Engine cooling fans.

4.2 V8 32v Naturally Aspirated - 414 bhp
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Lukes3
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Engine cooling fans.

Post by Lukes3 » Sat Jun 30, 2018 2:28 pm

Should our fans be coming on to help cool these beasts in this weather?
My temp isnt moving stays on 90 but i have never heard them come in even after a good thrashing in this weather.
Anyone else noticed anything diffrent?
Current-saloon rs4,Full decat Xpipe miltek,cold air feed,BMC air filter, TTS supercharged, MRC stage 3 L/C F/S,hell s+s brake lines,AP racing rotors + vagbremtechnic bells, kw v3s clifford 650mk2

Gone-audi s3 8p stage2+ with loba lo400 turbo.

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sumdy
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Re: Engine cooling fans.

Post by sumdy » Sat Jun 30, 2018 2:56 pm

I have just replaced the main fan on ours(fan blades had parted company from the motor) and have been keeping an eye on it for the past few days.
Fan is all good when engine is running but stops when ignition is turned off.

Lukes3
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Re: Engine cooling fans.

Post by Lukes3 » Sat Jun 30, 2018 9:05 pm

Mine just dosnt come on at all as far as im aware, i can plug VCDS in an get them to work but domt ever come on on there own.
Current-saloon rs4,Full decat Xpipe miltek,cold air feed,BMC air filter, TTS supercharged, MRC stage 3 L/C F/S,hell s+s brake lines,AP racing rotors + vagbremtechnic bells, kw v3s clifford 650mk2

Gone-audi s3 8p stage2+ with loba lo400 turbo.

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sumdy
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Re: Engine cooling fans.

Post by sumdy » Sun Jul 01, 2018 9:42 am

Lukes3 wrote:
Sat Jun 30, 2018 9:05 pm
Mine just dosnt come on at all as far as im aware, i can plug VCDS in an get them to work but domt ever come on on there own.
Given the recent weather, and the fans not kicking in at all, you would think you would have an overheating issue.
I seem to remember it being said that the Temp gauge doesn't read above 90 (i have not seen ours go over 90) in
order to stop drivers worrying about the gauge rising at times and thinking something is wrong
If overheating happens then apparently a warning light is displayed.

I will say that the fans are very quiet and are not able to be heard with the engine running(this is true of mine anyway)
i need a torch to see the movement of the blades,even when off they are difficult to see.I can also feel the main fan running
when i place my hand above it

Hopefully someone who is more technically savvy will give you a shout

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MikeFish
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Re: Engine cooling fans.

Post by MikeFish » Sun Jul 01, 2018 3:30 pm

Yes the temp gauge gets up to 90 degrees then sits there unless it starts to goes horribly wrong.
But I'd expect the fans to be coming on this weather. They should even come on in the winter when parked for a while.

bennn
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Re: Engine cooling fans.

Post by bennn » Sun Jul 01, 2018 6:08 pm

I've been out in mine today and can hear them come to a stop after I've switched off the engine.

Lukes3
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Re: Engine cooling fans.

Post by Lukes3 » Sun Jul 01, 2018 6:47 pm

Cheers everyone, nope can leave mine sitting there an wont come on, but gauge is at 90. Might have to look in that then.
Current-saloon rs4,Full decat Xpipe miltek,cold air feed,BMC air filter, TTS supercharged, MRC stage 3 L/C F/S,hell s+s brake lines,AP racing rotors + vagbremtechnic bells, kw v3s clifford 650mk2

Gone-audi s3 8p stage2+ with loba lo400 turbo.

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MikeFish
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Re: Engine cooling fans.

Post by MikeFish » Sun Jul 01, 2018 7:18 pm

Lukes3 wrote:
Sun Jul 01, 2018 6:47 pm
Cheers everyone, nope can leave mine sitting there an wont come on, but gauge is at 90. Might have to look in that then.
If you just leave it idling for half an hour or so do they come on at all? And if you leave it long enough doesn't it overheat?
I wonder if it is something to do with the supercharger?

rickster147
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Re: Engine cooling fans.

Post by rickster147 » Sun Jul 01, 2018 7:50 pm

Mine Comes on I can here it but never heard it with engine turned off
Rs4 b7 In avus silver with b14 Bilstein coilovers, centre resonator delete with x pipe and piggie cats gutted
Headlights detangoed trups led kit drl reverse and numberplate kit

Previous audi
rs6 c5 - mrc stage 2 remap-itg filters-forge dumpers-center decat with miltek kw coilovers- h and r
I call her the growler lol

Lukes3
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Re: Engine cooling fans.

Post by Lukes3 » Sun Jul 01, 2018 8:10 pm

rickster147 wrote:
Sun Jul 01, 2018 7:50 pm
Mine Comes on I can here it but never heard it with engine turned off
MikeFish wrote:
Sun Jul 01, 2018 7:18 pm
Lukes3 wrote:
Sun Jul 01, 2018 6:47 pm
Cheers everyone, nope can leave mine sitting there an wont come on, but gauge is at 90. Might have to look in that then.
If you just leave it idling for half an hour or so do they come on at all? And if you leave it long enough doesn't it overheat?
I wonder if it is something to do with the supercharger?
Update,
Have not left it idling for a long time but i took it out an really thrashed it, pulled up on the drive an they was on, both working.
Soon as tured the engine off then knocked off,
They are really quiet but i surpose a v8 with decats can easily drown out fans lol
Current-saloon rs4,Full decat Xpipe miltek,cold air feed,BMC air filter, TTS supercharged, MRC stage 3 L/C F/S,hell s+s brake lines,AP racing rotors + vagbremtechnic bells, kw v3s clifford 650mk2

Gone-audi s3 8p stage2+ with loba lo400 turbo.

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