5 Series E39 M5 (S62) SAL
37 90 ...
Troubleshooting on level control system
Faults marked with * can be limited with BMW Diagnosis System.
1. Height setting not O.K.
Fault
Cause
Remedy
Vehicle too low when stationary but
rises to correct height when vehicle
is started.
a)
Stationary for too long
b)
Large temperature drop while
vehicle stationary
c)
Line defective
d)
Air supply unit defective
e)
Both air spring struts defective
f)
Both lines defective
a)
No fault (system-related)
b)
No fault (system-related)
c)
Check lines (in visible area) and
screw connections (first on
distributor block, then on spring
strut shock absorber) with leak
tester spray (BMW Parts
Service) and replace if
necessary
d)
Replacing air supply unit
e)
Check air spring struts for
leaks,
refer to 3712 ...
and replace if necessary
f)
Replace lines
One side of vehicle too low when
stationary, but rises again after
vehicle starts.
a)
Line defective
b)
Air supply unit defective
c)
Air spring strut defective
d)
Line defective
a)
Check lines (in visible area) and
screw connections (first on
distributor block, then on spring
strut shock absorber) with leak
tester spray (BMW Parts
Service) and replace if
necessary
b)
Replacing air supply unit
c)
Check air spring strut for leaks,
refer to 3712 ...
and replace if necessary
d)
Replace line
* One side of vehicle too high (does
not lower in response to control
unit).
a)
Height setting sensor
mechanically defective (bracket,
control rod bent)
b)
Lines interchanged
c)
A line is blocked
RA Troubleshooting on level control system
BMW AG - TIS
22.02.2013 00:06
Issue status (12/2007) Valid only until next DVD is issued
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