Difference Between A Twelve-Point Bolt with Ribs and A Twelve-
Point Bolt without Ribs
The contact surfaces -arrow A- and -arrow B- are different on the
two-point bolts.
I - Twelve-point bolt with ribs -arrow A-
II - Twelve-point bolt without ribs -arrow B-
Caution
The wheel bearing must not be under load when the drive axle
threaded connection on the wheel side is loose.
If the wheel bearings are under the load of the vehicle weight,
the wheel bearing will be damaged. This reduces the service
life of the wheel bearings.
The drive axle bolt may be loosened maximum 90° when the
vehicle is standing on its wheels.
Vehicles without a drive axle must not be moved, otherwise the
wheel bearing will be damaged. If a vehicle must be moved,
be sure to note the following:
♦ Install an outer joint in place of the drive axle.
♦ Tighten the outer joint to 120 Nm.
Twelve-Point Bolt, Loosening
– With vehicle still resting on wheels, loosen 12-point bolt with
Socket - 24mm - T10361- maximum 90°, otherwise, wheel
bearing will be damaged.
– Raise vehicle enough that wheels hang freely.
– Apply the brakes (second technician required).
– Remove the twelve-point bolt -arrow-.
Twelve-Point Bolt, Installing
– Replace the 12-point bolt.
Note
Wheels must not yet touch the ground when tightening the drive
axle or the wheel bearing can be damaged.
– Apply the brakes (second technician required).
– Tighten the twelve-point bolt to 70 Nm.
– Lower the vehicle onto its wheels.
– Tighten the twelve-point bolt an additional 90°.
9.2 Twelve-Point Bolt without Ribs, Loosen‐
ing and Tightening, Drive Axle Threaded
Connection
Special tools and workshop equipment required
♦ Socket AF 24 mm - T10361A-
♦ Digital Torque Wrench - VAG1756A-
Jetta 2011 ➤ , Jetta 2013 ➤
Suspension, Wheels, Steering - Edition 08.2015
78 Rep. Gr.40 - Front Suspension
ProCarManuals.com
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