Driving and operating149driving, there is a fault in the ABS.
Control indicator j 3 99 may also
illuminate in the instrument cluster together with a corresponding
message in the Driver Information
Centre. The brake system remains
operational but without ABS
regulation.9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can no longer be steered and may
swerve.
If control indicators u, j , R 3 99
and C 3 99 illuminate, there is a fault
in the braking system. A
corresponding message also
appears in the Driver Information
Centre 3 103. Have the cause of the
fault remedied by a workshop.
Vehicle messages 3 104.
Parking brake9 Warning
Always apply parking brake firmly
without operating the release
button, and apply as firmly as
possible on a downhill or uphill
slope.
To release the parking brake, pull
the lever up slightly, press the
release button and fully lower the
lever.
To reduce the operating forces of
the parking brake, depress the
brake pedal at the same time.
Control indicator R 3 99.
Parking 3 140.
Brake assist If the brake pedal is depressed
quickly and forcefully, maximum
brake force is automatically applied
(full braking).
Maintain steady pressure on the
brake pedal for as long as full braking is required. Maximum brake force is
automatically reduced when the
brake pedal is released.
Brake assist is not available during an
Autostop.
Stop-start system 3 137.
Hill start assist
The system helps prevent unintended movement when driving away on
inclines.
When releasing the brake pedal after
stopping on an incline (with the
selector lever in a forward gear or
reverse gear), the brakes remain on
164Driving and operatingTrailer hitch
General information
Entrust retrofitting of towing
equipment to a workshop. It may be
necessary to make changes that
affect the cooling system, heat
shields or other equipment. Only use
towing equipment that has been
approved for your vehicle.
Driving characteristics and towing tips
In the case of trailers with brakes,
attach the breakaway stopping cable.
Before attaching a trailer, lubricate
the coupling ball. However, do not do so if a stabiliser, which acts on thecoupling ball, is being used to reduce
snaking movements. For trailers with
low driving stability the use of a
stabiliser is recommended.
A maximum speed of 80 km/h must
not be exceeded, even in countries
where higher speeds are permitted.If the trailer starts snaking, drive more slowly, do not attempt to correct the
steering and brake sharply if
necessary.
When driving downhill, drive in the
same gear as if driving uphill and
drive at a similar speed.
Adjust tyre pressure to the value
specified for full load 3 216.
Trailer towing
Trailer loads The permissible trailer loads are
vehicle and engine-dependent
maximum values which must not be
exceeded. The actual trailer load is the difference between the actual
gross weight of the trailer and the
actual coupling socket load with the
trailer coupled.
The permissible trailer loads are
specified in the vehicle documents. In
general, they are valid for gradients
up to max. 12%.
The permitted trailer load applies up
to the specified incline and up to an
altitude of 1000 m above sea level.Since engine power decreases as
altitude increases due to the air
becoming thinner, therefore reducing
climbing ability, the permissible gross
train weight also decreases by 10% for every 1000 m of additional
altitude. The gross train weight does
not have to be reduced when driving
on roads with slight inclines (less than 8%, e.g. motorways).
The permissible gross train weight
must not be exceeded. This weight is
specified on the identification plate
3 210.
Vertical coupling load
The vertical coupling load is the load
exerted by the trailer on the coupling
ball. It can be varied by changing the
weight distribution when loading the
trailer.
The maximum permissible vertical
coupling load is specified on the
towing equipment identification plate
and in the vehicle documents. Always aim for the maximum load, especially in the case of heavy trailers. The
vertical coupling load should never
fall below 25 kg.
