Brakes - Knock Noise When Braking And Turning

Technical Journal

TITLE:
17 inch front brake, knocking noise when braking
and turning

CAR MARKET:
United States

ISSUING DEPARTMENT:
Technical Service

REF NO:
TJ 22751

ISSUE DATE:

YEAR
2012

MONTH
12

DAY
17

PARTNER:
3 US 7510 Volvo Cars North America

FUNC DESC:
Front wheel brake

FUNC GROUP:
5110

"Fixed Right - First Time"





Attachment





Vehicle Type





CSC Customer Symptom Codes

DTC Diagnostic Trouble Codes

Text

Note:
If using a printed copy of this Retailer Technical Journal, first check for the latest online version.

DESCRIPTION:
A knocking noise can be heard from the front brakes when braking and turning at slow speed.
The noise mainly occurs on vehicles equipped with 17" ( 432 mm) front brake system (2FN system type).
A sample sound file is attached.

PRODUCT MODIFICATION:
Pre-greased calipers using a new type of grease were introduced in production during Q4 2011.
The new grease (Plastilube) is now available for service use.

SERVICE:
Clean and apply new grease to sliding surfaces on caliper and pads as shown in the attached documents.

PARTS:
Use Plastilube grease PN 31400015, 5.5 ml (50% per side)

VSTG OPERATION NUMBER:
98237-2 - Brake pads front adjust acc. to TJ22751 - 0.8 hrs

- Claims may be submitted under the new car warranty when there is a documented customer complaint using claim type: 01
- Labor times are valid at the time of release and are subject to change.











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