BMW 2005 645Ci Convertible Manual Do Proprietário

172

You will recognize run-flat tires by the circular 
symbol containing the letters RSC on the side-
wall.
Run-flat tires consist of self-contained tires and 
special rims. The sidewall reinforcement 
ensures that the tire retains some residual 
safety in the event of pressure drop and driving 
remains possible to a restricted degree.

Only have new wheels and tires mounted 
by a BMW center or a specialized tire 

dealer which works with personnel trained in 
accordance with BMW specifications. If this 
work is performed inexpertly, there is a danger 
of damage and associated safety risks. Make 
sure that the new wheels are balanced.

<

BMW does not recommend the use of 
retread tires, as otherwise driving safety 

may be reduced. Possible variations in the 
design and the age – which could be substan-
tial – of the carcasses can lead to more rapid 
wear.

<

If you switch from summer to winter tires, or 
vice versa, use run-flat tires, as in the event of a 
flat tire there is no spare tire available. Your 
BMW center will be glad to advise you.

For safety reasons, BMW recommends 
that you do not have damaged run-flat 

tires repaired; they should be replaced.

<

BMW recommends that you use only 
wheel and tire combinations that BMW 

has tested and approved for your particular 
vehicle. Variations in factors such as manufac-
turing tolerances mean that even wheels and 
tires with identical official size ratings could 
actually have different dimensions than the 
approved units – these differences could lead to 
body contact, and with it the risk of severe acci-
dents. If non-approved wheels and tires are 
used, BMW cannot evaluate their suitability, 
and therefore cannot be held liable for driving 
safety.

<

You can find out the right wheel-tire combina-
tion from your BMW center.
The right wheel-and-tire combination is 
another vital factor in ensuring reliable opera-
tion of various vehicle systems such as ABS 
and DSC.
To maintain good handling and vehicle 
response, use only tires of a single tread config-
uration from a single manufacturer. After a flat 
tire, always remember to have the specified 
wheel and tire combination remounted on the 
vehicle as soon as possible.

BMW tests certain tire brands for each tire size, 
classifies them as road-safe and approves 
them. Consult your BMW center for more infor-
mation. Observe any country-specific regula-
tions, e.g. on making a corresponding entry in 
the vehicle documents.
The factory-mounted tires have been specially 
selected to provide optimized performance 
when installed on your vehicle; if properly cared 
for, they will provide a combination of safety and 
excellent ride comfort.

BMW recommends winter tires for use in cold 
winter driving conditions. Although all-season 
M+S tires provide better winter traction than 
summer tires, they generally fail to provide the 
same levels of cold-weather performance as 
winter tires.

Online Edition for Part-No. 01 41 0 158 445 - © 09/04 BMW AG