130Driving and operatingEnhanced Traction function
If necessary, in the event of soft
ground, mud or snow-covered road
surfaces, ESP® Plus
can be
deactivated to enhance traction:
Press Ø on the instrument panel.
Control indicator Ø illuminates in the
instrument cluster and a
corresponding message appears in
the DIC 3 89.
When vehicle speed reaches
30 mph, the system switches
automatically from Enhanced
Traction function to ESP® Plus
operation. Control indicator Ø
extinguishes in the instrument cluster.
ESP® Plus
is reactivated by pressing
Ø again. Control indicator Ø
extinguishes.
ESP® Plus
is also reactivated the next
time the ignition is switched on.
Fault
If the system detects a fault, control indicator b 3 86 illuminates together
with F 3 85 in the instrument cluster
and a corresponding message
appears in the DIC 3 89.
The Electronic stability program
(ESP® Plus
) is not operational. Have
the cause of the fault remedied by a
workshop.
Vehicle messages 3 90.
Driving and operating131Driver 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 20 mph and
above. 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.
Do not use the cruise control if it is not
advisable to maintain a constant
speed.
Control indicators U and m 3 88.
Activation
Press m; control indicator U
illuminates green in the instrument
cluster.
Cruise control is now in standby mode
and a corresponding message
appears in the Driver Information
Centre (DIC).
Accelerate to the desired speed and
press < or ]. The current speed is
now stored and maintained and the
accelerator pedal can be released.
132Driving and operatingControl indicator m illuminates green
in the instrument cluster together with
U and a corresponding message
appears in the DIC.
Vehicle speed can be increased by depressing the accelerator pedal.
The stored speed flashes in the
instrument cluster. When the
accelerator pedal is released, the
previously stored speed is resumed.
Cruise control remains activated
while gearshifting.
The speed is saved until the ignition
is switched off.
Increase speed
With cruise control active, the vehicle speed can be increased continuously
or in small increments by holding
down or tapping < repeatedly.
When the switch is released the
current speed is stored and
maintained.
Alternatively, accelerate to the
desired speed and store by pressing
< .Reduce speed
With cruise control active, the vehicle speed can be decreased
continuously or in small increments
by holding down or tapping ]
repeatedly.
When the switch is released the
current speed is stored and
maintained.
Deactivation
Press §; cruise control is deactivated
and the green control indicator U
extinguishes in the instrument cluster.
Automatic deactivation:
● vehicle speed drops below 20 mph
● the brake pedal is depressed
● the clutch pedal is depressed
● selector lever in N
● engine speed is in a very low or very high range
The speed is stored and a
corresponding message appears in
the DIC.
Reactivation Press R at a speed above 20 mph.
If the stored speed is much higher
than the current speed, the vehicle
will accelerate powerfully until the stored speed is obtained.
Pressing < will also reactivate the
cruise control function, but at the
current vehicle speed only, not the stored speed.
Deleting the stored speedPress m; Green control indicators
U and m extinguish in the instrument
cluster.
Driving and operating133Cruise control speed limiter
The speed limiter prevents the
vehicle exceeding a preset maximum speed above 20 mph.
Activation
Press U; control indicator U
illuminates yellow in the instrument
cluster.
Cruise control speed limiter function
is now in standby mode and a
corresponding message appears in
the DIC.
Accelerate to the desired speed and
press < or ]. The current speed is
recorded.
The vehicle can be driven normally
but it will not be possible to exceed the programmed speed limit except in an
emergency.
Where the limit speed cannot be
maintained, e.g. when driving on a
steep decline, the limit speed will
flash in the DIC 3 89, accompanied
by a warning chime.
Increase limit speed
The limit speed can be increased
continuously or in small increments
by holding down or tapping <
repeatedly.
Reduce limit speed
The limit speed can be decreased
continuously or in small increments
by holding down or tapping ]
repeatedly.
Exceeding the limit speed
In the event of an emergency, it is possible to exceed the limit speed by
depressing the accelerator pedal
firmly beyond the point of resistance.
The limit speed will flash in the DIC
3 89 during this period, accompanied
by a warning chime.Release the accelerator pedal and the speed limiter function is
reactivated once a speed lower than
the limit speed is obtained.
