Special tools and workshop equipment required
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.

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 90º 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:
Loosening the Twelve-Point Bolt
Twelve-Point Bolt, Installing

Note
Wheels must not yet touch the ground when tightening the drive axle or the wheel bearing can be damaged.
Twelve-Point Bolt without Ribs, Loosening and Tightening, Drive Axle Threaded Connection
Special tools and workshop equipment required
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.

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 90º 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:
Loosening the Twelve-Point Bolt
Twelve-Point Bolt, Installing

Note
Wheels must not yet touch the ground when tightening the drive axle or the wheel bearing can be damaged.
Drive Axle with CV Joint, Removing and InstallingVolkswagen Tiguan Service and Repair Manual > Refrigerant R134a Servicing: Concerns
Possible Refrigerant Circuit Concerns
Test Requirements
Note
The A/C system is functioning correctly when the air flowing from the
instrument panel vents has a temperature of 70C
or lower.
Setting on Climatronic "LO".
Setting on A/C system "AC" on; "max"; "cold".
The A/C system OBD cannot f ...