174Driving and operatingTo reduce the operating forces ofthe parking brake, depress the
brake pedal at the same time.
Control indicator R 3 105.
Electric parking brake
Applying when vehicle is stationary
9 Warning
Pull switch m for a minimum of
one second until control indicator
m illuminates constantly and
electric parking brake is applied
3 105. The electric parking brake
operates automatically with
adequate force.
Before leaving the vehicle, check
the electric parking brake status.
Control indicator m 3 105.
The electric parking brake can always
be activated, even if the ignition is off.
Do not operate electric parking brake
system too often without engine
running as this will discharge the vehicle battery.
Releasing
Switch on ignition. Keep brake pedal
depressed and then push switch m.
Drive away function Vehicles with manual transmission:
Depressing the clutch pedal and then
slightly releasing the clutch pedal and slightly depressing the accelerator
pedal releases the electric parking
brake automatically. This is not
possible when switch m is pulled at
the same time.
Vehicles with automatic transmission: Engaging D and then depressing the
accelerator pedal releases the
electric parking brake automatically.
This is not possible when switch m is
pulled at the same time.
Dynamic braking when vehicle is
moving
When the vehicle is moving and
switch m is kept pulled, the electric
parking brake system will decelerate
the vehicle, but will not apply
statically.
As soon as switch m is released,
dynamic braking will be stopped.
Automatic applying
If the vehicle is equipped with
Automatic transmission and Adaptive cruise control is active, electric
parking brake is applied automatically when vehicle is stopped by the
system for more than two minutes.
Parking brake is released
automatically after moving off.
178Driving and operating● Antilock Brake System (ABS)with cornering brake control
(CBC)
● Automatic transmission
SPORT mode
The settings of the systems are
adapted to a sportier driving style:
● Damping of shock absorbers reacts more stiffly to providebetter contact with the road
surface.
● The engine reacts more quickly to the accelerator pedal.
● Steering support is reduced.
● Engine torque of All-wheel drive is distributed more to the rear
axle.
● Shift points of automatic transmission occur later.
● Depending on the instrument cluster the colouring of the
display will be adapted.
TOUR mode
The settings of the systems are
adapted to a comfort driving style:
● Damping of shock absorbers reacts more softly.
● Accelerator pedal reacts with standard settings.
● Steering support is in standardmode.
● Engine torque of All-wheel drive is distributed mainly to the front
axle.
● Shift points of automatic transmission occur in a comfort
mode.
NORMAL mode
All settings of the systems are
adapted to standard values.
Drive mode control
Within each manually selected driving mode SPORT, TOUR or NORMAL,
the Drive Mode Control (DMC)
detects and analyses continuously the real driving characteristic,
responses by the driver, and the
active dynamic state of the vehicle. If
necessary, the control unit of DMC
automatically changes the settings
within the selected driving mode or, when recognising greater variations,
the driving mode is changed for the
length of variation.
Driving and operating179If, for example, NORMAL mode is
selected and DMC detects a sporty
driving behaviour, DMC changes
several settings of the Normal mode
into sporty settings. The DMC
changes to SPORT mode in case of
very sporty driving behaviour.
If, for another example, TOUR mode
is selected and whilst driving on a
winding road a sudden hard brake is
necessary, DMC will detect the
dynamic vehicle condition and
changes the settings for suspension
to SPORT mode to increase vehicle
stability.
When the driving characteristic or the
dynamic vehicle state returns to the
former state, DMC will change the
settings to the preselected driving
mode.
Personalised settings in SPORT
mode
The driver can select the functions of
the SPORT mode when SPORT is
pressed.
Select the relevant settings in
Settings , I Sport Mode in the Colour-
Info-Display.Colour-Info-Display 3 117.
Vehicle personalisation 3 121.
Flex Ride - VXR Version The VXR Version of Flex Ride system
works in the same way as the
standard Flex Ride system with the
difference that the modes have a
more sporty characteristic.VXR Flex Ride driving system allows
the driver to select between three
driving modes:
● VXR mode: press VXR, LED
illuminates.
● SPORT mode: press SPORT,
LED illuminates.
● NORMAL mode: neither SPORT
nor VXR is pressed, no LED
illuminates.
Deactivate SPORT mode and VXR
mode by pressing corresponding
button once more.
In each driving mode VXR Flex Ride
networks the following electronic
systems:
● Continuous Damping Control
● Accelerator Pedal Control
● Steering Control
● All-wheel drive
● Electronic Stability Control (ESC)
● Antilock Brake System (ABS) with cornering brake control
(CBC)
● Automatic transmission
180Driving and operatingVXR mode
The drive dynamic characteristics are adapted to high performance
settings.
