Suspension/Body/Frame - Front Suspension Knocking Noise
40 12 04October 15, 2012
2014645 Supersedes T.B. V401202 dated June 27, 2012 to add VIN range for CC model year 2012.
Vehicle Information
Condition
Front Suspension, Knocking Noise
Knocking noise from vehicle front. Typically occurs only one time after each direction change (forward or backward, left or right).
Technical Background
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.
Production Solution
Not applicable.
Service
Install two specialty plates (washers) Part No.:
7M3499349A following the procedure below.
Tip:
Part number(s) are for reference only. Always see
ETKA for the latest part(s) information.
^ Loosen by two turns, the four bolts towards the rear of the sub frame.
^ Remove one inboard bolt.
^ Insert washer Part No. 7M3499349A between sub frame and body, centered on the hole with tabs of washer pointing rear and down as shown.
^ Insert a new bolt and hand tighten.
^ Repeat the above procedure with second inboard bolt.
^ Tighten all 4 bolts, in accordance to Repair Manual Group 40 Front suspension, driveshaft in ElsaWeb
Note:
Sub frame bolts MUST be replaced after every removal.
Warranty
Required Parts and Tools
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.