Re: Engine Fan
11-07-2005, 07:56 AM
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Re: Engine Fan
Have a question that no matter how many searches I have done I can't find an answer. I picked up a 2001.5 Avant to go with my 2004 S4 sedan. These 2 cars could not possibly be any different, but in a good way.
My question is this. Does the engine fan ever turn off? Even at 4,000 rpm's I can still hear that thing running. It's very loud. I know BMW engine fans kick off at about 3,000 rpms, so I was surprised to hear mine always running. Thanks in advance for any information.
My question is this. Does the engine fan ever turn off? Even at 4,000 rpm's I can still hear that thing running. It's very loud. I know BMW engine fans kick off at about 3,000 rpms, so I was surprised to hear mine always running. Thanks in advance for any information.
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11-07-2005, 01:47 PM
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That fan runs with the aircon.......................
Try switching off the aircon. Also note that the two electric fans should run together at various [fan] speeds under various circumstances.They are controlled by the FAN-CONTROL-MODULE found under the chassis leg. Mine went bad and replacement cured all. If the fan runs even with the engine off, suggest you pull the connector (to save battery) found under the power Steering reservoir.
Check this Link...
Go to Pages 11 12 13<ul><li><a href="http://www.modifieda4.com/web/archive/SSP%20198%20-%20Audi%20S4%20Engine%20">http://www.modifieda4.com/web/archive/SSP%20198%20-%20Audi%20S4%20Engine%20</a</li></ul>
Check this Link...
Go to Pages 11 12 13<ul><li><a href="http://www.modifieda4.com/web/archive/SSP%20198%20-%20Audi%20S4%20Engine%20">http://www.modifieda4.com/web/archive/SSP%20198%20-%20Audi%20S4%20Engine%20</a</li></ul>
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11-08-2005, 08:19 AM
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Re: I was wrong, it is the belt-driven fan that is always running
The car is still under factory warranty for another month and is going in Friday for some work so I am going to have them check it for me. It just doesn't seem right that it never shuts off. And I made sure that the A/C was turned off, so that isn't it either. Thanks for all of the responses, they were very helpful.
-Chris
-Chris
11-08-2005, 02:39 PM
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That's supposed to! - It's viscous and only works when rad is hot, otherwise it just spins..........
When it's "working" you'll hear a whoooosh when you rev-up (like a truck) If you rev-up when engine cold the fan does not whooosh as it just spins with no power.
The viscous coupling works with a wax in the centre. When the wax melts it locks the centre of the fan making it "work" When cold, wax freezes again and un-couples the fan.
Other 2 fans are electric and switched on/off as required
The viscous coupling works with a wax in the centre. When the wax melts it locks the centre of the fan making it "work" When cold, wax freezes again and un-couples the fan.
Other 2 fans are electric and switched on/off as required