Page 156 of 267

154Driving and operatingSwitching on
Press m; control indicator m in
instrument cluster illuminates white.
Activation Accelerate to the desired speed and
turn thumb wheel to SET/-, the
current speed is stored and
maintained. Control indicator m in
instrument cluster illuminates green. Set speed is indicated on the display.
Accelerator pedal can be released.
Vehicle speed can be increased by
depressing the accelerator pedal. When the accelerator pedal is
released, the previously stored speed is resumed.
Cruise control remains activated
while gearshifting.
Increase speed
With cruise control active, hold thumb
wheel turned to RES/+ or briefly turn
to RES/+ repeatedly: speed
increases continuously or in small
increments.
Alternatively accelerate to the desired speed and store by turning to SET/-.
Reduce speed
With cruise control active, hold thumb
wheel turned to SET/- or briefly turn to
SET/- repeatedly: speed decreases
continuously or in small increments.
Deactivation
Press y; control indicator m in
instrument cluster illuminates white. Cruise control is deactivated. Last
stored speed remains in memory for
later speed resume.
Automatic deactivation: ● Vehicle speed is below approx. 20 mph.
● Vehicle speed drops more than 15 mph below the set speed.
● The brake pedal is depressed.
● The clutch pedal is depressed for
a few seconds.
● The selector lever is in N.
● Engine speed is in a very low range.
● The Traction Control system or Electronic Stability Control is
operating.
● Parking brake is applied.
● Simultaneous pressing RES/+
and brake pedal deactivates
cruise control and will delete
stored speed.
Page 197 of 267

Vehicle care195Washer fluid
Fill with clean water mixed with a
suitable quantity of approved
windscreen washer fluid which
contains antifreeze.
Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Washer fluid 3 237.
Brakes
In the event of minimum thickness of
the brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
The brake fluid level must be betweenthe MIN and MAX marks.
If fluid level is below the MIN mark,
seek the assistance of a workshop.
Brake and clutch fluid 3 237.
Vehicle battery
The vehicle battery is maintenance-
free provided that the driving profile
allows sufficient charging of the
battery. Short-distance-driving and
frequent engine starts can discharge
the vehicle battery. Avoid the use of
unnecessary electrical consumers.
Page 210 of 267
208Vehicle careNo.Circuit1Trailer interface module, rear
carrier system2-3Battery sensor4Chassis control module fuel
pump5ABS6Low beam and Daytime running light left, Xenon high beam
shutter left and right7–8MTA Transmission control
module, LPG control module9Body control module voltage
detection10Headlamp levelling11Rear wiper12Heated rear window13Low beam and Daytime running
light rightNo.Circuit14Heated exterior mirror15–16Brake booster kit17Ignition, crank power supply18Engine control module19Fuel pump20–21Engine solenoids, engine
sensors22–23Injection system24Washer system25–26Engine sensors27Heater shut off valve28Engine control module29Engine control moduleNo.Circuit30Engine control module31High beam left, Xenon low
beam left32High beam right, Xenon low
beam right33Engine control module34Horn35Air condition compressor clutch36Front fog lights
Page 240 of 267

238Service and maintenanceDexos is the newest engine oil quality
that provides optimum protection for
petrol and diesel engines. If it is
unavailable, engine oils of other listed qualities have to be used.
Recommendations for petrol engines
are also valid for Compressed Natural
Gas (CNG), Liquified Petroleum Gas
(LPG) and Ethanol (E85) fuelled
engines.
Select the appropriate engine oil based on its quality and on the
minimum ambient temperature
3 241.
Topping up engine oil
Engine oils of different manufacturers and brands can be mixed as long as
they comply with the required engine
oil quality and viscosity.
Use of engine oil with only
ACEA A1/B1 or only A5/B5 quality is
prohibited, since it can cause long-
term engine damage under certain
operating conditions.
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 241.Additional engine oil additives
The use of additional engine oil
additives could cause damage and
invalidate the warranty.
Engine oil viscosity grades
The SAE viscosity grade gives
information of the thickness of the oil.
Multigrade oil is indicated by two
figures, e.g. SAE 5W-30. The first
figure, followed by a W, indicates the
low temperature viscosity and the
second figure the high temperature viscosity.
Select the appropriate viscosity grade depending on the minimum ambient
temperature 3 241.
All of the recommended viscosity
grades are suitable for high ambient
temperatures.
Coolant and antifreeze
Use only silicate-free long life coolant (LLC) antifreeze. Consult a
workshop.
The system is factory filled with
coolant designed for excellent
corrosion protection and frost
protection down to approx. -28 °C. Innorthern countries with very low
temperatures the factory filled coolant
provides frost protection down to
approx. -37 °C. This concentration
should be maintained all year round.
The use of additional coolant
additives that intend to give additional
corrosion protection or seal against
minor leaks can cause function
problems. Liability for consequences
resulting from the use of additional
coolant additives will be rejected.
Washer fluid Use only washer fluid approved for
the vehicle to prevent damage of wiper blades, paintwork, plastic and
rubber parts. Consult a workshop.
Brake and clutch fluid Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified interval.
Page 262 of 267

260IndexAAccessories and vehicle modifications .......................... 190
Adjustable air vents ...................130
Airbag and belt tensioners ...........90
Airbag deactivation ................48, 91
Airbag label................................... 43 Airbag system .............................. 43
Air conditioning regular operation ................................ 131
Air conditioning system .............. 123
Air intake .................................... 130
Air vents...................................... 130
Antilock brake system ................ 148
Antilock brake system (ABS) .......92
Anti-theft alarm system ................27
Anti-theft locking system .............. 26
Appearance care ........................233
Ashtrays ....................................... 82
Automatic anti-dazzle ..................30
Automatic light control ...............113
Automatic locking ........................24
Automatic transmission .............140
Autostop ............................... 95, 135
B Battery discharge protection ......121
Battery voltage ........................... 104
Belts.............................................. 40
Bicycle rack .................................. 58Bonnet ....................................... 191
Brake and clutch fluid .................237
Brake and clutch system .............92
Brake assist ............................... 149
Brake fluid .................................. 195
Brakes ............................... 148, 195
Breakdown.................................. 231
Bulb replacement ....................... 198
C Capacities .................................. 251
Car Pass ...................................... 21
Catalytic converter .....................140
Central locking system ................22
Centre high-mounted brake light 205
Changing tyre and wheel size ...218
Charging system .......................... 91
Child locks ................................... 25
Child restraint installation locations ................................... 51
Child restraints.............................. 49
Child restraint systems ................49
Cigarette lighter ........................... 82
City mode ................................... 152
Climate control ............................. 15
Climate control systems .............122
Clock ............................................ 79
Code ........................................... 102
Collision damage repair ..............256
Colour-Info-Display .....................100
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