Condition

When loosening the wheel bolts on the rear axle, it is apparent that they are difficult to loosen or fit. Damage may occur to the locating bolt of the brake disc.

Technical Background

When lifting the vehicle, axle kinematics cause torque to be applied to the drive shaft. If the transmission parking lock and the parking brake are applied, the torque may result in tension between the wheel bolts and the brake disc.

Production Solution

Not applicable

Service

To avoid damage, please observe the instructions in the Workshop Manual and the Service TV explanation video (STV_0795).

The parking brake must be released when loosening wheel bolts (“Ensure ability to roll”).

Warranty

This service info provides further information in addition to the already existing channels.

In general, this issue may not be invoiced under warranty.

Additional Information

All part and service references provided in this TSB (2077528) are subject to change and/or removal. Always check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.

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