166Vehicle careVehicle careGeneral Information...................167
Accessories and vehicle modifications .......................... 167
Vehicle storage ........................167
End-of-life vehicle recovery .....168
Vehicle checks ........................... 168
Performing work ......................168
Bonnet ..................................... 168
Engine oil ................................. 169
Engine air filter ........................ 170
Engine coolant ......................... 171
Power steering fluid .................171
Washer fluid ............................ 172
Brakes ..................................... 172
Brake fluid ............................... 172
Vehicle battery ......................... 173
Diesel fuel filter ........................175
Diesel fuel system bleeding .....175
Wiper blade replacement ........176
Bulb replacement .......................177
Headlights ............................... 177
Front fog lights ......................... 178
Front turn lights .......................178
Tail lights ................................. 178
Side turn lights ......................... 179Centre high-mounted brake
light ......................................... 179
Reversing light ......................... 180
Number plate light ...................181
Fog tail light ............................. 181
Interior lights ............................ 182
Instrument panel illumination ...183
Electrical system ........................183
Fuses ....................................... 183
Instrument panel fuse box .......184
Vehicle tools .............................. 187
Tools ........................................ 187
Wheels and tyres .......................188
Tyres ....................................... 188
Winter tyres ............................. 188
Tyre designations ....................188
Tyre pressure .......................... 188
Tyre pressure monitoring system .................................... 190
Tread depth ............................. 191
Changing tyre and wheel size . 192
Wheel covers ........................... 192
Tyre chains .............................. 192
Tyre repair kit .......................... 193
Wheel changing .......................196
Spare wheel ............................ 197
Jump starting ............................. 199Towing....................................... 200
Towing the vehicle ...................200
Towing another vehicle ...........201
Appearance care .......................202
Exterior care ............................ 202
Interior care ............................. 204
178Vehicle careDaytime running light with LEDs
Daytime running lights consist of
LEDs which cannot be changed.
Consult a workshop in case of a
defective LED.
Front fog lights
Access the front fog light bulb from
beneath the vehicle.
1. On left vehicle side, release retaining clip and open the accesscover.
On right vehicle side, remove the
two screws and retaining clips to
remove the access cover.
2. Detach wiring connector.
3. Rotate bulb holder anticlockwise and remove bulb.
4. Renew bulb and install bulb holder.
5. Reattach wiring connector.
6. On left vehicle side, close the access cover.
On right vehicle side, install the
access cover and replace the
two screws.
Front turn lights1. Remove bulb holder from reflector
housing by rotating anticlockwise.
2. Renew bulb.
3. Install bulb holder in reflector housing.
Tail lights
Rear brake, turn light and tail
lights
Open rear doors / tailgate to access
the tail lights.
1. Remove the three bolts (using the
tool supplied).
Vehicle care1792.Carefully pull lamp assembly from
retaining pins on the outer side
and remove.
3. Detach wiring connector from lamp assembly.
4. Rotate bulb holder anticlockwiseto separate from lamp.
5. Renew bulb.
6. Push to install the bulb holder into
the lamp, then rotate clockwise to secure.
7. Reattach wiring connector to lamp
assembly and check that it is
located correctly.
8. Replace lamp assembly into original position, ensuring that it isseated correctly on retaining pins.
9. Replace the three bolts.
Side turn lights
1. Release lamp assembly from fender by depressing clips using a
suitable tool and lift out lamp
assembly from aperture.
2. Remove bulb holder from lamp assembly by rotating
anticlockwise and renew bulb.
3. Install bulb holder in lamp assembly and install lamp
assembly into aperture.
Centre high-mounted brake
light
Rear doors 1. Open the rear doors.
