Rennteam 2.0 - EN - Forum - Re: Air blowing from under front wheel arch?? - Page1

Mar 16, 2010 8:54:34 PM

John H: Rennteam VIP; Loc: Cheshire, UK , United Kingdom; Posts: 7682, Gallery; Registered on: Oct 20, 2005

Air blowing from under front wheel arch??

This is a strange one I've not come across before.. Smiley

I noticed a sound, something like a cooling fan, coming from the front of my C2S.

When I stopped the car and turned the engine off the noise stopped, but started again when I re-started the engine. So this time I left the engine running and checked the front end.

I found a jet of air coming from under the wheel arch, just forward of my front off-side wheel. It's quite a powerful air stream and I've no idea what it is....nothing is coming from the near-side.

Does anyone know what could be causing this? Smiley

I'd be very grateful for any pointers.... many thanks.

--

"Things turn out best for people who make the best of the way things turn out."

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Mar 16, 2010 11:04:29 PM

fritz: Rennteam VIP; Loc: BaWü , Germany; Posts: 10248, Gallery; Registered on: Jul 23, 2003; Reply to: John H

Re: Air blowing from under front wheel arch??

John H:

This is a strange one I've not come across before..

I noticed a sound, something like a cooling fan, coming from the front of my C2S.

When I stopped the car and turned the engine off the noise stopped, but started again when I re-started the engine. So this time I left the engine running and checked the front end.

I found a jet of air coming from under the wheel arch, just forward of my front off-side wheel. It's quite a powerful air stream and I've no idea what it is....nothing is coming from the near-side.

Does anyone know what could be causing this?

I'd be very grateful for any pointers.... many thanks.

You've already answered your own question. Smiley
It is in fact a cooling fan behind the right-hand radiator.

--

fritz

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Mar 16, 2010 11:19:50 PM

Ferdie: Rennteam VIP; Loc: Europe , Germany; Posts: 8234, Gallery; Registered on: Jul 2, 2004; Reply to: fritz

Re: Air blowing from under front wheel arch??

Yep!

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Mar 16, 2010 11:26:57 PM

fritz: Rennteam VIP; Loc: BaWü , Germany; Posts: 10248, Gallery; Registered on: Jul 23, 2003; Reply to: Ferdie

Re: Air blowing from under front wheel arch??

Those views show the Turbo, though, which has a fan behind both left-hand and right-hand radiators.

IIRC, the 996C2S just has a fan behind the right-hand rad.

--

fritz

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Mar 16, 2010 11:35:31 PM

Ferdie: Rennteam VIP; Loc: Europe , Germany; Posts: 8234, Gallery; Registered on: Jul 2, 2004; Reply to: fritz

Re: Air blowing from under front wheel arch??

Thanks Fritz, now I can safely go to bed and sleep well.

Have learned something new tonight.

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Mar 16, 2010 11:38:43 PM

fritz: Rennteam VIP; Loc: BaWü , Germany; Posts: 10248, Gallery; Registered on: Jul 23, 2003; Reply to: Ferdie

Re: Air blowing from under front wheel arch??

Ferdie:

Thanks Fritz, now I can safely go to bed and sleep well.

Have learned something new tonight.

But only if I remember correctly......... Smiley

--

fritz

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Mar 17, 2010 12:01:41 PM

John H: Rennteam VIP; Loc: Cheshire, UK , United Kingdom; Posts: 7682, Gallery; Registered on: Oct 20, 2005; Reply to: fritz

Re: Air blowing from under front wheel arch??

Thanks guys... so it's quite normal. But why haven't I noticed it before in over four years ownership of this car?

--

"Things turn out best for people who make the best of the way things turn out."

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Mar 17, 2010 12:02:55 PM

Arshad: Pilot; Loc: Dubai, UAE , United Arab Emirates; Posts: 315, Gallery; Registered on: Apr 1, 2007; Reply to: John H

Re: Air blowing from under front wheel arch??

You were too busy enjoying the car!!

--

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Mar 17, 2010 12:11:59 PM

John H: Rennteam VIP; Loc: Cheshire, UK , United Kingdom; Posts: 7682, Gallery; Registered on: Oct 20, 2005; Reply to: Arshad

Re: Air blowing from under front wheel arch??

Arshad:

You were too busy enjoying the car!!

That's for sure!....but if it's always been there I'm sure I'd have heard it, particularly standing at traffic lights. I'm still not convinced that all is okay.. Smiley

--

"Things turn out best for people who make the best of the way things turn out."

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Mar 17, 2010 6:09:28 PM

John H: Rennteam VIP; Loc: Cheshire, UK , United Kingdom; Posts: 7682, Gallery; Registered on: Oct 20, 2005; Reply to: John H

Re: Air blowing from under front wheel arch??

