientlubrication. If towing still has to take place, the
route must be as short as possible and then
with very low speed.
In the event of uncertainty as to whether or not
the car is equipped with Powershift transmis-
sion, this can be verified by checking the des-
ignation on the transmission's label under the
bonnet - see page 370. The designa-
tion ”MPS6” means that it is Powershift – trans-
mission otherwise it is Geartronic automatic
transmission.
IMPORTANT
Avoid towing.
•However, the car can be towed for a
short distance at low speed to move it
from a dangerous position - not further
than 10 km and not faster than
10 km/h. Note that the car must always
be towed with the wheels rolling for-
ward.
•In the event of moving a longer distance
than 10 km, the car must be transported
with the drive wheels raised from the
road - professional recovery is recom-
mended.
Prior to towing:
–
Move the gear selector to position N and
release the parking brake.
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09 Maintenance and service
 Engine compartment09
329
Turn the handle about 20-25 degrees
clockwise. You will hear when the catch
releases.
Move the catch to the left and open the
bonnet. (The catch hook is located
between the headlamp and grille, see illus-
tration.)
WARNING
Check that the bonnet locks properly when
closed.
Engine compartment, overview
The appearance of the engine compartment may
vary depending on engine variant.
Coolant expansion tank
Power steering fluid reservoir
Engine oil dipstick1
Radiator
Filling engine oil
Reservoir for brake and clutch fluid
(located on the driver's side)
Battery
Relay and fuse box
Filling washer fluid
Air filter
WARNING
The ignition system has very high voltage
and output. The voltage in the ignition sys-
tem is highly dangerous. The remote control
key must always be in 0 position when work
is being done in the engine compartment,
see page 78.
Do not touch the spark plugs or ignition coil
when the remote control key is in II position
or when the engine is hot.
Checking the engine oil
1Engines with electronic oil level sensor have no dipstick (5-cyl. diesel).
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09 Maintenance and service
Lamps 09
336
3. (Second illustration)
 Detach the headlamp connector by
pressing down the clip with your thumb.
 At the same time, guide out the con-
nector with your other hand.
4. Lift out the headlamp and place it on a soft
surface to avoid scratching the lens.
5. Replace the bulb in question.
Securing the headlamp
1. Plug in the connector, a clicking sound
should be heard.
2. Reinstall the headlamp and locking pins.
The short pin is fitted closest to the grille.
Check that they are correctly inserted.
3. Check the lighting.The headlamp must be mounted and the con-
nector correctly installed before the lighting is
switched on or the remote control key is
inserted into the ignition switch.
Removing the cover
Before starting to replace a bulb, see
page 335.
1. Unscrew the cover's four screws with the
tool (1) in the tool kit, see page 310. They
should not be detached completely.
(3 - 4 turns are sufficient.)
IMPORTANT
Use the tool in the toolkit to remove and
attach this correctly.
2. Slide the cover to one side.
3. Remove the cover.
Reinstall the cover in reverse order.
Dipped beam, halogen
1. Detach the headlamp, see page 335.
2. Remove the cover.
3. Unplug the connector from the bulb.
4. Detach the bulb by pulling it straight out.
5. The guide pin on the lamp should be
straight up when it is fitted and a clicking
sound should be heard when it clicks into
place.
Reinstall the parts in reverse order.
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09 Maintenance and service
 Wiper blades and washer fluid09
341 Wiper blades
Service position
Wiper blades in service position.
In order to change, clean or lift the wiper blades
(for scraping off ice from the windscreen, for
example) they must be in service position.
IMPORTANT
Before placing the wiper blades in the serv-
ice position, make sure that they are not fro-
zen down.
1. Insert the remote control key in the ignition
switch1 and briefly press the START/
STOP ENGINE button to set the car's elec-trical system to key position I. (For detailed
information on key positions, see page 78.)
2.
Briefly press the START/STOP ENGINE
button again to set the car’s electrical sys-
tem in key position 0.
3. Within 3 seconds, move the right stalk
switch up and hold it in position for
approx. 1 second.
> The wipers then move to standing
straight up.
The wipers return to their starting position
when you briefly press the START/STOP
ENGINE button to set the car’s electrical sys-
tem to key position I (or when the car is
started).
IMPORTANT
If the wiper arms in service position have
been folded up from the windscreen, they
must be folded back down onto the wind-
screen before the wipers are allowed to
return to their starting position. This is to
avoid scraping the paint on the bonnet.
NOTE
Once the wiper arms have been in service
position, the wipers must be activated and
deactivated before service position can be
used again.
Replacing the wiper blades
1Not necessary in cars with Keyless function.
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09 Maintenance and service
 Battery09
345 Symbols on the battery
Use protective goggles.
