
The brake pressure drops gradually the more you operate the accelerator pedal. Ifthe vehicle does not start off within 2 seconds, it starts to roll back.
The HHC is active from a 5% slope if the driver's door is closed. HHC is only ever active on slopes when in forward or reverse start off. When driving downhill, it isinactive.
Parking aid
Introduction
This chapter contains information on the following subjects:
Function
113
Activation/deactivation
114WARNING■ The parking aid is not a substitute for the driver paying proper attention and
it is always the driver's responsibility to take care when reversing the vehicle
or carrying out similar manoeuvres. Pay particular attention to small children
and animals as they may not be recognised by the system sensors.■
Before reversing, you should make sure that there are no small obstacles,
such as rocks, thin posts, trailer drawbars etc. behind your vehicle. Such ob-
stacles may not be recognised by the system sensors.
■
Under certain circumstances, surfaces of certain objects and types of cloth-
ing cannot reflect the system signals. Thus, these objects or people who wear
such clothing are not recognised by the System sensors.
■
External sound sources can have a detrimental effect on the system. Under
adverse conditions, this may cause objects or people to not be recognised by
the system.
CAUTION
■ If a continuous tone sounds for about 3 seconds after activating the system and
there is no obstacle close to your car, this indicates a system fault. Have the fault
rectified by a specialist garage.■
The sensors must be kept clean (free of ice, etc.) to enable the system to oper-
ate properly.
■ The system function may be limited under adverse weather conditions (heavy
rain, water vapour, very low or high temperatures etc.).■
Additionally installed modules such as bicycle carriers can impair the function of
the parking aid.
Function
Fig. 101
Range of sensors
First read and observe the introductory information and safety warn-
ings on page 113.
The parking aid (hereafter referred to solely as system) only works when the igni- tion is switched on.
The system supports the driver via audible signals and the display on the radio or
the factory-installed navigation system when parking and manoeuvring » Radio
user guide, Navigation system user guide.
The system uses ultrasound waves to calculate the distance between the bumper
and an obstacle. The ultrasonic sensors are integrated in the rear bumper.
Explanation of graphic - range of sensors in the vicinity of the vehicle
Range » Fig. 101Range of sensors a)A160 cmB60 cma)
These are only the approximate ranges of sensors.
The interval between the acoustic signals becomes shorter as the clearance is re- duced. A continuous tone sounds from a distance of approx. 30 cm - danger area.
From this moment on do not continue reversing!
113Assist systems

CAUTION■When washing the car by hand, protect your hands and arms from sharp-edged
metal parts (e.g. when cleaning the underfloor, the inside of the wheel housings
or the wheel trims, etc.) - There is a risk of cuts!■
Only apply slight pressure when cleaning the vehicle's paintwork.
Automatic car wash systems
First read and observe the introductory information and safety warn-
ings
on page 152.
The usual precautionary measures must be taken before washing the vehicle in
an automatic car wash system (e.g. closing the windows and the sliding/tilting
roof etc.).
If your vehicle is fitted with any particular attached parts, such as a spoiler, roof
rack system, two-way radio aerial etc., it is best to consult the operator of the car
wash system beforehand.
After an automatic wash with wax treatment, the lips of the wipers should be cleaned with cleaning agents specially designed for the purpose, and then de-
greased.
WARNINGFold in the exterior mirrors to prevent damage before washing the vehicle in
an automatic car wash system.
Washing with a high-pressure cleaner
First read and observe the introductory information and safety warn-
ings
on page 152.
When washing the vehicle with a high-pressure cleaner, the instructions for use
of the equipment must be observed. This applies in particular to the pressure
used and to the spraying distance .
Maintain a sufficiently large distance to the parking aid sensors and soft materials
such as rubber hoses or insulation material.
WARNINGNever use circular spray nozzles or dirt cutters!
CAUTION
■ If washing the vehicle in the winter using a hose or high-pressure cleaner, en-
sure that the jet of water is not aimed directly at the locking cylinders or the
door/panel joints – risk of freezing!■
To avoid damaging the parking aid sensors while cleaning with high-pressure
cleaners or steam jets, the sensors must only be directly sprayed for short periods
while a minimum distance of 10 cm must be observed.
■
The temperature of the water used for cleaning must not exceed 60 °C – risk of
damaging the vehicle.
■
See also Washing cars with decorative films using a high-pressure clean-
er » page 155 .
Taking care of your vehicle exterior
Introduction
This chapter contains information on the following subjects:
Taking care of your vehicle's paintwork
154
Plastic parts
154
Rubber seals
155
Chrome parts
155
Decorative films
155
Windows and exterior mirrors
155
Headlight lenses
156
Door lock cylinders
156
Cavity protection
156
Wheels
156
Underbody protection
157
Regular and proper care help to retain the efficiency and value of your vehicle. It
may also be one of the requirements for the acceptance of warranty claims relat- ing to corrosion damage and paint defects on the bodywork.
153Vehicle care

