Have a 2009 CC and a 2010 TT with the CCTA. The upper timing covers are absolute garbage... (I know about the other areas that are prone to leaks like the Cam adj valve, etc). And I am also aware of the tightening sequence to prevent cover distortion.
After dealing with constant leaks years back, I decided to replace the CC's and ponied up the bucks ($180) for the Factory Revision (think it was G at the time) and it is still dry.
The TT came with a bad leak and visible cover was warped. So, I decided to buy the CTP aftermarket cover. After a couple of weeks it started leaking again, and then like a sieve.. Pressure test looks like leaks around most of the seal. Took it apart last night and the cover appears straight, but It looks like the seal actually shrunk up The seal has the VAG logo and PN FYI. I don't get it.
So, after futile searching, I can't decipher if the Rein version and the CTP (Continental, Contitech) are actually the same cover since I think part of the same company these days.
Also, I see that China is making an Aluminum cover (which to me sounds like a great idea) EBAY. I just ordered one but looks like it will take a week or two.
In the mean time, I replaced the seal on the CTP cover and this time used a light finger coat of some of the Grey RTV as used on the Lower Timing Covers. We shall see how this concept works. If this doesn't work while I wait for the Al cover, I may shorten the metal screw spacers to squeeze the seal a tad more.
Anyone have anything to add regarding the aftermarket covers or anything else? Anyone use one of the AL covers from China?