BMW z4 2005 Manual Do Utilizador

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Wheels and tires
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Run Flat tires fitted
Run Flat tires are labeled on the sidewall with a 
circular symbol containing the letters RSC. 
Run Flat tires consist of self-supporting tires 
and special rims. The tire reinforcement 
ensures that driving remains possible to a 
restricted degree in the event of pressure drop 
or even if the tire is deflated.
Wheel and tire replacement
Have new wheels and tires mounted only 
by a BMW center or specialized tire shop 
that works according to BMW requirements 
with the appropriately trained personnel. Work 
that is improperly carried out could result in 
consequential damage and pose safety haz-
ards. Make sure that the new wheels are bal-
anced.
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BMW advises against using retreaded 
tires, since driving safety may be 
impaired. This is due to possible variations in 
casing structures and, in some cases, to their 
extreme age, factors which can lead to a 
decrease in their durability.
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The correct wheels and tires
BMW recommends using only wheels 
and tires that have been approved by 
BMW for your particular vehicle model, as oth-
erwise body contact and serious accidents can 
result despite the use of the same nominal size, 
e.g. due to manufacturing tolerances. If non-
approved wheels and tires are used, BMW can-
not evaluate their suitability, and therefore can-
not be held liable for driving safety.
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Your BMW center can provide you with infor-
mation about the correct wheel and tire combi-
nations for your vehicle.
The correct wheel and tire combination also 
affects other systems which would otherwise 
be impaired, for example ABS or DSC.
To maintain good handling and vehicle 
response, use only tires of a single brand and 
tread configuration. In the event of a flat tire, 
remount the previous wheel and tire combina-
tion as soon as possible.
Recommended tire brands
BMW tests certain tire brands for each tire size, 
classifies them as road-safe and approves 
them. You can best find out about these at a 
specialized shop, particularly your BMW center. 
Observe any country-specific regulations, e.g. 
on making a corresponding entry in the vehicle 
documents.
The factory-approved radial-ply tires are 
matched to your vehicle and have been 
selected to provide optimum safety and driving 
comfort when used properly.
Run Flat tires
When mounting new tires or replacing summer 
tires with winter tires, or vice versa, use Run Flat 
tires since no spare wheel is available in the 
event of a flat. Your BMW center will be glad to 
provide you with more information.
For safety reasons, BMW recommends to 
have Run Flat tires replaced, not repaired, 
if they are damaged.
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Special characteristics of winter tires
BMW recommends the use of winter tires for 
operation under winter road conditions. While 
all-season tires with M+S designation provide 
better winter traction than summer tires, they 
generally do not achieve the full performance of 
winter tires.
Observing speed ratings 
Never exceed the maximum speed for 
which the winter tires are rated. Unpro-
fessional attempts by laymen to service tires 
Online Edition for Part-No. 01 41 0 158 704 - © 10/04 BMW AG