Further information in the
owner's manual.
Store the battery out of
the reach of children.
The battery contains cor-
rosive acid.
Avoid sparks and naked
flames.
Risk of explosion.
Must be taken for recy-
cling.
NOTE
An expended battery must be recycled in an
environmentally responsible manner - it
contains lead.
Replacing the main battery
RemovalFirst of all: Take the remote control key from
the ignition switch and wait at least 5 minutes
before any electrical connections are touched
- this is because the car's electrical system
needs to store the necessary information to
control modules.
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09 Maintenance and service
Fuses 09
356* Option/accessory, for more information, see Introduction.
Box AFunctionA
--
Infotainment control module5
Audio control unit (ampli-
fier)*
Digital radio*; TV*10
Audio15
Telematics*; Bluetooth*5
--
Sunroof*; Interior lighting
roof; Climate sensor*;
Damper motors, air intake5
12 V socket, tunnel console15
Seat heating, rear right*15
Seat heating, rear left*15
--
Seat heating (passenger
side)15
Seat heating (driver's side)15
Box AFunctionA
Parking assistance*; Park-
ing camera*; Towbar control
module *
BLIS*5
AWD control module*15
Active chassis Four-C*10
Box BFunctionA
Rear window wiper15
--
Interior lighting; Driver's
door control panel, power
windows; Power seats,
front*; Remote controlled
garage door opener*7.5
Information display (DIM)5
Adaptive cruise control,
ACC*; collision warning sys-
tem*10
Interior lighting; Rain sensor7.5
Steering wheel module7.5
Box BFunctionA
Central locking system, fuel
filler flap10
Rear window washer15
Windscreen washers15
Unlocking, tailgate10
Folding head restraint*10
Fuel pump20
Movement detector alarm*;
Climate panel5
Steering lock15
Siren alarm*; Data link con-
nector OBDII5
--
Airbags10
Collision warning system*5
Accelerator pedal sensor,
PTC element air preheater*;
Dimming, interior rearview
mirror*; Seat heating, rear*7.5
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10 Specifications
Type approval 
10
392* Option/accessory, for more information, see Introduction.
Remote control key system
Lock system, standard
Country
EU, China
Keyless lock system (Keyless drive)
Country
EU
Korea
Country
China
Hong Kong
Radar system
Country
Singapore
IDA: Infocomm Development
Authority of Singapore.
Brazil
Sensors, tyre pressure monitoring -
TPMS (Tyre Pressure Monitoring
System)*
Country
Brazil
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11 Alphabetical Index
11
409
Battery.............................................344, 391
maintenance....................................... 344
remote control ................................... 280
remote control key/PCC....................... 51
start assistance................................... 120
symbols on the battery....................... 345
warning symbols................................. 345
Bioethanol E85........................................ 289
Blind spot (BLIS)...................................... 194
BLIS......................................................... 194
Bluetooth
 Ÿ 
handsfree ........................................... 262
media ................................................. 259
microphone off ..................................265
streaming audio ................................. 259
transfer call to mobile ........................ 265
Bonnet, opening...................................... 328
Brake and clutch fluid..............................333
Brake light.................................................. 91
Brakes...................................................... 135
anti-lock braking system, ABS........... 135
brake light............................................. 91
brake system...................................... 135
electric parking brake......................... 137
Emergency Brake Assistance, EBA ... 135
emergency brake lights........................ 91filling brake fluid.................................. 334
handbrake........................................... 137
symbols in the combined instrument
panel...................................................136
Bulbs, see Lighting.................................. 335
C
Calls
incoming............................................. 264
operation............................................. 264
Camera sensor................................169, 178
Car care................................................... 361
Car care, leather upholstery.................... 363
Cargo area
cargo cover......................................... 296
lighting.................................................. 93
loading................................................292
mounting points.................................. 293
safety grille.......................................... 296
safety net............................................ 295
Cargo cover............................................. 296
Car upholstery......................................... 363
Car wash.................................................. 361Catalytic converter................................... 288
recovery..............................................305
CD ........................................................... 252
Centre console........................................ 202
Chassis settings......................................226
Checking and topping up the coolant..... 332
Checking the engine oil level................... 329
Children..................................................... 31
child safety locks.................................. 38
child seats and side airbags................. 24
location in the car.................................31
safety.................................................... 31
Child safety locks...................................... 62
Child seat................................................... 31
Child seats................................................. 31
integrated two-stage booster cushion. 36
ISOFIX fixture system for child seats. . . 38
recommended...................................... 32
size classes for child seats with the ISO-
FIX fixture system................................. 38
upper mounting points for child seats. . 41
Cigarette lighter socket............................ 228
City Safety™............................................ 168
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