Removing Wheel Bearing Housing

Information 

• If assembly work was performed or parts replaced that affect the vehicle height, a complete wheel alignment is necessary. 
• Protect electric line when removing and installing the spring strut on vehicles with PASM. 
• Do not lift/transport the spring strut/vibration damper at the electric lines. 
• The ignition must be switched off before disconnecting the plug connection (PASM) for the spring strut. 
• The spring strut and wheel bearing housing are removed from the vehicle together. 
• A second mechanic is needed in order to remove the spring strut/wheel bearing housing. 

1. Disconnect plug connection on the speed sensor.
2. Remove retaining bracket for brake hose/speed sensor line and wear indicator.
3. Remove connecting link at the anti-roll bar. Only for vehicles without PDCC. 
4. Vehicles with PDCC:  Remove connecting link (PDCC actuator) at the spring strut holder.
   Fig 1: Locating Connecting Link Mount (PDCC Actuator)

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5. Screw off linkage for height sensor -1-  on the lower trailing arm.
   Fig 2: Identifying Height Sensor Linkage

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6. Loosen tie-rod ball -Step  1- and lower trailing arm -Step  2- at the wheel bearing housing and press off the ball joints using special tool press-off tool 9560  .
   Fig 3: Removing Ball Joint

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7. Disconnect plug connection for PASM in -holder-  (only on vehicles with PASM).
   Fig 4: Identifying PASM Plug Connection Installation Position

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8. Mark the installation position of the spring-strut mount (position of collar nuts -1-2-3-  ). Loosen lock nuts on the spring-strut mount.
   Fig 5: Identifying Spring-Strut Mount Installation Position

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9. For all-wheel drive vehicles, attach protection to the drive shaft (drive shaft remains fitted on the front-axle final drive).
10. Pull out/remove spring strut with wheel bearing housing.
11. Loosen clamped connection between spring strut/wheel bearing housing. Vehicles without PDCC:  Remove connecting link. Counter with an open-ended wrench when doing this. Vehicles with PDCC:  Remove hexagon-head bolt (M12 x 70) and lock nut.
12. Remove spring strut from wheel bearing housing.
    1. 12.1. Carefully secure the wheel bearing housing (not the spring strut!) on a work bench.

       Remove spring strut from wheel bearing housing.