Replaced fan switch and thermostat this weekend...

FourRings · 07-24-2005, 06:24 PM

Freaking power steering pump.

Anyways, my fan isn't coming on (not that it was before, thus the replacement) when the car has been turned off. It will come on if I turn the key back to the 1st position but when I turn the key off again, the fan stops. Is there possibly a relay missing or is this normal?

AudiSport4000 · 07-24-2005, 07:28 PM

Does it turn on with the ignition on after a drive and the car has gotten up to temp? If so, its completely normal. My 4k does it after its been running hot and I turn the car off (if I turn the ignition on again, the fan turns on).

FourRings · 07-24-2005, 09:06 PM

It will turn on when the needle is getting close to the 2nd bar from the top of the gauge and go off after a few minutes. If I stop the engine while the fan is running, the fan shuts off. If I turn the key back to the 1st position, the fan starts up again.

AudiSport4000 · 07-24-2005, 09:29 PM

85-4kq-girl · 07-25-2005, 03:46 AM

She used to not kick on till between the 2nd and 3rd line from the top. But after replacing the thermostat, this is the hottest she'll get before kicking on, and is usually on at the line just under my little red arrow:

--morgan

cgtdenmark · 07-25-2005, 05:35 AM

my fan afterrun system will only kick in, if its REALLY hot.

FourRings · 07-25-2005, 01:06 PM

Is it normal for the fan not to run when the engine has been shut off?

85-4kq-girl · 07-25-2005, 01:22 PM

I know in my mom's 1988 90q, her fan stays on after you shut the engine off. My S4 also has an after-run fan that remains running after the engine is off. This is NOT the case with 4kqs...so yours sounds normal.

--morgan

AudiSport4000 · 07-25-2005, 01:26 PM

Your situation sounds very normal. Only on hot hot hot days will the fan turn on when the car is off and key is not in the "on" position. It may take a minute or two after shutdown for that to happen anyhow.

FourRings · 07-25-2005, 01:57 PM

07-24-2005, 07:28 PM	#2
AudiSport4000 AudiWorld Super User Garage is empty, add now Join Date: Jun 2001 Location: Indiana Posts: 17,032	When does it turn on? Does it turn on with the ignition on after a drive and the car has gotten up to temp? If so, its completely normal. My 4k does it after its been running hot and I turn the car off (if I turn the ignition on again, the fan turns on).

07-24-2005, 09:06 PM	#3
FourRings AudiWorld Super User Garage is empty, add now Join Date: Aug 2000 Posts: 4,238	Re: When does it turn on? It will turn on when the needle is getting close to the 2nd bar from the top of the gauge and go off after a few minutes. If I stop the engine while the fan is running, the fan shuts off. If I turn the key back to the 1st position, the fan starts up again. __________________ Quote from my girlfriend: "Why is it not hard for me to imagine you living in the woods somewhere, making bombs?" *Rob* Currently: 1978 Rabbit (complete restoration) 1981 4000 5+5 1997 A6 Avant 2006 GTI

07-24-2005, 09:29 PM	#4
AudiSport4000 AudiWorld Super User Garage is empty, add now Join Date: Jun 2001 Location: Indiana Posts: 17,032	Sounds normal to me

07-25-2005, 03:46 AM	#5
85-4kq-girl AudiWorld Super User Garage is empty, add now Join Date: Nov 2000 Posts: 7,661	Yep, to me too (a pic for reference): She used to not kick on till between the 2nd and 3rd line from the top. But after replacing the thermostat, this is the hottest she'll get before kicking on, and is usually on at the line just under my little red arrow: --morgan __________________ www.s4girl.com www.audi4000.com 95urs6--96a4--01s4--04allroad RIP OWK.

07-25-2005, 05:35 AM	#6
cgtdenmark Junior Member Garage is empty, add now Join Date: Apr 2003 Posts: 506	Sounds normal to me also my fan afterrun system will only kick in, if its REALLY hot. __________________

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07-25-2005, 01:06 PM	#7
FourRings AudiWorld Super User Garage is empty, add now Join Date: Aug 2000 Posts: 4,238	No, the fan comes on just fine, it's just that it won't stay on after I shut the engine off. Is it normal for the fan not to run when the engine has been shut off? __________________ Quote from my girlfriend: "Why is it not hard for me to imagine you living in the woods somewhere, making bombs?" *Rob* Currently: 1978 Rabbit (complete restoration) 1981 4000 5+5 1997 A6 Avant 2006 GTI

07-25-2005, 01:22 PM	#8
85-4kq-girl AudiWorld Super User Garage is empty, add now Join Date: Nov 2000 Posts: 7,661	Yep, that is normal. It will shut off. This differs from later models... I know in my mom's 1988 90q, her fan stays on after you shut the engine off. My S4 also has an after-run fan that remains running after the engine is off. This is NOT the case with 4kqs...so yours sounds normal. --morgan __________________ www.s4girl.com www.audi4000.com 95urs6--96a4--01s4--04allroad RIP OWK.

07-25-2005, 01:26 PM	#9
AudiSport4000 AudiWorld Super User Garage is empty, add now Join Date: Jun 2001 Location: Indiana Posts: 17,032	Of course... Your situation sounds very normal. Only on hot hot hot days will the fan turn on when the car is off and key is not in the "on" position. It may take a minute or two after shutdown for that to happen anyhow.

07-25-2005, 01:57 PM	#10
FourRings AudiWorld Super User Garage is empty, add now Join Date: Aug 2000 Posts: 4,238	Ok, cool. As long as I'm not the freak of the bunch, you know. Thanks all. __________________ Quote from my girlfriend: "Why is it not hard for me to imagine you living in the woods somewhere, making bombs?" *Rob* Currently: 1978 Rabbit (complete restoration) 1981 4000 5+5 1997 A6 Avant 2006 GTI

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07-25-2005, 01:57 PM
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