Wheel Hub Splines/Axle Shaft - Modified
Group: 40Number: 95-03
Date: Oct 4, 1995
Subject:
Modified Wheel Hub Splines
Modified Axle Shaft Removal/Installation Procedure
Model(s):
Passat GLX 1995 -->
File this Technical Bulletin in Repair Manual No: W42 012 194 108
The Repair Manual pages are new and will be integrated into the next Repair Manual update.
Wheel hub with compressed splines
(vehicles with Plus suspension)
The wheel hub has been modified so that the peaks of the splines -arrow- are compressed slightly. Backlash between the splines of the outer constant velocity joint and the wheel hub has been eliminated. It is no longer possible to remove the axle shaft without tools.
The modification to the splines also requires a new method of tightening the 12-point axle nut.
The new wheel hubs are supplied as replacement parts. When these new hubs are used, no locking fluid is necessary.
Axle shaft, removing and installing (Plus suspension)
Removing
CAUTION!
If a vehicle has to be moved on wheels after removing the axle shaft, install an outer CV joint and tighten to 50 Nm (37 ft.lb) or damage to the wheel bearing may result.
- Lift vehicle until load on front axle is relieved.
- Loosen and remove 12-point axle nut.
- Disconnect axle shaft from transmission drive flange.
- Remove bolts -arrow A-.
- Remove bolt -arrow B-.
- Press axle shaft out
CAUTION!
Ensure there is adequate space as necessary to press the axle shaft out
- Remove axle shaft.
Installing
- Remove any paint residue, adhesive compound or corrosion on threads/splines of outer CV joint.
- Install axle shaft.
- Guide outer CV joint into wheel hub splines as far as possible.
- Coat contact surfaces of 12-point nut with oil
- Install 12-point nut and tighten until outer CV joint is seated in wheel hub.
- Connect ball joint to control arm
^ Tightening torque: 35 Nm (26 ft.lb)
- Connect axle shaft to transmission drive flange
^ Tightening torque: 45 Nm (33 ft.lb)
- Apply brakes (second person necessary).
CAUTION!
Lower vehicle if necessary, but not far enough to let the wheels touch the ground or the wheel bearing will be damaged.
- Tighten 12-point nut to 200 Nm (148 ft.lb), then loosen one turn.
- Tighten 12-point nut to 50 Nm (37 ft.lb).
- Mark 12-point nut with a line at one of points -arrow A-.
- Mark a second line on edge of wheel hub above next point on nut -arrow B-.
Note:
The distance from one point to the next on the 12-point nut is equivalent to 30°.
- Tighten 12-point nut further until marked points align.