dkel

Well put about 100 miles on it today and no codes! Thank you for all the help! Was definitely the bottom gear flat spot throwing off tdc...

Ok so bottom crank pulley mark lines up to tdc location, cyl #1 is at tdc and two marks on each cam gear are 125mm apart. So looks like...

HI, It is every second rotation of the crank that the cam timing marks will be up top. As Uwe mentioned, the crank has to rotate twice...

HI, to time the cams/crank yes. I was referring to your picture with the cam timing marks pointing down. Sorry for any confusion....

Hi, If you spin the crank one more revolution do the cam marks show up where they should be? You could be at TDC but not on the...

Recirculation location

Here is the defrost flap location

Hi, I also have a 2016 A3 and have recently fixed the defrost flap motor. The recirculation motor is also behind the glove box. I used...

Hi, are the spark plugs removed? It would be a lot more difficult with plugs installed. If you have removed them, something is not...

HI, A couple of your errors are from 2017 05. Please clear these and repost your scan. Thanks,

I believe it would as it would allow a timing change at idle RPM but someone more experienced in these engines would know for sure...

Found this video which may explain your start up rattle...

Here is a YouTube video that goes into detail on the Audi Variable timing: Good luck!