Depending on the instrument cluster
the colouring of the display will be
adapted.
SPORT mode
The settings of the systems are
adapted to a sportier driving style.
NORMAL mode
In NORMAL mode, when neither SPORT nor VXR is pressed, all
settings of the systems are adapted
to standard values.
Personalised settings in the VXR
mode
The driver can select the functions of
the VXR mode when VXR is pressed.
Select the relevant settings in
Settings , I Sport Mode in the Colour-
Info-Display.
Colour-Info-Display 3 117.
Vehicle personalisation 3 121.Driver assistance
systems9 Warning
Driver assistance systems are
developed to support the driver
and not to replace the driver's
attention.
The driver accepts full
responsibility when driving the
vehicle.
When using driver assistance
systems, always take care
regarding the current traffic
situation.
Cruise control
The cruise control can store and
maintain speeds of approx. 20 to
120 mph. Deviations from the stored
speeds may occur when driving uphill or downhill.
For safety reasons, the cruise control cannot be activated until the brake
pedal has been operated once.
Activating in first gear is not possible.
Do not use the cruise control if it is not advisable to maintain a constant
speed.
On vehicles with automatic
transmission or manual transmission
automated cruise control can be
activated in automatic mode and
manual mode.
Control indicator m 3 109.
Driving and operating183Change speed limit
With speed limiter active, hold or
briefly turn thumb wheel to RES/+ to
increase or SET/- to decrease the
desired maximum speed.
Exceeding the speed limit
When exceeding the limited speed
without driver input, the speed will
flash in the Driver Information Centre
and a chime sounds during this
period.
In the event of an emergency, it is
possible to exceed the speed limit by
depressing the accelerator pedal
firmly nearly to the final point. In this
case no chime appears.
Release the accelerator pedal and the speed limiter function is
reactivated once a speed lower than
the limit speed is obtained.
Deactivation Press y: speed limiter is deactivated
and the vehicle can be driven without
speed limit.The limited speed will be stored and
is indicated in brackets in the Driver
Information Centre. Additionally, a
corresponding message appears.
Resume limit speed
Turn thumb wheel to RES/+. The
stored speed limit will be obtained.
Switching off
Press L, the speed limit indication in
the Driver Information Centre
extinguishes. The stored speed is
deleted.
By pressing m to activate cruise
control or adaptive cruise control,
speed limiter is also deactivated and
the stored speed is deleted.
By switching off the ignition, speed
limiter is also deactivated, but the
speed limit will be stored for next
speed limiter activation.Adaptive cruise control
Adaptive cruise control (ACC) is an
enhancement to traditional cruise
control with the additional feature of
maintaining a certain distance behind the vehicle ahead.
Adaptive cruise control automatically decelerates the vehicle when
approaching a slower moving vehicle. It then adjusts the vehicle speed to
follow the vehicle ahead at the
selected following distance. The
vehicle speed increases or decreases
to follow the vehicle in front, but will
not exceed the set speed. It may
apply limited braking with activated
brake lights.
The adaptive cruise control can store and maintain speeds over approx.
15 mph. If following a vehicle ahead
driving slower than 15 mph, the
slower speed will be set. On vehicles
with automatic transmission, the
system brakes to a stop.
Driving and operating185Overriding set speedIt is always possible to drive faster
than the selected set speed by
depressing the accelerator pedal. When the accelerator pedal is
released, the vehicle returns to the
desired distance if a slower vehicle is
ahead. Otherwise it returns to the
stored speed.
Once the system is activated,
adaptive cruise control decelerates or brakes if it detects a vehicle ahead,
which is slower or closer than the
desired following distance.9 Warning
Accelerating by the driver
deactivates automatic braking by
the system. This is indicated as a
pop-up warning in the Driver
Information Centre.
Increase speed
With adaptive cruise control active,
hold thumb wheel turned to RES/+:
speed increases continuously in large
increments, or activate repeatedly
RES/+: speed increases in small
increments.
If the vehicle is driven with adaptive cruise control active much faster than
the desired speed, e.g. after
depressing the accelerator pedal,
then the current speed can be stored
and maintained by turning the thumb
wheel to SET/-.
Reduce speedWith adaptive cruise control active,
hold thumb wheel turned to SET/-:
speed decreases continuously in
large increments, or activate
repeatedly SET/-: speed decreases in
small increments.
