33 31 503 Lowering/raising rear axle support

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

WARNING:

Danger of injury!

Failure to comply with the following instructions may result in the vehicle slipping off the lifting platform, which may result in critical injuries.

Before lowering/removing the rear axle carrier, it is essential to place a minimum load of 100 kg in the luggage compartment to prevent the vehicle from toppling/slipping off the lifting platform!

When supporting components, make sure that

the vehicle can no longer be raised or lowered
the vehicle does not lift off the locating plates on the lifting platform

IMPORTANT: Before lowering/removing rear axle support:
Observe safety information for raising the vehicle
In order to avoid damage to vehicle hoist, perform weight compensation on vehicle.

NOTE: If the rear axle support is detached from the body, it is necessary after reinstallation to carry out a wheel/wheel alignment check.

Necessary preliminary tasks:

Remove and tie back PROPELLER SHAFT ON REAR AXLE FINAL DRIVE .
Undo shock absorber on the left and right from the trailing arm. See REPLACING REAR SHOCK ABSORBER or REPLACING REAR SHOCK ABSORBER (ADAPTIVE M SUSPENSION) .

IMPORTANT:

Risk of damage!

Brake hose must not be exposed to tensile loads.

Undo screws (1) on the left and right of the trailing arm and remove the holder.

Tightening torque 34 32 4AZ .

Fig 1: Identifying Screws On Trailing Arm

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Disconnect the PLUG CONNECTION at the ride height sensor.

Position the support (1) at the rear of the rear axle support.

Position the support (2) in the bore at the front of the rear axle support!

Support rear axle support using workshop jack and special tool 31 5 250 .

Fig 2: Supporting Rear Axle Carrier Using Workshop Jack And Special Tool (31 5 250)

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IMPORTANT: The center of gravity of the rear axle must be positioned centrally over the workshop jack.
Tie down rear axle support 33 5 206 to the special tool using a tensioning strap 31 5 250 !

Release screws (1).

Undo nuts (2) and remove compression strut.

Tightening torque 33 33 1AZ .

Slowly lower rear axle support.

Installation note:

Check threads for damage; if necessary, repair with HELICOIL THREAD INSERTS .

Check seating of coil springs with spring pads, correct if necessary.

Fig 3: Identifying Tension Strut Nut And Screws

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Installation note:

Check threaded bolts for damage and replace if necessary.

Tightening torque 33 33 2AZ .

Fig 4: Locating Threaded Bolt

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