5 Series E39 520i (M52) SAL
refer to 37 00 ... Information on air
spring strut.
a)
Overload
b)
Failsafe on air supply unit
defective
c)
Relay defective
d)
Air supply unit defective
e)
Line/air tank defective
f)
Both height setting sensors
mechanically defective (bracket,
control rod bent)
g)
Both air springs defective
h)
One of lines (to air springs/air
reservoirs) on both sides
defective
a)
Partially unload vehicle
b)
Replace failsafe
c)
Replace relay
d)
Replacing air supply unit
e)
Check lines (in visible area), air
tank and screw connections
(first on distributor block and air
tank, then on pneumatic spring)
with leak tester spray (BMW
Parts Service) and replace if
necessary.
f)
If necessary, replace height
setting sensor, bracket and
control rod
g)
Replace both air springs
h)
Replace lines
* Vehicle does not rise in response
to loads.
a)
Overload
b)
Failsafe on air supply unit
defective
c)
Air supply unit defective
d)
Both height setting sensors
mechanically defective (bracket,
control rod bent)
e)
Lines on both sides blocked or
defective
a)
Partially unload vehicle
b)
Replace failsafe
c)
Replacing air supply unit
d)
If necessary, replace height
setting sensor, bracket and
control rod
e)
Blow out lines and replace if
necessary
* One side of vehicle too low.
If the vehicle was driven in this
condition,
refer to 37 00 ... Information on air
suspension.
a)
Height setting sensor
mechanically defective (bracket,
control rod bent)
b)
Line/air tank defective
c)
Air supply unit defective
d)
Air spring defective
e)
Line defective
a)
If necessary, replace height
setting sensor, bracket and
control rod
b)
Check lines (in visible area), air
tank and screw connections
(first on distributor block and air
tank, then on pneumatic spring)
with leak tester spray (BMW
Parts Service) and replace if
necessary.
c)
Replacing air supply unit
d)
Replace air spring
e)
Replace line
* Vehicle only rises on one side in
response to load.
RA Troubleshooting on level control system
BMW AG - TIS
30.01.2013 11:50
Issue status (12/2007) Valid only until next DVD is issued
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