S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

Anyone know what causes fan blades to break off?

Thread Tools
 
Search this Thread
 
Old 02-07-2005, 08:33 AM
  #1  
New Member
Thread Starter
 
Tulipo's Avatar
 
Join Date: Dec 2002
Posts: 463
Likes: 0
Received 0 Likes on 0 Posts
Default Anyone know what causes fan blades to break off?

So for the past couple days I've noticed that my car was making some weird noises coming from the engine. Today in the morning it sounded worse so I popped the hood and found this:

<img src="http://pictureposter.audiworld.com/47961/fanblade.jpg">

It was on top of the engine. It is a fan blade and here a the pic of the fan where the blade broke off.
<img src="http://pictureposter.audiworld.com/47961/fan.jpg">

Anyone know what would cause this? This is not the first time this has happened to me. When my car was getting k04's put in by induktion they found that my fan only had 1 blade on it, so it was replaced.

Also, would this be covered under warranty or not? TIA
Old 02-07-2005, 08:35 AM
  #2  
AudiWorld Super User
 
Stealth4's Avatar
 
Join Date: Jan 2002
Posts: 13,154
Likes: 0
Received 2 Likes on 2 Posts
Default happened to me too (under warranty)- no explanation given

I had to have it towed tho.
Old 02-07-2005, 08:39 AM
  #3  
New Member
Thread Starter
 
Tulipo's Avatar
 
Join Date: Dec 2002
Posts: 463
Likes: 0
Received 0 Likes on 0 Posts
Default

You had to have it towed? So I shouldn't be driving it with a fan blade missing?
Old 02-07-2005, 08:52 AM
  #4  
AudiWorld Super User
 
Stealth4's Avatar
 
Join Date: Jan 2002
Posts: 13,154
Likes: 0
Received 2 Likes on 2 Posts
Default it was hitting something, several blades broke off, it was a really hot day

car started overheating...wasnt worth risking it
Old 02-07-2005, 09:09 AM
  #5  
AudiWorld Super User
 
lemieux@curbside's Avatar
 
Join Date: Dec 2002
Posts: 17,772
Likes: 0
Received 0 Likes on 0 Posts
Default

weak snobmount and motor mounts that allow too much movement of the engine under hard acceleration.
Old 02-07-2005, 09:46 AM
  #6  
Banned
 
Mat Indukts Lambos's Avatar
 
Join Date: Apr 2003
Posts: 5,742
Likes: 0
Received 1 Like on 1 Post
Default

Agh......that sucks. :-/
Old 02-07-2005, 12:14 PM
  #7  
AudiWorld Super User
 
reefer_bob's Avatar
 
Join Date: Oct 2002
Posts: 14,321
Likes: 0
Received 0 Likes on 0 Posts
Default

Great opportunity for a EFK!
Old 02-07-2005, 12:15 PM
  #8  
AudiWorld Member
 
kaygee's Avatar
 
Join Date: Jun 2004
Posts: 175
Likes: 0
Received 0 Likes on 0 Posts
Default The rubber hood seal on mine....

Sometimes came loose (siliconed in place now), horrible noise. Thought something was badly amiss. Worth checking it isn't loose.
Old 02-17-2005, 10:12 AM
  #9  
Audiworld Junior Member
 
sephir's Avatar
 
Join Date: Feb 2005
Posts: 59
Likes: 0
Received 0 Likes on 0 Posts
Default Bad Viscous Fan Clutch (chicken or egg?)

Just noticed I had three blades missing last week. Brought it into shop on Thursday, they said I could drive it and told me to bring it back Tuesday while they waited for the new fan blade to arrive. Over the weekend a fourth blade came off and put two holes in my brand new radiator. Turns out the viscous fan clutch was bad . . . they tell me that can cause vibrations that can crack the blades. I can't help but think that driving around with half my blades missing wouldn't be good for the bearings in the clutch . . . I wonder which came first. But, anyway, it could be a bad viscous fan clutch.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
prinz charming
Audi allroad
5
06-12-2012 11:55 PM
NigelC
A4 (B5 Platform) Discussion
16
05-07-2011 11:29 AM
MontreAl
Audi allroad
4
08-29-2009 11:34 AM
Suburbia4
Audi allroad
8
09-26-2007 06:44 PM
kepstein
S4 / RS4 (B5 Platform) Discussion
5
06-09-2004 01:47 PM



Quick Reply: Anyone know what causes fan blades to break off?



All times are GMT -8. The time now is 05:04 PM.