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Old 10-10-2012, 02:04 PM   #1
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Drives: 370z,Golf TDI, Crown Vic
Join Date: Sep 2011
Location: Nor-Cal
Posts: 18,567
Official Timing Chain Tensioner failure thread

Figured it would be nice to gather some info to point folks to.

What is known:
1. Unpredictable failure mileage could be as early as 10k and latest one so far happened at 60k.
2. Full engine replacement is recommended because jumped timing ruins both the head/valves and the bottom end.
3. VW seems to be picking up the tab while car is under the 5 yr 60k powertrain warranty.
4. Happens to tuned and untuned cars.
5. 2008-13 all Years seem to be affected
6. It seems that after 9/12 motor build dates updated tensioners were used
7. There is a TSB currently out on the issue:

Some Ideas for a fix
Updated tensioner as such: Long term durability is still not proven.

2. OEM updated tensioner on the LEFT... the retainer on the factory installed tensioner fails... causing the chain to skip timing.

2011 TDI - DSG/// Only Option- Mudguards.
Mods:Blk HIDs, LED Tails, 17" Sparcos, RNS510, JL Stealthbox.

Last edited by maxtdi; 10-12-2012 at 12:26 PM.
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