BMW 2004 745i Sedan Manual Do Proprietário

 205

You will recognize run-flat tires by a circu-
lar symbol containing the letters RSC on 
the side of the tire. They consist of self-
contained tires and special rims. The tire 
reinforcement ensures that the tire retains 
some residual safety in the event of pres-
sure drop and driving remains possible 
to a restricted degree. The vehicle is 
equipped with a Flat Tire Monitor which 
indicates punctures. 

The reinforcement on the flanks of the 
tires means that it is usually not pos-

sible to detect an air loss from outside.

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If you have a flat tire, the indicator lamp 
symbol in the Check Control will light up in 
red, and a message will appear. In addition, 
a gong sounds. 
You can find more detailed information on 
the Flat Tire Monitor on page 

Reduce vehicle speed carefully to under 
50 mph/80 km/h, avoiding hard brake 
applications and steering maneuvers. 

If the defective wheel is not recognizable 
as such immediately, check the inflation 
pressure in all four tires. 

For reasons of safety, do not arrange 
for run-flat tires to be repaired. Your 

BMW center has the information needed 
for working with these tires and is equipped 
with the necessary special tools.

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Driving on run-flat tires can continue 
depending on the vehicle load and the 
severity of the tire damage, at a maximum 
speed of 50 mph/80 km/h. You can deter-
mine the possible mileage for continued 
driving on the basis of the following general 
indications: 

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Tire inflation pressure 0 psi/kPa: 
With empty vehicle approx. 90 miles/
150 km 
With full payload approx. 30 miles/
50 km 

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Tire inflation pressure 7 psi/50 kPa to 
15 psi/100 kPa: 
Approx. 300 miles/500 km 

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Tire inflation pressure greater than 
15 psi/100 kPa: 
Approx. 600 miles/1,000 km. 

Drive reservedly and do not exceed a 
speed of 50  mph/80  km/h. In the case 

of air loss, you can expect changes in vehi-
cle handling such as reduced lane stability, 
longer braking distances, and changes in 
self-steering properties.

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The battery is 100 % maintenance-free, i.e., 
the electrolyte will last for the life of the bat-
tery when the vehicle is operated in a tem-
perate climate. 

For all questions that regard the bat-
tery, please consult your BMW cen-

ter.

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Only charge the battery in the vehicle via 
the terminals in the engine compartment 
with the engine off. Connections, refer to 
Jump-starting on page 

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Online Edition for Part No. 01 41 0 157 670 - © 08/03 BMW AG