7 Series E38 750iL (M73) SAL
37 90 ...
Troubleshooting on level control system
Condition
Cause
Remedy
Actual height setting deviates from
nominal value
Adjustment not O.K.
Adjust height setting,
refer to 37 12 010
Tail of vehicle lowers below nominal
height setting when loading with the
engine running
a)
Vehicle overladen
b)
ATF level too low
c)
Control rod mounting not O.K.
d)
Lines damaged
e)
Pump pressure too low
f)
Control valve defective
g)
Spring strut shock absorber
defective
a)
Check loading, if necessary
reducing to permitted axle load
b)
Correct the oil level
c)
Repair control rod mount and
adjust height setting,
refer to 37 12 010
d)
Check lines and replace if
necessary
e)
Check pump,
refer to 37 21 005
f)
Check control valve,
refer to 37 21 011
g)
Check spring strut shock
absorber and replace if
necessary,
refer to 37 12 100
Tail of vehicle fails to lower to
nominal height setting when being
unloaded
a)
Control rod mounting not O.K.
b)
Lines damaged
c)
Control valve defective
d)
Spring strut shock absorber
defective
e)
Pump pressure too low
a)
Repair control rod mount and
adjust height setting,
refer to 37 12 010
b)
Check lines and replace if
necessary
c)
Check control valve,
refer to 37 21 011
d)
Check spring strut shock
absorber and replace if
necessary,
refer to 37 12 100
e)
Check pump,
refer to 37 21 005
Vehicle suspension extremely hard
a)
Spring strut shock absorber
defective
RA Troubleshooting on level control system
BMW AG - TIS
20.02.2013 23:21
Issue status (12/2007) Valid only until next DVD is issued
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