WARNING“Quick-charging” the vehicle battery is dangerous and requires a special
charger and specialist knowledge.
CAUTION
On vehicles with the START/STOP system, the pole terminal of the charger must
not be connected directly to the negative terminal of the vehicle battery, but only
to the engine earth » page 191, Jump-starting in vehicles with the START-STOP
system .
Note
We therefore recommend that vehicle batteries be rapid charged by a specialist
garage.
Replacing
First read and observe the introductory information and safety warn-
ings
on page 171.
When replacing a battery, the new vehicle battery must have the same capacity,
voltage, amperage and be the same size. Suitable vehicle battery types can be
purchased from a specialist garage.
We recommend having the battery replaced by a specialist garage, where the
new vehicle battery will be installed properly and the original battery will be dis-
posed of in accordance with national regulations.
Disconnecting and reconnecting
First read and observe the introductory information and safety warn-
ings
on page 171.
On disconnecting and reconnecting the vehicle battery, the following functions
are initially deactivated or are no longer able to operate fault-free:
OperationOperating measureEnter the radio/navigation system code num-
ber» User manual of the radio
or » user manual of the naviga-
tion systemSetting the clock» page 13Data in the multifunction display are deleted.» page 25
Note
We recommend having the vehicle checked by a specialist garage in order to en-
sure full functionality of all electrical systems.
Automatic load deactivation
First read and observe the introductory information and safety warn-ings
on page 171.
The vehicle voltage control unit automatically prevents the battery from discharg-
ing when the battery is put under high levels of strain. This manifests itself by the
following.
› The idling speed is raised to allow the generator to deliver more electricity to
the electrical system.
› Where necessary, large convenience consumers such as seat heaters and rear
window heaters have their power limited or are shut off completely in the event
of an emergency.
CAUTION
■ Despite such intervention by the vehicle electric system management, the vehi-
cle battery may be drained. For example, when the ignition is switched on a long
time with the engine turned off or the side or parking lights are turned on during longer parking.■
Consumers that are supplied via a 12-V power socket can cause the vehicle bat-
tery to discharge when the ignition is switched off.
Note
Driving comfort is not impaired by consumers being deactivated. The driver is of-
ten not aware of it having taken place.
174General Maintenance

›Reinsert the cover into the dash panel in the opposite direction to the arrow
such that the guide pins are guided into the dash panel openings.
Carefully push the cover in.
Assignment of the fuses in the dash panel
Fig. 166
Schematic representation of the fuse box for vehicles with left-
hand steering/right-hand steering
First read and observe the introductory information and safety warn-ings
on page 197.
No.Power consumer1S-contact2START - STOP3Instrument cluster, headlight range adjustment, telephone, oil level
sensor, diagnostic port4Control unit for ABS/ESC, steering angle sensor strip with switches5Petrol engine: Speed regulating system6Reversing light (manual gearbox)7Ignition, engine control unit, automatic gearbox8Brake pedal switch, clutch switch, engine cooling fan9Operating controls for the heating, electronic control unit for air condi-
tioning system, park distance control, window lift, engine cooling fan, heated washer nozzles10DC-DC converter11Mirror adjustmentNo.Power consumer12Control unit for trailer detection13Electronic control unit for automatic gearbox, selector lever of the au-tomatic gearbox14Headlight beam control15Not assigned16Power steering, speed sensor, engine control unit, control unit for fuel
pump17Daytime running lights/radio for vehicles with START-STOP18Mirror heater19Ignition lock input20Engine control unit, electronic control unit for fuel pump, fuel pump21Reversing lamp (automatic gearbox), fog lights with the function
CORNER
22
Operating controls for the heating, electronic control unit for air condi- tioning system, telephone, instrument cluster, steering angle sender,
multi-function steering wheel, ignition key removal lock, diagnostic
port23Interior lighting, storage compartment and luggage compartment, side
lights24Central control unit25Not assigned26Rear window wiper27Not assigned28Petrol engine: Purge valve, PTC heater29Injection, coolant pump30Fuel pump, ignition system, cruise control31Lambda probe32High pressure fuel pump, pressure valve33Engine control unit34Engine control unit, vacuum pump35Switch illumination, number plate light, parking light36Main beam37Rear fog light, DC-DC converter38Fog lights 198Do-it-yourself

