Just 1297 km out of warranty, no good will. My Q5 developed an engine noise coming from the top of the engine inside the top timing cover, also can feel the tapping with my hand on the intake cam actuator. After researching on-line the general consensus is the timing chain was stretched and/or the tensioner crapped out. After getting the engine manual from ErWin I checked the chain stretch measurement and tensioner. The chain was almost to the limit but not past and the tensioner came out to the 5th notch.
I ordered up the cam and balancer chains, tensioners and guides. I had to wait several weeks for the chain tools kit from a tool supplier but received it this past week. Great timing weekend is here and get it done for my wife, awesome. While taking it apart the tool kit was the wrong kit, the cam sprocket holders didn't fit (had to grind off the chain side to get tucked in) and the cam adjuster spool tool didn't fit so I had to make my own on my mill.
The chains were definitely stretched but honestly didn't look terrible. Reinstalled everything, while turning over the engine afterwards the chain would reach a point than jump and snap, you could actually see the chain rise on the intake sprocket. Fired it up anyway, "low and behold" the noise is still there "crap".
Alright no worries of the chain causing catastrophic damage from jumping, it's new. Engine light is still coming on, hooked up my new VCDS and the P0011 Cam sensor fault still active. Engine can't seem to bring the cam back into its the timing parameters.
I should have gone with my gut, cam adjuster. Has anyone had something similar happen and was it the cam adjusters. Any help is greatly appreciated.