Brakes - Front Brakes Squeal While Backing Up

46 11 04

April 15, 2011

2025921

Front Brakes Squeal while Backing Up





Vehicle Information

Condition

Typical conditions under which the concern occurs are light brake application during high humidity when backing up and the brakes are cold. In rare cases, it might also be heard while lightly braking going forward.

Tip:

Sound bite attachment provided as an example noise for identification purpose. This is the only condition that justifies a repair under this TB.

Technical Background

The natural frequency of the front brake disc did not meet the design specification and caused noise under the above conditions.

Production Solution

Correct parts are installed since MY 2011 VIN AX_BW543598.

Service





Note

Procedure:

Replace Front brake pads and discs, see repair Manual Group 46 in ElsaWeb.

Tip:

Please listen to the example noise attached for identification. this is the only condition that justifies a repair under this TB.








Warranty





Required Parts and Tools

No Special Tools Required.

Additional Information

All part and service references provided in this Technical Bulletin are subject to change and/or removal. Always check with your Parts Dept. and Repair Manuals for the latest information.