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A3 Cutting out


Richard owen
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Hi All,

Firstly many thanks for letting me to join your club. I'm wondering if anybody else has had this same problem as me.

I've had my A3 for 2 years and love it but for some reason has started to cut out for no reason takes a few turns of the key to get going again after a couple of miles happens again. I have had a Audi chap look at it but no codes came up on his code reader. the garage are saying I should change fuel pump diesel rail what ever that is and some other sensors. They said it will cost about £2500 to get to the bottom of the problem. I was wondering if anybody else has had a similar experience with their car and how they fixed the issue.

many thanks in advance

Rich

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  • 2 months later...

Yes I had similar issue with my a4 1.9. Presuming yours is a 2.0 tdi? They are similar engines anyway. 

I plugged mine in with vcds to have no codes. I checked the in tank lift pump as these are common and had about 5 bar to the high pressure pump. All good. 

With limited tools at the time in the way of testing I couldn't check the output pressure of the TANDEM pump so went for a 2nd hand replacement from a 2.0 which is a direct fit. It cured the issue for about 12 months then started to have a misfire on idle but not when driven. Which turned out to be the crank sensor. 

Hope this helps. Not much goes wrong with the pd engines, so should be a simple fix

 

Chris 

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