Page 167 of 284

161
Driving and operation
Picture no: 18253s.tif
Control indicator
m
When driving, the control indicator m
illuminates as soon as the cruise control is
switched on.
If the cruise control is switched on before
the brake has been applied once, the
control indicator flashes m.
Picture no: 18168s.tif
To activate Turn switch m up and release. The current
speed is stored and maintained. The
accelerator pedal may be released.
Vehicle speed can be increased by
depressing the accelerator pedal. When
the accelerator pedal is released, the
previously stored speed is resumed.
Increase When cruise control is engaged, turn
switch m upwards and hold, or turn briefly
several times: continuous or stepwise
increase of the speed in 2 km/h increments.
After releasing, the current speed is stored
and maintained. Decelerate
When cruise control is engaged, turn
switch
g downwards and hold, or turn
briefly several times: continuous or
stepwise reduction of the speed in 2 km/h
increments.
After releasing, the current speed is stored
and maintained.
To deactivate Tap button 0: this switches the cruise
control off. Warning lamp m goes out.
Automatic deactivation:
z Vehicle speed below approx. 30 km/h.
z The brake pedal is depressed.
z The clutch pedal is depressed 3.
z Selector lever for automatic
transmission 3 or manual
transmission automated 3 in N.
Stored speedThe speed is saved until the ignition is
switched off.
To reset the saved speed at over 30 km/h,
turn switch g downwards.
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Page 168 of 284

162 Driving and operation
Picture no: 18189s.tif
Ultrasonic parking sensors 3
Park pilot makes reverse parking easier by
measuring the distance between the back
of the vehicle and obstacles to the rear. It is
the driver, however, who maintains full
responsibility for parking.
The system records the distance using four
sensors in the rear bumper.
Picture no: 18254s.tif
To activateThe park pilot system activates
automatically when the ignition is switched
on and reverse gear is engaged.
Its operational readin ess is indicated by
illumination of the LED in the button r 3. If the vehicle approaches an obstacle, a
series of acoustic signals sound. The
interval between the signals becomes
shorter as the vehicle gets closer to the
obstacle. When the distance is less
than 30 cm, the signal is continuous.
9
Warning
Under certain circum
stances, various
reflective surfaces on objects or clothing
as well as external noise sources may
cause the system to fail to detect obsta-
cles.
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Page 170 of 284

164 Driving and operation
Picture no: 18244s.tif
Deflation detection system (DDS)3
The deflation detection system monitors
the revolutions of all four vehicles from a
speed of approximately 30 km/h. If there is
a loss of pressure in one of the tyres, its
diameter is reduced, and therefore also the
wheel rotation speed. Warning lamp w
lights red.
Stop immediately and check tyre pressure.
Fit the spare wheel if necessary 3 196,
3 200. Control indicator
w
If control indicator w lights up red while
driving, there is a loss of pressure. Stop
immediately and check tyre pressures. A
maximum speed of 80 km/h is permitted
for tyres run flat 3 3 171.
Control indicator illumination w in yellow
indicates a fault in the system. Have cause
of fault remedied by a workshop. The
system’s integrated se lf diagnostics allow
faults to be quickly remedied.
The control indicator flashes three times
when the system is initialising.
Tyre pressure 3169, 3264.
Picture no: 18245s.tif
System initialisationAfter correcting the tyre pressure or
changing a tyre/wheel, the system must be
initialised: turn the ignition on, press the
DDS button for approx. 4 seconds. Control
indicator w flashes three times. The system
is operational after driving a certain
distance.
Only initialise the system if all tyres have
the prescribed pressure.
9
Warning
The deflation detection system does not
replace manual checks with a suitable
gauge.
Check tyre pressures at least every
14 days and prior to any long journey;
the tyres should be checked when cold.
Don’t forget to check the spare 3.
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Page 171 of 284

165
Driving and operation
Picture no: 17206t.tif
Hydraulic brake system The foot brake comprises two independent
brake circuits.
If a brake circuit fails, the vehicle can still be
braked using the other brake circuit.
However, the brake pedal must be
depressed a considerable way before any
braking effect occurs, and much more
force is required. The braking distance is
longer. Contact a workshop for assistance
before continuing to drive. To ensure that full
pedal travel can be
utilised, especially in case of a fault in one
of the brake circuits, there must be no mats
in the vicinity of the pedals 3150.
When the engine is not running, the
support of the brake servo unit disappears
once the brake pedal has been depressed
once or twice. Braking effect is not
reduced, but braking requires significantly
greater force. This is especially important
to bear in mind when towing.
The brake fluid level should be checked
regularly. If the brake fluid level is too low
and the hand brake is not applied, control
indicator R on the instrument panel
illuminates 389.
Picture no: 18257s.tif
Brake system control indicator R
The control indicator lights up when the
ignition is switched on when the hand
brake is applied or when the brake or
clutch fluid level is too low. Brake fluid
level 3246.
For vehicles with manual transmission
automated 3, the control indicator flashes
for a few seconds when the ignition is
turned off when the hand brake is not
applied.
9
Warning
If the control indicator illuminates when
the hand brake is released, stop driving
immediately. Contact a workshop for
assistance.
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Page 172 of 284

