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View Full Version : A3 TDI 2.0 tdi (BKD) restricted boost pipe



neil w
27-03-2015, 09:13 AM
Following recent problems with my car I have had to change the angled turbo boost pipe that leads from the turbo to the intercooler (part nos 1K0145790c) image 1 ... it had a small hole in it no doubt caused by shrapnel from the original failure.

On looking at the pipe you can see how the fitting that pushes into the turbo is severely restricted (the central hole being about half the diameter of the turbo outlet )..


Just wondering as to why it has been designed like that, compare it to the pipe from the 1.9 tdi engine (part nos 3b0145834p) image 2, with the same turbo charger fitted.

Wonder if this accounts for why the turbos on the BKD engine cars always produce the sound like a siren and could it account for the high failure rates ???

labanauskas
02-04-2015, 10:04 AM
Same pipe with smaller hole for my bkd '05. Turbo sounds like a police also :) 215K km on the clock. But this sound starts at +-1400rpm