33 21 000 Removing and installing/replacing left or right output shaft (on 2-flow exhaust system)

WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Remove REAR WHEEL .

IMPORTANT: Expand anti-twist lock sufficiently to avoid damaging thread when releasing collar nut.

Fig 1: Identifying Collar Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Release collar nut (1), activate handbrake for this purpose.

Installation:

Replace collar nut, oil collar nut/wheel bearing contact surface only and tighten down.

No oil permitted on thread of shaft journal or collar nut.

Tightening torque 33 41 1AZ .

Secure collar nut by positive peening on flat areas of output shaft.

E91, E93: Remove trailing link (on rear axle).

Except M3: Lower exhaust system in rear area.

M3: REMOVE final muffler.

Release bolts and remove with washers (1).

Press output shaft off drive flange using a suitable tool; if necessary, raise wheel carrier with workshop jack approx. 20 mm.

Installation:

Fig 2: Locating Output Shaft Bolts And Washers

Courtesy of BMW OF NORTH AMERICA, INC.

Before installing output shaft, make sure that drive flange is fully engaged in rear differential.

Replace bolts and washers (1).

Tightening torque 33 21 1AZ .

Press OUTPUT SHAFT OUT OF DRIVE FLANGE and remove towards center of vehicle.

After installation

Check that output shaft is correctly seated in rear differential.

Applies to four-wheel drive only:

Replacement only

Control-module functions
Perform functional check of transfer box (calibration)