here is my experience with bitners.
was passing by so i decided to stop by and see what they would come up with...just fot ****s and giggles.
car had 450xxx km. under WOT the car would whistle, like there was a bad gasket on the turbo or a crack somewhere with the exhaust. went to bitners. explained the situation and the main mechanic told me that the car had extremely high KM and that the engine is no good. recommended a new engine.
turned out to be a 10 cent washer on the injector bodies.
my experience with the bug shop. had a customer come to me since he was getting quoted big bucks for timing belt jobs - 1500 and more.
he just came from the bug shop since they checked over the whole car to make sure its 100% (he just bought the car)
anyways, so this guy came by and right away i noticed the car didnt sound right.
long story short.
2nd gear was grinding
turbo seals were shot
intercooler Filled with oil
clogged up intake
bad wheel bearing
and
IQ and timing off and the belt looked like it had 200xxx km on it.
this was RIGHT after he came back from the bug shop making sure the car is 100%..which he showed me a piece of paper showing it is.
thats just my experiences and many others that have come to me.
i personally dont trust those guys unless you know EXACTLY what you're going into the shop for.
for anyone needing advice or help with their TDIs PM ME