31 51 010 Replacing radial seal for drive flange of front differential
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, 2007 BMW X3, and 2006 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
See 23 MANUAL TRANSMISSION , 31 FRONT AXLE , 33 REAR AXLE
- 23 0 020
- 31 5 130
- 33 1 150
Necessary preliminary tasks:
- Remove reinforcement plate, see 31 10 010 Removing and installing/replacing reinforcement plate .
- Remove front propeller shaft, see 26 11 000 REMOVING AND INSTALLING PROPELLER SHAFT (CARDAN UNIVERSAL JOINT) COMPLETELY .
Mark position of nut with respect to shaft with punch marks (arrow).
Lever out lockplate (1) with a suitable tool.
IMPORTANT:
Risk of damage!
Do not place special tool on threaded holes of drive flange.
Do not place special tool on threaded holes of drive flange.
Secure drive flange with special tool 23 0 020 against turning and release nut (1).
IMPORTANT:
Risk of damage!
Mount special tool only with longer screws (M10x30) on drive flange.
Mount special tool only with longer screws (M10x30) on drive flange.
Pull drive flange off drive shaft with special tool 33 1 150 .
Lever shaft seal (1) out of front differential with a suitable screwdriver (2).
Installation:
Drive in shaft seal with special tool 31 5 130 as far as it will go.
Coat sealing lips of new shaft seal (1) with front differential oil.
IMPORTANT:
Risk of damage!
Do not tighten nut beyond punch marks. Otherwise the clamping sleeve will be damaged.
Do not tighten nut beyond punch marks. Otherwise the clamping sleeve will be damaged.
Clean drive flange and attach.
Tighten down nut until punch marks on nut and shaft are aligned.
Install new lockplate (1).
After installation:
- Check front differential oil, see 31 50 ... Changing front differential oil .