Vehicle care223Temperature dependencyThe tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase. Tyre pressure
values provided on the tyre
information label and tyre pressure
chart are valid for cold tyres, which
means at 20 °C.
The pressure increases by nearly
10 kPa for a 10 °C temperature
increase. This must be considered
when warm tyres are checked.
Tyre deflation detectionsystem
The tyre deflation detection system continually checks the rotation speed
of all four wheels and warns on low
tyre pressure condition once vehicle
is driving. This is achieved by
comparing tyre rolling circumference
with reference values and further
signals.
If a tyre loses pressure the control
indicator w illuminates and a warning
message is displayed in the Driver
Information Centre.In this case reduce speed, avoid
sharp cornering and strong braking.
Stop at next safe opportunity and
check tyre pressure.
Control indicator w 3 98.
After adjusting tyre pressure initialise
system to extinguish the control
indicator and restart system.Caution
Deflation detection system warns
just about low tyre pressure
condition and does not replace
regular tyre maintenance by the
driver.
In case of a system malfunction a
message is displayed in the Driver
Information Centre. Set correct tyre
pressure and reinitialise system. If the
failure continues to be displayed,
contact a workshop. The system is
inoperable when ABS or ESC has a
malfunction or a temporary spare
wheel is used. Once the road tyre has
been refitted, check the tyre pressure with cold tyres and initialise the
system.
System initialisation
After tyre pressure correction or
wheel change, the system must be
initialised to learn new circumference reference values:
1. Always ensure that all four tyres have correct tyre pressure3 254.
2. Apply parking brake. 3. Press w to reset deflation
detection system.
4. Reset is confirmed by pop-up indication.
Vehicle care225Wheel covers
Wheel covers and tyres that are
factory approved for the respective
vehicle and comply with all of the
relevant wheel and tyre combination
requirements must be used.
If the wheel covers and tyres used are
not factory approved, the tyres must
not have a rim protection ridge.
Wheel covers must not impair brake
cooling.9 Warning
Use of unsuitable tyres or wheel
covers could lead to sudden
pressure loss and thereby
accidents.
Vehicles with steel wheels: When
using locking wheel nuts, do not
attach wheel covers.
Tyre chains
Tyre chains are only permitted on the
front wheels.
Always use fine mesh chains that add no more than 9 mm to the tyre tread
and the inboard sides (including chain
lock).
9 Warning
Damage may lead to tyre blowout.
Tyre chains are permitted on tyres of
size 215/70R16, 215/65 R17,
225/55 R18 and 205/55 R19.
Temporary spare wheel
The use of tyre chains is not permitted
on the temporary spare wheel.
Tyre repair kit
Minor damage to the tyre tread can be repaired with the tyre repair kit.
Do not remove foreign bodies from
the tyres.
Tyre damage exceeding 4 mm or that
is at tyre's sidewall cannot be repaired with the tyre repair kit.9 Warning
Do not drive faster than 80 km/h.
Do not use for a lengthy period.
Steering and handling may be
affected.
In the case of a flat tyre:
Apply the parking brake and engage
first gear, reverse gear or P.
228Vehicle care
16. Continue driving immediately sothat sealant is evenly distributed
in the tyre. After driving approx.
5 km but no more than ten
minutes, stop and check tyre
pressure. Screw compressor air
hose directly onto tyre valve when
doing this. Fill tyre as described
before. Drain excess tyre
pressure with the button on the air
hose.
If tyre pressure hasn't decreased
under 150 kPa (1.5 bar), set it to
the correct value. Otherwise the
vehicle must not be used. Seek
assistance of a workshop. 3 254
Repeat the checking procedure
once more after driving further
10 km but no more than ten
minutes to check that there is no
more loss of pressure.
If the tyre pressure has fallen
below 150 kPa (1.5 bar), the
vehicle must not be used. Seek
the assistance of a workshop.
17. Stow away tyre repair kit in load compartment.
Note
The driving characteristics of the repaired tyre are severely affected,
therefore have this tyre replaced.
If unusual noise is heard or the
compressor becomes hot, turn
compressor off for at least 30 min.
The built-in safety valve opens at a
pressure of 700 kPa (7 bar).
Note the expiry date of the kit. After
this date its sealing capability is no
longer guaranteed. Pay attention to
storage information on sealant
bottle.Replace the used sealant bottle. Dispose of the bottle as prescribed
by applicable laws.
