5 Series E34 525td (M51) TOUR
The following driving conditions may cause a delay in the warning being given in the event of a drop in tyre
pressure:
-
Heavy braking
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Rapid acceleration
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High rate of lateral acceleration
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Cornering (in a tight corner)
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Vehicle speed dropping below a minimum speed (the RPA only responds when a certain minimum speed has
been reached)
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Large difference in slip (between axles or between wheel on one side of vehicle)
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Initialisation not being completed in current speed range (see "Controls")
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Winter conditions
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Heavy changes in load (only vehicles with electronic height control)
The following operating conditions may cause a delay in the warning being given in the event of a drop in tyre
pressure:
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Driving with snow chains fitted
Driving with snow chains may impair the correct function of the RPA.
The system will work as normal again after the snow chains have been removed and the vehicle is driven for a
few minutes. (Repeat initialisation not necessary.)
Note: Do not perform initialisation when snow chains are fitted.
Initialisation and snow chains will cause incorrect adaptation values.
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Trailer towing
Initialisation should be performed when a trailer with a weight greater than approx. 300 kg is being towed.
Repeat the initialisation process after detaching or unloading the trailer.
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Old/new tyres
Note: Only fit tyres with the same tread depth!
Avoid fitting tyres with greatly different tread depth (from approx. 2 millimetres) on one axle. The different
diameters mean that the correct operation of the RPA is no longer guaranteed.
The following situations may cause unnecessary warnings:
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Initialisation not completed after a tyre has been replaced (old/new tyres, summer/winter tyres, change in
direction of rotation, or replacement of single defective tyre) tyre pressures have been changed
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Tyres have different levels of wear
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Frequent changes in load (only on vehicles with electronic height control)
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Tyres that have not been approved by BMW
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Damaged tyres, even if no loss of pressure can be detected (e.g. spin imbalance)
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Tyre has changed slightly during the running-in phase (settling)
In the following cases, the system will not emit a warning despite a drop in tyre pressure being detected:
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The same amount of pressure is lost in 2 or more tyres.
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Drops in tyre pressures caused by diffusion and affecting all 4 tyres equally
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If a tyre is damaged with a sudden loss of all pressure (tyre blow-out, warning is given too late)
SBT Run Flat Indicator All models
BMW AG - TIS
23.01.2013 11:53
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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