37 11 010 Removing and Installing/Replacing Front Active Stabilizer
37 11 010 Removing and installing/replacing front active stabilizer
Warning!
Danger of poisoning if oil is ingested/absorbed through the skin!
Risk of injury if oil comes into contact with eyes and skin!
Important!
Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Close off pipe connections with plugs.
Note:
In case of disturbing noise coming from stabilizer, always run test module for active stabilizer first!
See: Service function-
In all warranty cases you must always provide a fault memory printout, even where there is no fault memory entry, with the defective part.
A film of grease on the anti-friction bearing in no way impairs the operational capability of the stabilizer.
Spring-type actuator only installed on E70!
- When converting the front axle stabilizer with spring-type actuator (1) to front axle stabilizer with dual piston (2), it is necessary to perform a recoding!
- Do not alter pressure relief valves. Stabilizer with dual piston: No pressure relief valves fitted!
Necessary preliminary tasks:
^ Remove front wheels
^ Remove front underbody protection
^ Remove front right wheel arch cover (front section)
^ Remove radiator air duct
^ Remove both brake air ducts with holder
^ Remove fan cowl
^ Remove heat exchanger from front axle support and tie up
^ Remove both anti-roll bar links from anti-roll bar
Remove radiator box from engine carrier, extend out, press upwards and support with workshop jack.
Installation:
Check rubber mounting of radiator box for correct seating.
Important!
Risk of damage!
First adjust minimum distance (A) = 3 mm between control line (1) and oscillating motor (2).
Then adjust control line (3) with minimum distance (B) = 8 mm to control line (1).
Mark installation position of control lines to oscillating motor.
Release banjo nuts (1) and remove control lines (2) from oscillating motor.
Seal control lines (2) and connections of oscillating motor with clean sealing plugs.
Installation:
Carry over marking of installation position to new part.
Control lines are protected against being mixed up by different thread diameters on the oscillating motor connection.
Tightening torque 37 14 18AZ.
Remove both protective caps (of red rubber with pull band).
Release screws (1).
Tightening torque 37 14 20AZ.
Remove both control lines (2) from upper retaining brackets and tie up.
Remove upper retaining brackets.
Remove stabilizer (3) with rubber mounts from lower retaining brackets.
Replacement: Remove both rubber mounts from stabilizer.
Important!
Rubber lips (1) must be situated as pictured between retaining brackets!
Installation:
Check anti-friction bearing (2) for damage, replace stabilizer if necessary (slight discharge of grease OK).
Keep contact face for rubber mount on antifriction bearing clean and free from oil and grease.
Check rubber mount for damage, replace if necessary.
Important!
To remove the risk of mix-up after removal of the control lines at the holders, observe the following:
- Holder in direction of travel, left: Stud bolt (1) arranged virtually centrally on the holder
- Holder in direction of travel, right: Stud bolt (1) arranged off-center to the front of the holder
- Align holders as pictured by way of additional lugs (2); both lugs point in direction of travel to right
After installation:
^ When converting the front axle stabilizer with spring-type actuator to front axle stabilizer with dual piston, it is necessary to perform a recoding
^ Fill and bleed hydraulic system
^ Check pipe connections for leaks
^ Carry out initial Dynamic Drive operation
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