Vehicle care179The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
9 Warning
For specific tyres the
recommended tyre pressure as
shown in the tyre pressure table may exceed the maximum tyre
pressure as indicated on the tyre.
Never exceed the maximum tyre
pressure as indicated on the tyre.
Temperature dependency
The 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
1.5 psi 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.
Control indicator w 3 70.
In this case reduce speed, avoid
sharp cornering and strong braking.
Stop at next safe opportunity and
check tyre pressure.After adjusting tyre pressure initialise
system to extinguish the control
indicator and restart 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 tyre has been refitted, check the
tyre pressure with cold tyres and
initialise the system.Caution
Deflation detection system warns
just about low tyre pressure
condition and does not replace
regular tyre maintenance by the
driver.
System initialisation
After tyre pressure correction or
wheel change, the system must be
initialised to learn new circumference
reference values:
221Control of the vehicle ...................98
Controls ........................................ 54
Convex shape .............................. 20
Coolant and antifreeze ...............199
Cruise control ............................ 119
Cupholders .................................. 46
Curtain airbag system .................. 38
Curve lighting................................ 82
D Danger, Warnings and Cautions ...4
Daytime running lights .................82
Declaration of conformity ............210
DEF ............................................ 106
Deflation detection system ...........70
Diesel exhaust fluid ....................106
Diesel fuel system bleeding .......168
Door open .................................... 72
Door panel storage .......................47
Doors ............................................ 17
Driver alert .................................. 153
Driver assistance systems ..........119
Driver Information Centre .............72
Driving characteristics and towing tips .............................. 158
Driving hints .................................. 98
E
Electric adjustment ......................20
Electrical system......................... 173
Electric parking brake ...........68, 114Electric parking brake fault ...........68
Electronic climate control system 91
Electronic driving programmes ..111
Electronic key system ...................10
Electronic Stability Control and Traction Control system ....69, 117
Emergency call ............................. 77
End-of-life vehicle recovery .......161
Engine compartment fuse box ...174
Engine coolant ........................... 164
Engine coolant temperature ........69
Engine coolant temperature gauge ....................................... 63
Engine data ............................... 205
Engine exhaust .......................... 105
Engine identification ...................202
Engine oil ................... 163, 199, 203
Engine oil level monitor ................64
Engine oil pressure ......................70
Entry lighting ................................ 87
Event data recorders ..................215
Exhaust filter ......................... 69, 105
Exit lighting .................................. 87
Exterior care .............................. 193
Exterior light ................................. 71
Exterior lighting ............................. 79
Exterior mirrors ............................. 20F
Fault ........................................... 112
Fixed air vents ............................. 96
Floor mats................................... 195
Folding mirrors ............................. 20
Forward collision alert................. 134
Front airbag system .....................37
Front fog lights ...............71, 84, 170
Front pedestrian protection ........136
Front seats.................................... 27
Front turn lights .......................... 170
Fuel............................................. 155
Fuel for diesel engines ..............155
Fuel for petrol engines ...............155
Fuel gauge ................................... 63
Fuses ......................................... 173
G Gauges ......................................... 62
Gear selection ........................... 110
Gear shifting ................................. 69
General information ...................158
Glass panel .................................. 25 Glovebox ..................................... 46
H Halogen headlights ....................169
Hand brake ................................. 114
Hazard warning flashers ..............84
Headlight flash ............................. 81
Headlight range adjustment ........81
