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Matt
Matt, Mechanical Engineer
Category: Audi
Satisfied Customers: 21711
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Having problems with the heating on my Audi Avant 2 litre

Customer Question

Having problems with the heating on my Audi Avant 2 litre 1998. Blows air but no heating on both sides. Therostat and heater flap replaced. What next?
Submitted: 1 year ago.
Category: Audi
Expert:  Shantal-Mod replied 1 year ago.
Hello,
I'm Shantal and I'm a moderator for this topic.
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Shantal
Expert:  Matt replied 1 year ago.

Hello

Very first thing to do is ensure the coolant level is up to the mark and if low top it up with the correct antifreeze or pre-mixed coolant as stated in the owners manual

I'd then check that the engine is getting up to temperature, - are the radiator hoses hot and the temp gauge reaching the middle position?

If this is OK have a feel of the two coolant pipes that pass into the car through the engine bay bulkhead, both should be warm with a warm engine. If they're not then its likely the heater matrix is blocked and you should do a reverse flush on the cooling system to try and clean it out. This is done by removing the top hose from the radiator and placing a garden hose into the engine water outlet, and then run the hose until you get clean water coming out of the radiator.

Expert:  Matt replied 1 year ago.

Hi

do you still need help?

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