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Driving and operating127driving, there is a fault in the ABS.
Control indicator F 3 85 may also
illuminate in the instrument cluster
together with a corresponding
message in the Driver Information
Centre (DIC). 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, F , R 3 85
and C 3 85 illuminate, there is a fault
in the braking system. A
corresponding message also
appears in the DIC 3 89. Have the
cause of the fault remedied by a
workshop.
Vehicle messages 3 90.
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 85.
Parking 3 120.
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 3 117.
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
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128Driving and operatingfor a further 2 seconds. The brakes
release automatically as soon as the
vehicle begins to accelerate.Caution
The Hill start assist cannot
completely prevent vehicle
movement in all situations
(extremely steep gradients, etc.).
If necessary, depress the brake
pedal to prevent the vehicle from
rolling forwards or backwards.
The Hill start assist is not active
during an Autostop. Stop-start system
3 117.
Ride control systems
Traction Control system The Traction Control system (TC) is a
component part of the Electronic
Stability Program (ESP® Plus
) which
improves driving stability when
necessary, regardless of the type of
road surface or tyre grip, by
preventing the drive wheels from
spinning.
As soon as the drive wheels starts to spin, engine output is reduced and
the wheel spinning the most is braked
individually. This considerably
improves the driving stability of the
vehicle on slippery road surfaces.
TC is operational as soon as the
ignition is switched on and control
indicator b extinguishes in the
instrument cluster. A corresponding message also appears in the Driver
Information Centre (DIC) 3 89.
When TC is active b flashes.9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 86.
Trailer stability assist (TSA) 3 141.
Enhanced Traction function
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Driving and operating129If necessary, in the event of soft
ground, mud or snow-covered road
surfaces, the Traction control system
(TC) 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 TC operation.
Control indicator Ø extinguishes in
the instrument cluster.
TC is reactivated by pressing Ø
again. Control indicator Ø
extinguishes.
TC 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.
TC is not operational. Have the cause of the fault remedied by a workshop.
Vehicle messages 3 90.
Electronic stability program The Electronic Stability Program
(ESP® Plus
) improves driving stability
when necessary, regardless of the
type of road surface or tyre grip. It also
prevents the drive wheels from
spinning.
As soon as the vehicle starts to
swerve (understeer/oversteer),
engine output is reduced and the
wheels are braked individually. Thisconsiderably improves the driving
stability of the vehicle on slippery road
surfaces.
ESP® Plus
is operational as soon as
the ignition is switched on and control
indicator b extinguishes in the
instrument cluster. A corresponding
message also appears in the Driver
Information Centre (DIC) 3 89.
When ESP® Plus
comes into action b
flashes.9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 86.
Trailer stability assist (TSA) 3 141.
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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.
Page 133 of 209

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.
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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.
Page 135 of 209

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.
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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