Notice
In vehicles fitted with a Speed
limiter, fully depressing the
accelerator pedal will not allow you
to exceed the set maximum vehicle
speed. Speed limiter 3 134.
Deactivation
Press §; Speed limiter is deactivated
and the vehicle can be driven normally.
The limit speed is stored and a
corresponding message appears in
the DIC.
Reactivation
Press R; The speed limiter function is
reactivated.
Pressing < will also reactivate the
speed limiter function, but at the
current vehicle speed only, not the
stored speed.
Deleting the limit speed
Press U; Yellow control indicator U
extinguishes in the instrument cluster.
134Driving and operatingSpeed limiter
Maximum speed limiter
In accordance with local or national
regulations, the vehicle may be
equipped with a fixed maximum
speed limiter that cannot be disabled.
If equipped, a warning label indicating the fixed maximum speed limit (55 to
80 mph) is located on the instrument
panel.
Deviations from the maximum speed
limit may occur briefly when driving
downhill, for physical reasons.
A warning buzzer will sound for
10 seconds every 40 seconds if the
vehicle briefly exceeds the set limit.
Vehicles also equipped with cruise
control speed limiter: the maximum
speed cannot be exceeded by
depressing the accelerator pedal
firmly beyond the point of resistance.
Cruise control speed limiter 3 131.
Parking assist
The parking assist makes reverse
parking easier by measuring the
distance between the rear of the
vehicle and obstacles. It is the driver,
however, who bears full responsibility for parking.
The system consists of four ultrasonic
parking sensors in the rear bumper.
Notice
Attached parts in the detection area
cause system malfunction.
Activation
When reverse gear is engaged, the
system switches itself on
automatically. Readiness for
operation is indicated by a brief
acoustic signal.
An obstacle is indicated by buzzers
and, depending on vehicle, is also
indicated in the Info-Display. The
interval between the buzzers
becomes shorter as the vehicle gets
closer to the obstacle. When the distance is less than 30 cm, the
buzzer is continuous.
Notice
In versions with Info-Display
indication, the volume of the buzzer can be adjusted via the Infotainment
Driving and operating135system. Refer to Infotainment
system manual for further
information.
Deactivation
Deactivate the system by pressing
r on the instrument panel with the
ignition on. LED illuminates in the
button when deactivated. When
reverse gear is selected, no acoustic
signal will sound.
Notice
In versions with Info-Display
indication, the function can be
deactivated via the Infotainment
system. Refer to Infotainment
system manual for further
information.
The function is reactivated by
pressing r again or the next time
the ignition is switched on.
Fault
If the system detects an operating fault, when selecting reverse gear a
continuous acoustic alarm will sound
for approx. 5 seconds, a
corresponding message appears in
the Driver Information Centre (DIC)
3 89 and F illuminates in the
instrument cluster 3 85. Consult a
workshop to have the cause of the
fault remedied.Caution
When reversing, the area should
be free from obstacles which could impact on the underside of the
vehicle.
Impact to the rear axle, which may
not be visible, could lead to
uncharacteristic changes in the
vehicle handling. In the event of
such an impact, consult a
workshop.
Vehicle messages 3 90.
Basic notes on parking assist system
9 Warning
Under certain circumstances,
various reflective surfaces on
objects or clothing as well as
external noise sources may cause the system to fail to detect
obstacles.
Caution
Performance of the sensors can
be reduced when sensors are
covered, e.g. by ice or snow.
Performance of the parking assist
systems can be reduced due to
heavy loading.
140Driving 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 50 mph 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 3 196.
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 metres above sealevel. 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 metres 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
3 184.
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.
Driving and operating141In the case of trailer loads of
1200 kg or more, the vertical coupling
load should not be less than 50 kg.
Rear axle loadWhen the trailer is coupled and the
towing vehicle fully loaded (including all occupants), the permissible rear
axle load (see identification plate or
vehicle documents) must not be
exceeded.
Trailer stability assist
If the system detects snaking
movements, engine power is reduced
and the vehicle/trailer combination is
selectively braked until the snaking ceases. While the system is working,keep steering wheel as still as
possible.
Trailer stability assist (TSA) is a
function of the Electronic Stability
Program (ESP® Plus
) 3 129.