A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Turbo Noise

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Old Dec 23, 1998 | 08:43 AM
  #1  
KAZ
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Default Turbo Noise

I noticed this first cold morning that the turbo makes quite a bit of noise until the car was warmed up. Is this a normal thing to hear ? I've never owned a turbo'd car before so don't know what to expect.
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Old Dec 23, 1998 | 08:46 AM
  #2  
JT
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Ditto! I noticed it this morning on my way into work! Weird, huh?
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Old Dec 23, 1998 | 08:51 AM
  #3  
Becker...
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Default My '95 Eclipse did, don't miss the cold morning whistle. 98.5 2.8QM!

(nt)
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Old Dec 23, 1998 | 09:33 AM
  #4  
ErikR
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Default Re: Turbo Noise...

Are you sure it is the turbo?<br>My fan belts make a ton of noise at warmup, but my turbo only makes noise at full boost.
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Old Dec 23, 1998 | 10:01 AM
  #5  
JT
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May not be turbo, but something was making significant noise this cold am!
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Old Dec 23, 1998 | 10:42 AM
  #6  
Ash
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Default Re: Cold Noises (Long)

It was about -13 Celcius (8 F) last night and this morning here in Toronto, and I had the same noises. One of which is definately the fan belt, and the second being the turbo....it seems to make more of a whistling sound now than before, at lower boost levels. When warmed up, it is barely perceptible even at full boost, but when it's cold, it's there for sure.<p>Incidentally, I had a weird noise coming out of the right side of the car ( I think). At about 2100 to 2400 rpm when the car was still very cold. Seemed like some kinda wheel bearing noise, or as if the brakes were lightly grinding against the rotors...(don't think this is it since it wasn't high pitched like a brake squeal). Anyone else experience this? It was gone once the car warmed up though...<p>Hate this cold....but thank GOD for those seat heaters....<p>-Ash Silver 98.5 1.8TQMS
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Old Dec 23, 1998 | 11:08 AM
  #7  
jfl
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If you hate the cold, leave Toronto!
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Old Dec 23, 1998 | 11:10 AM
  #8  
qt4lddht
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Me, too. I just wish it whistled at me all the time, but maybe when I chip it...
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Old Dec 23, 1998 | 11:12 AM
  #9  
DaveN
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Default Is it kind of a moan?

I've been getting a moaning noise, engine speed sensitive, close to the fan belt. I think it might be the fan clutch. It also goes away just a little of idle. Is that the noise you guys are getting?
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Old Dec 23, 1998 | 11:42 AM
  #10  
Ash
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Default Re: Is it kind of a moan?

Hmmm, haven't heard that one....our cars sound like 80 year old geriatrics!<br>All kinds of noises emanating from them! <p>The fan belt noise that I got wasn't a moan, higher pitched than that...can't really describe it. But the other noise I got was only during driving, at about 2100 to 2400 rpm in all gears....more like a "woowoo" sound that sped up as my speed increased...transmission, driveline, who knows....<p>-Ash Silver (and Salty) 98.5 1.8TQMS
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