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Service bulletin V401204 2014645

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10156057
Published by NHTSA2019-04-01
Manufacturer's numberV401204 2014645
Manufacturer's date2012-10-15
NHTSA componentSUSPENSION:FRONT

NHTSA's summary

Technical Bulletin (Front Suspension, Knocking Noise): A Knocking noise from vehicle front. Typically occurs only one time after each direction change (forward or backward, left or right). The sub frame shifts slightly relative to the body due to wax residue in-between components. Maximum acceleration and braking in vehicles that are driven hard are contributors to the occurrence. This document discusses the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Suspension

Vehicles listed
VOLKSWAGEN CC2009 to 2011
VOLKSWAGEN CC2012
VOLKSWAGEN PASSAT2006, 2007, 2008, 2009, 2010

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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