Hi guys I have recently gone from the Tiguan APR Stage 1, 2013 Version to the latest revision/version available of the APR Stage 1 tune. Coincidentally, immediately after this was done I had one of the intake flaps fail (a common and unrelated issue to the APR tune) then also the oil light came on about an hr after that.

That day I topped up the oil to the correct levels using VW 502.00 grade oil as recommended in the manual, however I now see that VW 502.00 oil can be 5w30, 5w40, 10w30, 10w40. Through this mistake I ended up with a combination of 5w30/10w30/10w40 in my engine... I have since come to learn that the dealer only uses 5w30 when servicing. I am about to drain the engine of oil/replace oil filter and retop with Castrol 5w30.

The intake manifold was replaced with the latest version of the part by the dealership

My issue is that upon the first start of the day (cold start) the acceleration is very rough/sputtering/jerky for about 30secs before becoming fine and driving completely normally.

Has anyone or is anyone else having this issue?

Many thanks!