BMW 325XI User Manual

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145
Run Flat tires*
Run Flat tires are labeled on the side-
wall with a circular symbol containing 
the letters RSC. Run Flat tires consist of 
self-supporting tires and special rims. 
The tire reinforcement ensures that the 
tire retains some residual safety in the 
event of pressure drop and driving 
remains possible to a restricted degree. 
The vehicle is equipped with Tire Pres-
sure Monitor (TPM) or Flat Tire Monitor, 
which indicate a flat tire.
Because the sides of Run Flat 
tires are reinforced, a drop in infla-
tion pressure usually cannot be 
detected on the outside.
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Flat tire
If there is a tire failure, the red warning 
lamp symbol lights up. This visual alert 
is accompanied by an acoustic warning 
signal.
Additional information on the Tire Pres-
sure Monitor (TPM) or Flat Tire Monitor 
is found beginning on page 
Reduce vehicle speed carefully to 
under 50 mph / 80 km/h, avoiding hard 
brake applications and steering maneu-
vers.
If the defective wheel is not immedi-
ately recognizable on the outside, 
check the tire pressure on all four 
wheels.
Have Run Flat tires replaced by 
your BMW center. In the interest 
of safety, Run Flat tires should not be 
repaired. Your BMW center has the 
information needed for working with 
Run Flat tires and is equipped with the 
necessary special tools.
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If appropriate, please consult your 
BMW center to reequip your vehi-
cle from summer to winter tires – or vice 
versa.
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Driving with a damaged tire
Run Flat tires allow you to continue 
driving to a restricted degree at a maxi-
mum speed of 50 mph / 80 km/h 
depending on the cargo load and the 
extent of tire damage. You can deter-
mine the distance you may continue 
driving on the basis of the following val-
ues:
> Tire inflation pressure of 
0 psi/0 kilopascal (kPa):
approx. 100 miles/150 km
> Tire inflation pressure of 
approx. 7-15 psi/50-100 kPa:
approx. 300 miles/500 km
> Tire inflation pressure greater than 
15 psi/100 kPa:
approx. 600 miles/1,000 km.
Drive cautiously. Do not exceed a 
speed of 50 mph / 80 km/h. Be 
aware that vehicle handling will be 
altered when there is a loss in inflation 
pressure. Anticipate, e.g., reduced 
tracking during braking, longer braking 
distances, and changed steering char-
acteristics.
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