If the vehicle is driven with adaptive
cruise control active much slower
than the desired speed, e.g. because
of a slower vehicle ahead, then the
current speed can be stored and
maintained by turning the thumb
wheel to SET/-.Resume stored speed
If the system is switched on but
inactive, then turn thumb wheel to
RES/+ at a speed above 15 mph to
resume the stored speed.
Full speed range adaptive cruise
control on vehicles with automatic transmission
Full speed range adaptive cruisecontrol will maintain a following gap
behind a detected vehicle and slow
your vehicle to a stop behind that
vehicle.
When the vehicle ahead drives away
within two minutes, turn thumb wheel
to RES/+ or operate the accelerator
pedal to a speed of 6 mph to resume
full speed range adaptive cruise
control.
If the stopped vehicle ahead begins to move forward and full speed range
adaptive cruise control has not
resumed, the green illuminated
vehicle ahead control indicator A will
flash and a warning chime will sound
as a reminder that the vehicle ahead
is pulling away.
Driving and operating1879Warning
The driver accepts full
responsibility for the appropriate
following distance based on traffic, weather and visibility conditions.
Following distance must be
adjusted or the system switched
off when required by the prevailing
conditions.
Detecting the vehicle ahead
The green illuminated vehicle ahead
control indicator A is displayed when
the system detects a vehicle in the driving path.
Forward collision alert 3 190.
If this symbol does not display, or displays briefly, adaptive cruise
control will not respond to vehicles
ahead.
Deactivation
Adaptive cruise control is deactivated by the driver when:
● y is pressed.
● Brake pedal is applied.
● Clutch pedal is depressed for more than four seconds.
● Gear selector lever of automatic transmission is moved to N.
The system is also automatically deactivated when:
● Vehicle speed accelerates above
120 mph or slows down below
9 mph (on vehicles with
automatic transmission it slows
down to a stop without
deactivating within two minutes).
● The Traction Control system is operating.
● The Electronic Stability Control is
operating.
● There is no traffic and nothing detected on the road sides for
several minutes. In this case
there are no radar echoes and
the sensor may report that it is blocked.● The collision imminent braking system is applying the brakes.
● The radar sensor is blocked by an ice or water film.
● A fault is detected in the radar, engine or brake system.
Additionally the system is
automatically deactivated on vehicles with automatic transmission (full
speed range adaptive cruise control)
when:
● The electric parking brake is applied.
● The vehicle is being held to a stop
by the system for more than
two minutes.
● The vehicle stops, the driver safety belt is released and the
driver's door is opened.
When adaptive cruise control is
deactivated automatically, the control indicator m or C illuminates white
and a warning message is displayed
as a pop-up in the Driver Information
Centre.
The stored speed is maintained.
224Vehicle careVehicle careGeneral Information...................225
Accessories and vehicle modifications .......................... 225
Vehicle storage ........................225
End-of-life vehicle recovery .....225
Vehicle checks ........................... 226
Performing work ......................226
Bonnet ..................................... 226
Engine oil ................................. 227
Automatic transmission fluid ....228
Engine coolant ......................... 229
Power steering fluid .................230
Washer fluid ............................ 230
Brakes ..................................... 231
Brake fluid ............................... 231
Vehicle battery ......................... 231
Diesel fuel system bleeding .....233
Wiper blade replacement ........233
Bulb replacement .......................234
Halogen headlights ..................235
Xenon headlights .....................237
Fog lights ................................. 239
Tail lights ................................. 240
Side turn signal lights ..............242
Number plate light ...................243Interior lights ............................ 244
Instrument panel illumination ...244
Electrical system ........................244
Fuses ....................................... 244
Engine compartment fuse box . 246
Instrument panel fuse box .......248
Load compartment fuse box ....249
Vehicle tools .............................. 251
Tools ........................................ 251
Wheels and tyres .......................252
Winter tyres ............................. 252
Tyre designations ....................252
Tyre pressure .......................... 252
Tyre pressure monitoring system .................................... 254
Tread depth ............................. 255
Changing tyre and wheel size . 256
Wheel covers ........................... 256
Tyre chains .............................. 257
Tyre repair kit .......................... 257
Wheel changing .......................260
Spare wheel ............................ 262
Jump starting ............................. 265
Towing ....................................... 266
Towing the vehicle ...................266
Towing another vehicle ...........268Appearance care .......................270
Exterior care ............................ 270
Interior care ............................. 272