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Removing and installing drive shaft with constant velocity joint > < Loosening and tightening twelve-point head bolt, with ribbing, securing drive shaft

Golf Mk5

Loosening and tightening twelve-point head bolt, without ribbing, securing drive shaft
Loosening and tightening twelve-point head bolt, without ribbing, securing drive shaft
Special tools and workshop equipment required
   
t  Socket, 24 mm -T10361-
  W00-10516
t  Angle wrench -V.A.G 1756-
  W00-0449
Distinguishing features between twelve-point head bolt with ribbing and twelve-point head bolt without ribbing.
The twelve-point head bolt are only distinguishable on the contact surfaces -arrow A- and -arrow B-.
I - Twelve-point head bolt with ribbing -arrow A-
II - Twelve-point head bolt without ribbing -arrow B-
  Caution
Wheel bearings must not be subjected to load after bolt securing drive shaft to wheel hub has been loosened.
If wheel bearings are loaded with weight of vehicle, bearing will be damaged. This reduces the service life of the wheel bearing.
It is not permissible to turn drive shaft bolt more than 90° anti-clockwise if vehicle is standing on the wheels.
Do not attempt to move the vehicle without the drive shafts fitted as this would damage the wheel bearing. If a vehicle nevertheless has to be moved, comply with the following:
t  Install an outer joint instead of the drive shaft.
t  Tighten outer joint to 120 Nm.
Loosening 12-point bolt
–  To avoid damage to wheel bearing, do not loosen 12-point bolt using 24 mm socket -T10361- further than 90° with vehicle still standing on its wheels.
–  Raise vehicle so that wheels are off the ground.
–  Have second mechanic apply brakes.
  N40-10569
–  Remove 12-point bolt -arrow-.
Fitting 12-point bolt
–  Renew 12-point bolt.
  Note
The wheels must not be in contact with the ground when the drive shaft bolt is tightened; otherwise, the wheel bearing will be damaged.
–  Have second mechanic apply brakes.
–  Tighten 12-point bolt to 200 Nm.
–  Lower vehicle onto its wheels.
–  Turn 12-point bolt 180° further.
  A42-0248

Removing and installing drive shaft with constant velocity joint > < Loosening and tightening twelve-point head bolt, with ribbing, securing drive shaft