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Audi A4 TDi AVF Quattro - Turbo / Intercooler problem - Fixed #

Posted by Liam Clohessy on March 26, 2011, 10:04 am

Year of Manufacture *: 2002
( Optional ) Engine Code or CC: avf

Hi

Fitted turbo intercooler in febuary 2010 to vehicle. Old one had burst. Car drove fine for 13 months but came back in yesterday with intercooler burst open again as if it had exploded.

Any ideas what could have caused problem?

Liam

Re: Audi A4 TDi AVF Quattro - Turbo / Intercooler problem #

Posted by Malcolm Tripp <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5337' width='330' height='300' border=0 style='border:none;'> on March 27, 2011, 4:27 pm, in reply to "Audi A4 TDi AVF Quattro - Turbo / Intercooler problem #"
Malcolm Tripp

Must be overboost any codes ?

Sticking wastegate ?

Re: Audi A4 TDi AVF Quattro - Turbo / Intercooler problem #

Posted by Matt Booth <iframe src='https://members4.boardhost.com/ukautotalk/info/user=ukat3028' width='330' height='300' border=0 style='border:none;'> on March 27, 2011, 7:30 pm, in reply to "Re: Audi A4 TDi AVF Quattro - Turbo / Intercooler problem #"
Matthew Booth

I was thinking the same thing Malcolm. I'm thinking though maybe the MAP sensor is not reading correctly as a boost great enough to blow an intercooler would surely put it into limp mode. I'm amazed the intercooler has given up before the pipes though.

Has the car been tuned? What are your boost readings.

Matt

Re: Audi A4 TDi AVF Quattro - Turbo / Intercooler problem #

Posted by Ian Gray <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT1648' width='330' height='300' border=0 style='border:none;'> on March 28, 2011, 7:33 pm, in reply to "Re: Audi A4 TDi AVF Quattro - Turbo / Intercooler problem #"
Ian Gray

Hi Liam, we had an A3 in recently that kept blowing the intercooler hose off. Turned out the intake flap assy was sticking shut. Quite common, they get get gummed up & the controller fills with oil. Ususally flags up a fault code.

Fixed #

Posted by Liam Clohessy on March 29, 2011, 9:39 am, in reply to "Re: Audi A4 TDi AVF Quattro - Turbo / Intercooler problem #"
Message modified by board administrator March 29, 2011, 4:12 pm

We found a pipe broken between boost pressure sensor and air intake flap. We think this probably caused the problem

Should have burst pipe before intercooler?

Liam

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