Audi A4 (2000) Aircon fan not working

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Fri 25 Aug 2006 16:03
Audi A4 (2000) Aircon fan not working - tyre tread
My wife's A4 has recently had the aircon re-gassed and was working well but the fan has stopped working.

I tried to check the fuse indicated in the manual and all appears in order but the wife says that the fan works intermittently and when it cuts in she hears a repetitive clicking noise which I think may be a relay. Anyone know where this is likely to be located?

Any ideas of anything else I could check or likely causes before I elist the services of an auto sparks?
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Fri 25 Aug 2006 17:17
Audi A4 (2000) Aircon fan not working - Dave N
Engine fan, or blower fan?
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Tue 29 Aug 2006 02:45
Audi A4 (2000) Aircon fan not working - tyre tread
Blower fan
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Mon 18 Sep 2006 13:54
Audi A4 (2000) Aircon fan not working - tyre tread
I'm pretty sure that this is a relay problem and I have accessed the drop down panel under the steering column where the relays are located but I can't figure out which one is the heater fan relay.

Can anyone help please?
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Mon 18 Sep 2006 19:49
Audi A4 (2000) Aircon fan not working - elekie&a/c doctor
Firstly check the fuses on the end of the dash by drivers door,I think the blower fan is a 30a green.If all ok, I would drop the glove box & trim to gain access to the blower motor and check for power and earth to the 2 push on connections.Blower motor fault is a fairly usual problem on these.
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Tue 3 Oct 2006 09:59
Audi A4 (2000) Aircon fan not working - tyre tread
Thanks eleckie doctor, I'll have a look - now that the weather has turned colder it has become more important to resolve as my wife is feeling the cold having no fan to distibute warm air!

In case its not the blower itself, any idea which relay so I can check that too?
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Thu 5 Oct 2006 23:38
Audi A4 (2000) Aircon fan not working - tyre tread
Bump!

Anyone help me with which relay contols the fan - I need to sort it this weekend! The missus is freezing 'er bits off!
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Tue 14 Nov 2006 09:56
Audi A4 (2000) Aircon fan not working - tyre tread
Just an update in case it helps anyone else.

It wasn't the relay, it was the blower motor.

The armature had worn and although i got the motor working again it was only for a few days.

Audi specialist wanted £280 for the motor and £80.00 to fit, both plus VAT. - total = £423.00

Bought an identical Audi badged motor off e-bay - brand new - £80 + £10 P&P and fitted it myself in 40 mins (albeit i had already taken it out once so i knew what I was doing).

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Sat 12 Feb 2011 05:24
Audi A4 (2000) Aircon fan not working - jansengeorge

Does anyone know where the relay for the [url=www.autopartswarehouse.com/a-fs-c_fan_relay~pop.ht...l]A/C fan relay[/url] is located?I am talking about the relay for the Auxiliary electrical fan located at the front of the engine. I was under the impression that a relay was used in the circuitry to determine fan speed.

Edited by jansengeorge on 12/02/2011 at 05:28

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Sat 12 Feb 2011 13:36
Audi A4 (2000) Aircon fan not working - Peter D

That is not a relay it is a dual thermal switch and is mounted in the back of the radiator or in the bottom hose. There are two relays that use the signals to control the fan speed, fuse 2 and 3 on the 8 relay carrier. This fan, in this present weather will only come at idle or if running very hot. Regards Peter

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