BMW 318D, Owner'S Handbook Manual

Page: 355 / 430

ceed the speed of 60 km/h, 35 mph. If the
trailer starts to snake, brake immediately and
make the necessary steering corrections as
carefully as possible.
Maximum speed
If a tyre is damaged you can continue your jour‐
ney, but do not exceed a maximum speed of
80 km/h, 50 mph.
Continuing a journey with a flat tyre
Note the following if you continue a journey with
a flat tyre:
1. Avoid heavy braking and sudden steering
manoeuvres.
2. Do not exceed a speed of 80 km/h, 50 mph.
3. As soon as there is an opportunity, check the
tyre inflation pressure in all four tyres.
If all four tyres are inflated to the correct tyre
inflation pressures, the runflat indicator might
not have been initialised. In this case initialise
the system.
Possible driving distance with a deflated
tyre
The possible driving distance varies depending
on the load and stresses the vehicle is subjected
to, for example speed, the nature of the road sur‐
face, outside temperature. The driving distance
may be shorter or, if a more careful driving style
is adopted, may also be longer.
If the vehicle is moderately loaded and used un‐
der favourable conditions, it is possible to travel
up to 80 km, 50 miles.
Driving properties with damaged tyres
On a journey with damaged tyres, handling char‐
acteristics change and may result in the following
situations, for example:
▷ The vehicle losing traction more quickly.
▷ Longer braking distances.
▷ Different self-steering characteristics.
Adapt your driving style. Avoid abrupt steering or
driving over obstacles, for example kerbs or pot‐
holes.
Final tyre failure
Vibration or loud noises during the journey may
be an indication that the tyre has finally failed.
Reduce your speed and stop the vehicle. Parts of
the tyre could detach, which might lead to an ac‐
cident.
Do not continue driving, but instead contact a
Service Partner of the manufacturer or another
qualified Service Partner or a specialist work‐
shop.
System limits
In the following situations, the system could be
slow to respond or operate incorrectly:
▷ A natural, even loss of tyre inflation pressure
in all four tyres that occurs over time is not
detected. Consequently, check the tyre infla‐
tion pressure at regular intervals.
▷ No warning can be given in the event of sud‐
den tyre failure caused by external factors.
▷ If the system has not been initialised.
▷ When driving on snow-covered or slippery
surfaces.
▷ Dynamic driving style: drive wheels slipping,
high lateral acceleration.
▷ When driving with snow chains.
Wheel change
General
For run-flat tyres or when using a flat tyre kit, it is
not always necessary to change a wheel immedi‐
ately if tyre inflation pressure is lost due to a flat
tyre.
If required, the tools for changing wheels are
available as optional accessories from a Service
Partner of the manufacturer, another qualified
Service Partner or a specialist workshop.
Seite 355
Wheels and tyres
MOBILITY
355
Online Edition for Part no. xxx - VI/19