The compressor and sealant can be used from approx. -30 °C.
Wheel changing
Make the following preparations and
observe the following information:
● Park the vehicle on a level, firm and non-skid surface. The front
wheels must be in the straight- ahead position.
● If necessary, place a chock under
the wheel diagonally opposite the
wheel to be changed.
● Apply the parking brake and engage first gear, reverse gear orP .
● If the ground on which the vehicle
is standing is soft, a solid board
(max. 1 cm thick) should be
placed under the jack.
● Take heavy objects out of the vehicle before jacking up.
● No people or animals may be in the vehicle when it is jacked-up.
230Vehicle careSpare wheelTemporary spare wheelCaution
The use of the temporary spare
wheel could affect driveability.
Have the defective tyre renewed
or repaired as soon as possible.
The spare wheel is located in the load
compartment beneath the floor
covering.
To remove:
1. Open the floor cover 3 73.
2. Remove the tool box.
3. The temporary spare wheel is secured with a wing nut. Unscrew
nut and take out the spare wheel.
4. When, after a wheel change, no wheel is placed in the spare wheelwell, secure the tool box by
tightening the wing nut as far as it will go and close floor cover.
5. After wheel change back to full size wheel, place the temporary
spare wheel outside up in the well
and secure with the wing nut.
Only mount one temporary spare
wheel. The permissible maximum
speed on the label on the temporary
spare wheel is only valid for the
factory-fitted tyre size.
If your vehicle gets a flat tyre on the rear while towing another vehicle,
mount the temporary spare wheel in
the front and the full size tyre in the
rear.
Tyre chains 3 225.Fitting the spare wheel
Make the following preparations and
observe the following information:
● Park the vehicle on a level, firm and non-skid surface. The front
wheels must be in the straight-
ahead position.
● If necessary, place a chock under
the wheel diagonally opposite the
wheel to be changed.
● Apply the parking brake and engage first gear, reverse gear or
P .
● Remove the spare wheel 3 230.
● Never change more than one wheel at once.
● Use the jack only to change wheels in case of puncture, not
for seasonal winter or summer
tyre change.
● The jack is maintenance-free.
● If the ground on which the vehicle
is standing is soft, a solid board
(max. 1 cm thick) should be
placed under the jack.
● Take heavy objects out of the vehicle before jacking up.
234Vehicle care● The vehicles must not come intocontact with each other during
the jump starting process.
● Apply the parking brake, transmission in neutral,
automatic transmission in P.
Open the positive terminal protection
caps of both vehicle batteries.
Lead connection order: 1. Connect the red lead to the positive terminal of the booster
battery.
2. Connect the other end of the red lead to the positive terminal of the
discharged battery.
3. Connect the black lead to the negative terminal of the boosterbattery.
4. Connect the other end of the black
lead to a vehicle grounding point
of your vehicle in the engine
compartment.
Route the leads so that they cannot
catch on rotating parts in the engine
compartment.
To start the engine: 1. Start the engine of the vehicle providing the jump.
2. After five minutes, start the other engine. Start attempts should be
made for no longer than
15 seconds at an interval of one
minute.
3. Allow both engines to idle for approx. three minutes with the
leads connected.
4. Switch on electrical consumers e.g. headlights, heated rear
window of the vehicle receiving
the jump start.
5. Reverse above sequence exactly when removing leads.Towing
Towing the vehicle
Remove the cap.
The towing eye is stowed with the
vehicle tools 3 220.
Vehicle care235
Screw in the towing eye as far as it will
go until it stops in a horizontal
position.
Attach a tow rope – or better still a tow
rod – to the towing eye.
The towing eye must only be used for towing and not for recovering the
vehicle.
Switch on ignition to release steering
wheel lock and to permit operation of
brake lights, horn and windscreen
wiper.
Switch the selector lever to neutral.
Release the parking brake.
Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
When the engine is not running,
considerably more force is needed to
brake and steer.
To prevent the entry of exhaust gases from the towing vehicle, switch on the
air recirculation and close the
windows.
Vehicles with automatic transmission: The vehicle must be towed facing
forwards, not faster than 80 km/h nor further than 100 km. In all other cases
and when the transmission is
defective, the front axle must be
raised off the ground.
Seek the assistance of a workshop.
After towing, unscrew the towing eye.
Insert cap with the flange into the
recess and fix cap by pushing.
