endoftether wrote:
> My A4 is driving me up the wall. OK, so it’s got 200,000 miles on the
> clock but it’s a 1.9l TD avant 110bhp so surely it should last longer
> than this.
>
> It has a problem with the exhaust valve which causes the turbo to
> fail. The valve sticks open usually in third, forth or fifth gear when
> doing more than 50 mph. It’s been to an Audi garage already to have
> the part replaced (along with the boost solanoid and the mass air
> meter) only 6 weeks ago and this weekend it failed again....
>
Do you mean the Exhaust Gas Recirculation (EGR) valve?

I think it's possible to disable this.

However, are you sure that is the problem? This could also be a failing
MAF sensor, a sticking VNT turbo mechanism, or dodgy N75 valve (or
vacuum hose/wiring for the N75). The N75 controls the VNT machanism.

Take a look at http://www.tdiclub.com and ask in the forums, and have a
look at
http://www.technologie-entwicklung.d...t15-turbo.html