Loud Air Noise on Boost

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
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RS6_Drew
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Location: Rochester, KENT

Loud Air Noise on Boost

Post by RS6_Drew » Fri Dec 05, 2014 7:45 pm

Hi Guys,

Wonder if anyone can point me in any sort of direction to look.

So normal driving, off boost is quiet, and wouldn't think there is an issue. On boost I can hear a loud constant release of air, so I'm thinking a hose relating to one of the turbos has split. (More power/boost, more air noise)

1. Do you think I am right in this assumption?
2. Are they any known "weak spots" with pipes that I should check first, or is it a case of checking all?

Any advise is better than I have at the moment.

RS6's are a bit of an unknown for me - owner for a year only.

Thanks All in advance.

Drew :)
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Shoppinit
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Re: Loud Air Noise on Boost

Post by Shoppinit » Fri Dec 05, 2014 9:23 pm

Probably the bottom hose has popped off. Very common. Easy fix. Needs to be fixed asafp.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
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RS6_Drew
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Re: Loud Air Noise on Boost

Post by RS6_Drew » Fri Dec 05, 2014 10:10 pm

When you say, bottom hose, are you referring to the bottom hose from the intercooler I assume?

Is it easy enough to get to from underneath?

Thanks

Drew
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Shoppinit
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Re: Loud Air Noise on Boost

Post by Shoppinit » Fri Dec 05, 2014 10:23 pm

Yup. Easy enough if you can get the front in the air. Just drop the sump guard.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
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RS6_Drew
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Re: Loud Air Noise on Boost

Post by RS6_Drew » Fri Dec 05, 2014 11:23 pm

Great - thanks - I'll have a look tomorrow.

Drew
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audiacious
1st Gear
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Re: Loud Air Noise on Boost

Post by audiacious » Thu Dec 11, 2014 3:46 pm

Shoppinit wrote:Probably the bottom hose has popped off. Very common. Easy fix. Needs to be fixed asafp.
ASAFP. I can vouch for that!
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