2. Remove the two bolts from inside the rear doors.
186Vehicle careNo.Circuit1Battery backup (with electronic
key system)2Adaptations3Adaptations4Vehicle battery (with electronic
key system)5Additional heating and ventila‐
tion / Air conditioning system6Supplementary heating and
ventilation system7Electric exterior mirrors / Addi‐
tional adaptations8Heated exterior mirrors9Radio / Multimedia / Electric
exterior mirrors / Diagnostic
socket10Multimedia / Trailer hitch11Courtesy lights / Battery
discharge protectionNo.Circuit12Right-hand high beam / Left-
hand low beam / Sidelights /
Right-hand daytime running
light13Hazard warning flashers / Turn
lights14Central locking15Left-hand high beam / Right-
hand low beam / Tail lights /
Left-hand daytime running light16Front fog lights / Rear fog lights /
Number plate lighting17Alarm / Horn / Lighting / Wiper18Instrument cluster19Heating and ventilation system20Rear window wiper / Wind‐
screen washer pump / Horn21General battery22Reversing lights23Brake switchNo.Circuit24Fuel injection / Starter25Airbag / Steering column lock26Passenger power window27Power steering28Brake lights29Battery backup (with electronic
key system)30Service display31Cigarette lighter / Power outlet32Heating and ventilation system33Brake lights / ABS / Immobiliser34Interior lighting / Air conditioning35Starting with electronic key
system36Rear window wiper37Warning chimes38Load compartment power outlet39Driver power window
Vehicle care201Caution
Do not tow the vehicle from the
rear. The front towing eye must
only be used for towing and not
recovering a vehicle.
Caution
Activate the child locks in the rear
doors if the rear seats are
occupied.
Child locks 3 32.
Switch on ignition to permit operation
of brake lights, horn and windscreen
wipers, and move the steering wheel
slightly to release the steering wheel
lock.
Note
Depending on version, it may be
necessary to switch on the engine to
permit operation of brake lights.
Move the selector lever to neutral.
Release the parking brake.
Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
When the engine is not running,
considerably more force is needed to
brake and steer.
Switch on hazard warning flashers
3 113.
To prevent the entry of exhaust fumes
from the towing vehicle, switch on the air recirculation system 3 119 and
close the windows.
Seek the assistance of a workshop.
After towing, unscrew the towing eye
and replace cap.
Towing another vehicle
The fixed towing eye is located under the rear bumper, on the left vehicle
side.
Attach a tow rope - or better still a tow
rod - to the rear towing eye, never to
the rear axle and suspension units.
The rear towing eye must only be
used for towing and not recovering a
vehicle.
222Customer informationOperating data in the vehicleControl units process data for
operation of the vehicle.
This data includes, e.g.: ● vehicle status information (e.g. speed, movement delay, lateral
acceleration, wheel rotation rate, "seat belts fastened" display)
● ambient conditions (e.g. temperature, rain sensor,
distance sensor)
As a rule such data is transient, not
stored for longer than an operational
cycle, and only processed on board the vehicle itself. Control units often
include data storage (including the
vehicle key). This is used to allow
information to be documented
temporarily or permanently on vehicle
condition, component stress,
maintenance requirements and
technical events and errors.Depending on technical equipment
level, the data stored is as follows:
● system component operating states (e.g. fill level, tyre
pressure, battery status)
● faults and defects in important system components (e.g. lights,
brakes)
● system reactions in special driving situations (e.g. triggering
of an airbag, actuation of the
stability control systems)
● information on events damaging the vehicle
● for electric vehicles the amount of
charge in the high-voltage
battery, estimated range
In special cases (e.g. if the vehicle
has detected a malfunction), it may be
necessary to save data that would
otherwise just be volatile.
When you use services (e.g. repairs,
maintenance), the operating data
saved can be read together with the
vehicle identification number and
used when necessary. Staff working
for the service network ( e.g. garages,
manufacturers) or third parties (e.g.breakdown services) can read the
data from the vehicle. The same
applies to warranty work and quality
assurance measures.
Data is generally read via the OBD
(On-Board Diagnostics) port
prescribed by law in the vehicle. The operating data which is read out,
documents the technical condition of
the vehicle or individual components
and assists with fault diagnosis,
compliance with warranty obligations
and quality improvement. This data,
in particular information on
component stress, technical events,
operator errors and other faults, is
transmitted to the manufacturer
where appropriate, together with the
vehicle identification number. The
manufacturer is also subject to
product liability. The manufacturer
potentially also uses operating data
from vehicles for product recalls. This
data can also be used to check
customer warranty and guarantee
claims.
Fault memories in the vehicle can be
reset by a service company when
carrying out servicing or repairs or at
your request.