No.Power consumer39Air blower for heating40Not assigned41Heated front seats42Rear window heater43Horn44Windscreen wipers45Boot lid lock, central locking system46Alarm47Cigarette lighter, power socket in the luggage compartment48ABS49Turn signal lights, brake lights50DC-DC converter, radio51Electric windows (driver's window and rear left window)52Electric windows (front passenger's window and rear right)53Windscreen washer54START-STOP instrument cluster, steering wheel module, multi-function
steering wheel55Control unit for automatic gearbox56Headlight cleaning system57Low beam on the left58Low beam on the right
Fuses in the engine compartment
Fig. 167
Vehicle battery: Cover for the
fuse box (variant 1)
Fig. 168
Vehicle battery: Cover for the
fuse box (variant 2)
First read and observe the introductory information and safety warn-
ings on page 197.
Replacing fuses
›
Press the lock buttons on the cover together simultaneously in the direction of
the arrow
1
» Fig. 167 or » Fig. 168 .
›
Remove the cover in the direction of the arrow
2
.
›
Replace the appropriate fuse.
›
Place the cover on top of the fuse box.
›
Push in the interlocks on the cover and lock.
The cover must engage firmly.
199Fuses and light bulbs

Side airbag138
Snow chains181
Spare wheel179
Speedometer11
See speedometer11
Speed symbol See Wheels
178
Spoiler151
START-STOP116
Manually activating/deactivating the system117
Operating conditions of the system117
Starting/shutting down the engine116
Starting and stopping the engine with the key97
Starting engine Jump-starting
189
Starting the engine Jump-starting
190
Key98
START STOP Information messages
118
Jump-starting191
Steering force assistance97
Steering wheel96
Storage compartment in centre console58
Storage compartment on the passenger side63
Storage compartments56
Storage compartments in the boot69
Storage compartments in the doors57
Storage pockets on the front seats64
sun roof48
sunshade48
Sun visors47
Switch See Ignition
98
Switching off the engine99
Switch light on/off41
T
Taking care of the vehicle Natural leather
158
Seat belts159
Taking care of your vehicle Automatic car wash system
153
Cavity protection156
Chrome parts155
Cleaning the wheels156
Decorative films155
Door lock cylinders156
Headlight lenses156
High-pressure cleaner153
Plastic parts154
Polishing the paintwork154
Rubber seals155
Taking care of the interior157
Taking care of your vehicle exterior153
Washing152
Washing by hand152
Wash system153
Wax treatment154
Taking care of your vehicles Fabric covers
159
TCS Operation
112
Technical data207
Telephone85
Temporary spare wheel179
Tiptronic103
Tools183
TOP TETHER146
Towing191
Towing a trailer119
Towing device Description
119
Drawbar load119
Use and care122
Towing eye Front192
Rear192
Towing protection36
Traction Control System (TCS)112
Trailer119, 123
13-pin power socket124
driving with a trailer124
Loading123
Safety eye124
Transport Luggage compartment
64
Roof rack system74
Transporting children safely142
Turn signal43
Turn signal system Indicator light
20
two-way radio systems85
Type plate207
Tyre inflation pressure Indicator light
20
Tyre load-bearing capacity See Wheels
177
Tyre pressure monitor Setting
178
Tyre repair Check pressure
189
Preparations188
Sealing and inflating the tyre188
Tyres175
Inflation pressure176
New177
See Wheels177
Sizes176
Tyre wear indicator176
U
Underbody protection
157
Unleaded petrol110
218Index