Yes it is. Get a new set (preferably with an IWIS pro series chain) and be done with it.
Pros: IWIS pro series chain
Cons: chain is too loose
Reviews of IWIS parts For Business
Average Rating
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The manufacturer's average rating is calculated based on ratings of all its spare parts. It determines the place in the manufacturer ranking
4.6
Manufacturer Ranking
-
5
Spare Parts
2
Country
Germany
Website
iwis.com
Spare Parts
Comparisons
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I've been gathering parts to do the timing chain on my 2012 CTT. I bought it with a reduced engine power warning but was originally told it was just a variable valve solenoid. Thankfully I did some research and learned that you can see part of the upper timing chain guide through the oil fill cap hole. Mine is missing the plastic lining on the upper chain guide so a timing chain service is needed.
Pros: OEM supplier
Cons: plastic lining missing
Vehicle:
Porsche Cayenne
A preventative chain job on a RWD N47 is closer to 1200 quid (using a genuine IWIS kit) not 4k. It is relatively cheap long term security if you plan on keeping the car.
Pros: cheap long term security
The only better chain is made by Iwis, in Germany. Excellent chain.
Pros: excellent chain
6k in parts for a timing chain alone?
Cons: expensive timing chain
Vehicle:
Mercedes
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