Or: seal dama
ged wheel with the
breakdown set and inflate → page 374.
4. If there is no visible damage, drive slow-
ly and cautiously to the nearest suitably
qualified workshop in order to have the
vehicle checked.
Foreign body stuck in tyre
A foreign body is stuck in the tyre or be-
tween the tread blocks.
1. Leave the foreign body in the tyre if it
has entered the inner tyre. Foreign bod-
ies that are stuck between the tyre
tread blocks can be removed.
2. Changing a damaged wheel
→ page 364. If necessary, seek assis-
tance from a suitably qualified work-
shop.
Or: seal damaged wheel with the
breakdown set and inflate → page 374.
3. Check and adjust the tyre pressure.
4. Go to a suitably qualified workshop.
Tyres lose grip
The vehicle suers from loss of grip when
cornering and breaks away. The braking
distance is longer and Traction Control
(TCS) and anti-lock brake system (ABS)
intervene earlier.
The tyre may be too worn to guarantee suf-
ficient grip → page 353.
1. Drive slowly and cautiously to the near-
est suitably qualified workshop in order
to have the vehicle checked.
Wheel bolts are dicult to loosen
The wheel bolt can corrode over time. As
a result, it is dicult to loosen the wheel
bolts,
1. Seek the assistance of a suitably quali-
fied workshop or drive slowly and cau-
tiously to the nearest suitably qualified
workshop in order to have the vehicle
checked.
WARNING
If you notice unusual vibration or the vehi-
cle pulling to one side while the vehicle is
in motion, this ma
y indicate that one of
the tyres is damaged.
Tyre damage can cause you to lose con-
trol of the vehicle, which c
an lead to seri-
ous accidents and fatal injuries.
·
Slow down immediately and stop as
soon as the trac situation permits and
it is safe to do so.
·
Check the tyres and wheel rims for
damage.
·
Never drive on if tyres or wheel rims are
damaged. Instead, seek assistance
from a suitably qualified workshop.
·
If there is no visible damage, drive slow-
ly and cautiously to the nearest suitably
qualified workshop in order to have the
vehicle checked.
Tyre Pressure Loss Indicator
Function of the Tyre Pressure
L
oss Indicator
The Tyre Pressure Loss Indicator warns
the driver if the tyre pressures are too
low.
T
he Tyre Pressure Loss Indicator is a Tyre
Pressure Monitoring System and uses data
from the ABS sensors to compare, among
other things, the speed of rotation and thus
the rolling circumference of the individual
wheels while driving.
If a tyre is losing air or the tyre pressure is
too low, the rolling circumference is re-
duced and the rotational speed increases.
The Tyre Pressure Loss Indicator shows
a change in rolling circumference of the
tyres with the
indicator lamp in the in-
strument cluster.
However, the following situa
tions can also
result in a changed rotational speed:
— If the tyre pressure has been changed.
— If the tyre has structural damage.
— If the vehicle is loaded more heavily on
one side.
— If snow chains have been fitted.
— If a temporary spare wheel has been fit-
ted.
356
Wheels and tyres