A4 (B7 Platform) Discussion Discussion forum for the B7 Audi A4 produced from 2005-2008.5

2.0t quattro 2006 8ec lost heat in cabin

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Old Nov 28, 2018 | 12:22 PM
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Peter.pete's Avatar
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Default 2.0t quattro 2006 8ec lost heat in cabin

help required to figure out why I have not got heat when the car idles. Hot when you drive. No overheating issues and temp at 90.
when it started:
i changed the timing belt and water pump. Got them from Audi so hoping it’s the right parts. Certainly looked good.
after that no heat at idle in the cabin. Ok if revved. All bled using the hole on pipe at heater matrix and pipe across engine.
since then I have changed the thermostat, reverse cleaned the matrix. No restriction there / I could breath through it.
just seems to have very slow flow at idle.

Any clues for this car?
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