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IMPORTANT: Always check that the solenoid valves are clean during removal
and
installation.
Possible malfunctions if valves are contaminated:
Irregular operation
OBD incorrect entry
Poor exhaust gas values
Low engine performance
IMPORTANT: Risk of damage!
Do not clean solenoid valves with co
Necessary preliminary tasks
Remove driver's or passenger seat.
Set down front seat sideways on a suitable surface.
Disconnect plug connection (1).
Unfasten screws (2).
Tightening torque 67 31 1AZ.
Feed out drive unit for seat height adjustment (3) and remove.
Fig. 33: Unfastening Seat Height