166 Driving and operationAnti-lock brake system (ABS
u)
ABS prevents the wheels from locking.
ABS starts to regulate brake pressure as
soon as a wheel shows a tendency to lock.
The vehicle remains steerable, even during
hard braking.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that the
pedal is pulsating. Do not reduce the
pressure on the pedal.
Picture no: 18258s.tif
Control indicator u for ABS
It illuminates for a few seconds when
ignition is switched on. Once the control
indicator goes out, the system is ready for
operation.
If the control indica tor does not go out
after a few seconds, or if it illuminates while
driving, there is a fault in the ABS. The
brake system remains operational without
ABS regulation.
Adaptive brake lamp 3
During full-on braking, all three brake
lamps flash for the duration of ABS control. Self testing
When the engine is started and the vehicle
starts off, the system performs a self-check,
which may be audible.
Fault
Have cause of fault remedied by a
workshop. The system’s integrated self
diagnostics allow faults to be quickly
remedied.
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.
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Page 196 of 284

190 Self-help, vehicle careSelf-help,
vehicle care
Diesel fuel system, bleeding If the tank is allowed to run dry, the diesel
fuel system must be bled. Turn over the
ignition three times for 15 seconds at a
time. Then start the engine for a maximum
of 40 seconds
1). Repeat this process after
no less than 5 seconds. If the engine fails to
start, seek the assistance of a workshop.
Picture no: 18190s.tif
Bonnet Pull the release lever located on the left
side below the instru ment panel and push
it back to its original position.
Diesel fuel system, bleeding ............... 190
Bonnet .................................................. 190
Starting the engine with jump leads
3. 191
Towing .................................................. 193
Warning triangle ¨ 3......................... 196
First-aid kit (cushion) + 3................... 196
Spare wheel 3...................................... 196
Jack £ 3 and vehicle tools 3........... 198
Changing wheels ................................. 200
Tyre repair kit 3................................... 204
Electrical system .................................. 208
Fuses and the most important circuits they protect ....................................... 209
Bulb replacement ................................ 212
Halogen headlamp system ................ 212
Adaptive Forward Lighting system 3. 216
Front indicator lamps .......................... 220
Fog lamps 3......................................... 220
Side turn signal lamp .......................... 220
Tail lamps ............................................. 221
Number plate lamp ............................. 225
Courtesy lamps .................................... 226
Vehicle care.......................................... 228
1)For technical reasons only 30 seconds are
possible on engines A 17 DTR/Z 17 DTR
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Page 200 of 284
194 Self-help, vehicle care
Picture no: 18586s.tif
The towing eye is located in a recess.
Picture no: 18142s.tif
Screw in the towing eye anticlockwise as far
as it will go until it stops in a horizontal
position.
Attach a tow rope 3 – or better still a tow
rod 3 – to the eye.
The towing eye may only be used for
towing and not for recovery of the vehicle.
Switch on ignition to release steering
column lock and to permit operation of
brake lamps, horn an d windscreen wipers. Manual transmission or manual
transmission automated
3 in neutral,
automatic transmission 3 in N.
When the engine is not running,
considerably more force is needed to brake
and steer.
To prevent the entry of exhaust fumes from
the towing vehicle, switch on the air
recirculation 3 and close the windows.
Contact a workshop for assistance.
Caution
Drive slowly. Do not drive jerkily. Exces-
sive tractive force can damage the
vehicle.
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Page 212 of 284

206 Self-help, vehicle care
Picture no: 18427s.tif
6. Screw the air tube to the connector on the compressor.
7. Switch on ignition. To prevent battery discharge, we
recommend that you leave the engine
running.
Picture no: 18428s.tif
8. Press button < on the compressor, the
tyre is filled with the sealant.
9. While the sealant bottle drains (approx. 30 seconds) the pressure
indicator on the comp ressor briefly points
to 6 bar. Pressure then sinks again. 10. All of the sealant is
pumped into the tyre.
Afterwards, the tyre is filled with air.
11. The prescribed tyre pressure 3264,
should be attained within 10 minutes.
Once the pressure is attained, switch off
the compressor by pressing button <
again.
If the prescribed tyre pressure is not
obtained within 10 minutes, remove the
tyre repair kit. Move the vehicle one tyre
rotation. Reattach the tyre repair kit
and continue the filling procedure for
10 minutes. If the prescribed tyre
pressure is still not obtained, the tyre is
too badly damaged. Seek the
assistance of a workshop.
Release excess tyre pressure using
button ].
Do not operate the compressor for
more than 10 minutes, see "Important"
3 207.
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