Towing another vehicle
Remove the cap.
The towing eye is stowed with the
vehicle tools 3 220.
266Index.................................................... 221
A Accessories and vehicle modifications .......................... 202
Active emergency braking ..100, 171
Active head restraints ...................46
Adaptive cruise control .......100, 163
AdBlue .................................. 98, 144
Adjustable air vents ...................132
Advanced parking assist ............178
Airbag and belt tensioners ...........95
Airbag deactivation ................61, 95
Airbag label................................... 56 Airbag system .............................. 56
Air conditioning regular operation ................................ 133
Air conditioning system .............. 125
Air intake .................................... 133
Air vents...................................... 132
Antilock brake system ................ 151
Antilock brake system (ABS) .......97
Anti-theft alarm system ................35
Anti-theft locking system .............. 35
Appearance care ........................236
Armrest ................................... 51, 52
Ashtrays ....................................... 88 Automatic anti-dazzle ..................39
Automatic light control ...............115
Automatic locking ........................28Automatic transmission .............148
Autostop ............................... 99, 140
Auxiliary heater ........................... 132
B Battery discharge protection ......123
Battery voltage ........................... 105
BlueInjection ............................... 144
Bonnet ....................................... 204
Brake and clutch fluid .................242
Brake and clutch system .............96
Brake assist ............................... 154
Brake fluid .................................. 207 Brakes ............................... 151, 207
Breakdown.................................. 234
Bulb replacement ....................... 210
C Capacities .................................. 252
Catalytic converter .....................144
Central locking system ................24
Centre console lighting ..............123
Centre console storage ...............70
Changing tyre and wheel size ...224
Charging system .......................... 95
Child locks ................................... 29
Child restraint installation locations ................................... 65
Child restraints.............................. 62
Child restraint systems ................62
Cigarette lighter ........................... 87
267Climate control ............................. 16
Climate control systems .............124
Clock............................................. 84
Collision damage repair ..............258
Control indicators.......................... 94
Control of the vehicle .................135
Controls ........................................ 80
Convex shape .............................. 38
Coolant and antifreeze ...............242
Cruise control ....................100, 158
Cupholders .................................. 69
Curtain airbag system .................. 60
Curve lighting.............................. 116
D Danger, Warnings and Cautions ...4
Daytime running lights ...............116
Declaration of conformity ............255
DEF ............................................ 144
Deflation detection system ...........98
Diesel exhaust fluid ....................144
Diesel fuel system bleeding .......209
Diesel particle filter ...............98, 143
Door open .................................. 101
Doors ............................................ 30
Driver alert .................................. 192
Driver assistance systems ..........158
Driver Information Centre ...........101Driving characteristics and
towing tips .............................. 197
Driving hints ................................ 135
E Electric adjustment ......................38
Electrical system......................... 216
Electric parking brake ...96, 151, 152
Electric parking brake fault ...........96
Electronic climate control system 127
Electronic driving programmes ..149
Electronic key system ...................23
Electronic Stability Control and Traction Control system ....97, 155
End-of-life vehicle recovery .......204
Engine compartment fuse box ...217
Engine coolant ........................... 206
Engine coolant temperature ........97
Engine coolant temperature gauge ....................................... 92
Engine data ............................... 249
Engine exhaust .......................... 143
Engine identification ...................245
Engine oil ................... 205, 242, 246
Engine oil level monitor ................92
Engine oil pressure ......................98
Entry lighting .............................. 123
Event data recorders ..................261
Exit lighting ................................ 123
Exterior care .............................. 236Exterior light ................................. 99
Exterior lighting ....................13, 114
Exterior mirrors ............................. 38
F
Fault ........................................... 150
First aid ......................................... 76
First aid kit ................................... 76
Fixed air vents ........................... 133
Fog light ..................................... 100
Fog lights ................................... 211
Folding mirrors ............................. 38
Forward collision alert................. 169
Front airbag system .....................59
Front fog lights ........................... 120
Front pedestrian protection ........174
Front seats.................................... 46
Fuel............................................. 193
Fuel for diesel engines ..............195
Fuel for petrol engines ...............193
Fuel gauge ................................... 92
Fuses ......................................... 216
G Gauges ......................................... 90
Gear shifting ................................. 97
General information ...................197
Glass panel .................................. 43
Glovebox ..................................... 69
Glovebox cooler ......................... 133