LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2018 >> M4 2D Convertible, Automatic DCT Trans >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Axle - Repair -- M4 (F82 & F83) >> 31 11 Front Axle Carrier >> Replacing front axle support

Replacing front axle support

Special tools required: 

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.
CAUTION: Before lowering/removing front axle support:

Observe SAFETY INFORMATION on raising the vehicle.

In order to avoid damage to vehicle hoist, perform weight compensation on vehicle.

WARNING: Danger to life!
SECURE ENGINE IN INSTALLATION POSITION WITH SPECIAL TOOL to prevent it from falling down.

Necessary preliminary work: 

Removal: 

Left side only:

Slacken nut (1).

Remove jointed rod (2) from left wishbone.

G05778128Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

Undo track rod ends (2) from the swivel bearings on left and right.

G13691753Courtesy of BMW OF NORTH AMERICA, INC.

Unlock plug connections (1) and disconnect.

Loosen screws (2).

Remove the steering gear (3).

G13691754Courtesy of BMW OF NORTH AMERICA, INC.

Loosen screws (3).

Remove anti-roll bar (2).

Take front axle support down from workshop jack.

G13691755Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Use previous front axle support as a template for remounting or replacing small parts.

Position new front axle support (1) on the special tool 31 5 251 and secure with tensioning strap.

Position anti-roll bar (2) on front axle support (1).

Insert screws (3).

Part  : Replace nuts.

Tighten nuts.

Tightening torque 31 35 1AZ .

G13691755Courtesy of BMW OF NORTH AMERICA, INC.

Position steering gear (3) at front axle support.

Part  : Replace the screws (2) and nuts.

Tighten down screws (2).

Tightening torque 32 00 1AZ .

Position front axle support at vehicle.

Connect plug connections (1).

G13691754Courtesy of BMW OF NORTH AMERICA, INC.

Join track rod ends (2) at the swivel bearings on left and right.

Part  : Replace nut (1).

Tighten nut (1).

Tightening torque 32 21 3AZ .

G13691753Courtesy of BMW OF NORTH AMERICA, INC.

Position jointed rod (2) of ride height sensor on wishbone.

Part  : Replace nut (1).

Tighten nut (1).

Tightening torque 37 14 4AZ .

G05778128Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: