I would like to create a thread where we can post information on identifying the cause and providing a solution to common rattles in the MKVI Jetta. I'll keep the first post up to date as an index to individual posts describing the cause and/or solution to each problem.
- Fender subwoofer, rear deck
Cause - Rear plastic deck vibrates
Solution - Tennis ball under rear deck
- Windsheild/dash at high speed
Cause 1 - Loose plastic rain/splashguard
Solution 1 - Make sure the tabs that hold it down are secure
Cause 2 - Leaf in rain/splashguard drain rattling in wind
Solution 2 - Keep rain/splashguard free of leaves/debris
- Trunk rattle when going over bumps
Cause - Spare tire not secured
Solution - Secure spare tire
- Trunk rattle
Cause - Rear seat release cable
Solution - Wrap and secure cable
- Snapping/cracking from instrument panel
Cause 1 - Missing screw in dash from factory
Solution 1 - Dealer installed missing screw
Cause 2 - Squeaky trim
Solution 2 - Add styrofoam
- "Rustling leaves" when accelerating
Cause - Needs holding rod clip from dealer
Solution - Have dealer fix
More Info - Thread detailing this issue
- Driver or passenger door rattles (multiple)
Cause 1 - LED security light cylinder plastic housing
Solution 1 - Foam tape (Full thread)
No cause 2 found -
No solution 2 found -
Seems there is no single cause or solution to these rattles. Suggested dynamat or other soundproofing
- Snapping/cracking, head unit area
Cause - HU frame makes contact with HVAC frame
Solution - Felt pads (Full how-to)
One owner had his entire HU replaced
- Creaking Dead Pedal
Cause - None found
Solution - None found