2003 Audi A4 1.8t 163bhp Performance

Audi A4 Problem
The Problem

Apr 11, 2012 (8 years ago)
When car is idling the revs drop dramatically then come back up to normal without cutting out, also the car seams down on power not very responsive.

Can anyone shed ant light on these problems
Car is a 1.8t Audi cabriolet it's only down 70k

Car details
Car: Audi A4
Variant: 1.8t 163bhp
Model Year: 2003
Category: Running Rough, Starting & Power Loss

Recalls: Audi A4 Recalls
More: Audi A4 Problems
Replies and solutions
Fixes: 379
Apr 11, 2012 (8 years ago)
Hi, it could be a 101 things, such as idle control valve, lamba sensor, etc etc., but at a guess and because performance has droped off try renewing the fuel filter (unless you no its been done)
Other than that you may have to take it in to get a fault code reading.
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