In limp mode fault code 16622

[Tom powell]

After some help... My A3 2.0 tdi 2006 has developed a fault when started and driving below 2k revs is fine as soon as comes on to boost goes into limp mode the fault code showing is 16622 just wandering is this a common fault and which sensor to go for first the map or boost sensor ?

[Audi Owners Club.]

Hi Tom....welcome to the Forum

I think you'll find that it is the variable vanes sticking in the turbo that causes this fault.

Would suggest you run a search through this forum for posts on cleaning the turbo...which usually sorts it at very little cost.

Cheers   Trevor