It's a sad admission after all these years, but I had no idea there was a cooling fan on the front right radiator.

However, I think I've found the problem. On inspecting the radiator with a torch there is a lot of debris clinging to it i.e. leaves, a plastic bag and something nasty which looks very dead!!

Am now trying to find the best way of clearing all this away.... yuk!

--

"Things turn out best for people who make the best of the way things turn out."

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Mar 17, 2010 6:22:32 PM

Ferdie: Rennteam VIP; Loc: Europe , Germany; Posts: 8234, Gallery; Registered on: Jul 2, 2004; Reply to: John H

Re: Air blowing from under front wheel arch??

John H:

It's a sad admission after all these years, but I had no idea there was a cooling fan on the front right radiator.

As long as you know that the 911 is watercooled by now... Smiley

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Mar 17, 2010 8:05:31 PM

John H: Rennteam VIP; Loc: Cheshire, UK , United Kingdom; Posts: 7682, Gallery; Registered on: Oct 20, 2005; Reply to: Ferdie

Re: Air blowing from under front wheel arch??

This is my first water cooled 911 (gave the 996 a miss).

However, I've had it for over 4 years - so I'm making no excuses...

--

"Things turn out best for people who make the best of the way things turn out."

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Apr 12, 2010 11:28:19 AM

John H: Rennteam VIP; Loc: Cheshire, UK , United Kingdom; Posts: 7682, Gallery; Registered on: Oct 20, 2005; Reply to: John H

Re: Air blowing from under front wheel arch??

Update....

Clearing the debris from the front of the right side radiator didn't stop the cooling fan from cutting in much more often than normal....

So I took the car to my OPC this morning.

They found that there were two stones stuck in the left-side fan which was causing the right-side fan to work that much harder!

I'd never had this problem previously, but according to them it's quite a common occurrence.

Not covered under warranty, as it doesn't constitute a mechanical defect, so they charged £42.30 to remove the stones. Not excessive for peace of mind.

Just thought you'd like to know....if it's as common as they say..

--

"Things turn out best for people who make the best of the way things turn out."

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Apr 12, 2010 11:33:52 AM

Rossi: Rennteam VIP; Loc: Home , Germany; Posts: 12680, Gallery; Registered on: Apr 11, 2002; Reply to: John H

Re: Air blowing from under front wheel arch??

Thanks for the update, John.

If this is really a quite common problem with the fans, it is from interest for everyone here.

--

The secret of life is to admire without desiring.

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Apr 12, 2010 5:46:06 PM

fritz: Rennteam VIP; Loc: BaWü , Germany; Posts: 10248, Gallery; Registered on: Jul 23, 2003; Reply to: John H

Re: Air blowing from under front wheel arch??

John H:

Update....

Clearing the debris from the front of the right side radiator didn't stop the cooling fan from cutting in much more often than normal....

So I took the car to my OPC this morning.

They found that there were two stones stuck in the left-side fan which was causing the right-side fan to work that much harder!

I'd never had this problem previously, but according to them it's quite a common occurrence.

Not covered under warranty, as it doesn't constitute a mechanical defect, so they charged £42.30 to remove the stones. Not excessive for peace of mind.

Just thought you'd like to know....if it's as common as they say..

Interesting. Thanks for the update. Smiley

--

fritz

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Apr 13, 2010 2:54:59 PM

cl986: Newbie; Loc: NSW, Australia; Posts: 24, Gallery; Registered on: May 25, 2006; Reply to: fritz

Re: Air blowing from under front wheel arch??

Lucky that I came across this post.

Knowing there are fans in the front, I've noticed recently that the front right fan now comes on far more often than usual. I'll check the left fan for debris .. thanks for posting.

--
05 997S, Silver on Blk 00 986, Speed yellow on Blk 01 X5 4.4, Silver on Blk

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Apr 13, 2010 2:58:16 PM

Ferdie: Rennteam VIP; Loc: Europe , Germany; Posts: 8234, Gallery; Registered on: Jul 2, 2004; Reply to: John H

Re: Air blowing from under front wheel arch??

John H:

So I took the car to my OPC this morning.

They found that there were two stones stuck in the left-side fan which was causing the right-side fan to work that much harder!

Interesting news. So you can trust your ears... Smiley

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Air blowing from under front wheel arch??

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Re: Air blowing from under front wheel arch??

Re: Air blowing from under front wheel arch??

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Re: Air blowing from under front wheel arch??

Re: Air blowing from under front wheel arch??

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Re: Air blowing from under front wheel arch??

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