My 1994 A6 2.5 TDi 5 cyl with it's poor cold starting (see earlier thread) had bee diagnosed by main dealer as requiring a new engine management unit (£1400 + VAT - ouch).
They have made a fix which disconnects a sensor on the top hose coming out of the head which fools the ECU into thinking...
Hi all. New here so be gentle...
I have a 1994 A6 5 cyl 2.5TDi (AAT 115) auto Avant with 150k on the clock. It has been fine since I got it last summer, (done 15k miles) but in the last week it has developed a cold start problem. The glow plug light goes out (from cold) after a fraction of a...
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