33 31 503 Lowering/raising rear axle support

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WARNING: Danger of injury!
Failure to comply with the following instructions may result in the vehicle slipping off the vehicle hoist and critically injuring other persons.
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 vehicle hoist.

Necessary preliminary tasks:

Remove REAR WHEELS .
Remove exhaust system. See REMOVING COMPLETE EXHAUST SYSTEM (B36, B38) or REMOVING COMPLETE EXHAUST SYSTEM (B48, B46) .
Remove TANK COVER on left and right.

Lowering:

Press brake pedal down to floor and secure with pedal support.

NOTE: The pedal support may only be released when the brake lines are reconnected.
This prevents brake fluid from emerging from the expansion tank and air from entering the system when the brake lines are opened.

Fig 1: Securing Brake Pedal With Pedal Support

G04754178

Courtesy of BMW OF NORTH AMERICA, INC.

Remove heat shield (1).

Fig 2: Heat Shield

G11648205

Courtesy of BMW OF NORTH AMERICA, INC.

Only for rear ride height sensor:

Disconnect connector (1).

Fig 3: Locating Rear Ride Height Sensor Connector

G11648208

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) of anti-roll bar links on left and right on trailing arm.

Fig 4: Screw On Trailing Arm

G11648256

Courtesy of BMW OF NORTH AMERICA, INC.

Release hollow nut (2).

Detach brake hose (1) on left and right from brake line.

Fig 5: Brake Hose And Hollow Nut

G11648209

Courtesy of BMW OF NORTH AMERICA, INC.

Support rear axle support (1) with workshop jack (2).

Fig 6: Supporting Rear Axle Support With Workshop Jack

G11648212

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) from rear axle support (2).

Lower rear axle support approx.10 cm.

Fig 7: Rear Axle Support And Screws

G11648213

Courtesy of BMW OF NORTH AMERICA, INC.

Raising:

Align rear axle support (1) and raise with workshop jack (2).

Fig 8: Supporting Rear Axle Support With Workshop Jack

G11648212

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down screws (1) on rear axle support (2).

Tightening torque 33 31 1AZ .

Fig 9: Rear Axle Support And Screws

G11648213

Courtesy of BMW OF NORTH AMERICA, INC.

Align brake hose (1).

Tighten down hollow nut (2).

Tightening torque 34 32 1AZ .

Fig 10: Brake Hose And Hollow Nut

G11648209

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down anti-roll bar links on left and right with screw (1) on trailing arm.

Tightening torque 33 55 2AZ .

Fig 11: Screw On Trailing Arm

G11648256

Courtesy of BMW OF NORTH AMERICA, INC.

Only for rear ride height sensor:

Insert connector (1) on ride height sensor.

Fig 12: Locating Rear Ride Height Sensor Connector

G11648208

Courtesy of BMW OF NORTH AMERICA, INC.

Install heat shield (1).

Fig 13: Heat Shield

G11648205

Courtesy of BMW OF NORTH AMERICA, INC.

Release pedal support.

Fig 14: Securing Brake Pedal With Pedal Support

G04754178

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work:

Bleed BRAKE SYSTEM .