2002 Audi A4 1.9tdi Quattro Hesitation between 1800rpm and 2500 rpm

Audi A4 Problem
The Problem

Hesitation between 1800rpm and 2500 rpm
Feb 1, 2009 (11 years ago)
My Audi 1.9 tdi quattro hesitates between 1800 rpm and 2500 rpm. After the turbo kicks in it goes very well and below 1800 it seems to run ok.
The temp gauge also varies between 70 degrees and 90 degrees. It's had a new Air Mass Meter fitted, fuel filter and had the fuel system flushed. The mechanic said that he thought the intercooler could do with flushing.
Any ideas please?

Car details
Car: Audi A4
Variant: 1.9tdi Quattro
Model Year: 2002
Category: Running Rough, Starting & Power Loss

Recalls: Audi A4 Recalls
More: Audi A4 Problems
Parts mentioned in this problem
Replies and solutions
Fixes: 395
Feb 1, 2009 (11 years ago)
sounds like you have a possible air leak. intercooler hoses are known for perishing or popping off causing a lack of power. try looking at that first. hope this helps
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