Exhaust Valves Disabled

2.9 V6 24v TFSI - 444 bhp
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AndyL
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Exhaust Valves Disabled

Post by AndyL » Sun Aug 12, 2018 6:58 pm

Just unplugged the connectors to the exhaust valves and wow! what a difference it makes. Car should of sounded like it from factory. There is a slight droan at motorway speeds, but I normally have the music on reasonably loud that its barely audible. It can rattle the inside of the car a little if you put your foot down a little bit at under 2000rpm. Thinking about getting one of those miltek (or other brand) boxes that allow you to control the exhaust valves yourself rather than having them permanently open.

PieterZ
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Re: Exhaust Valves Disabled

Post by PieterZ » Sun Aug 12, 2018 7:58 pm

Am I missing something? You can customize the settings, one of them is flaps open.
All black B9 RS4

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MikeFish
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Re: Exhaust Valves Disabled

Post by MikeFish » Sun Aug 12, 2018 8:33 pm

PieterZ wrote:
Sun Aug 12, 2018 7:58 pm
Am I missing something? You can customize the settings, one of them is flaps open.
If you mean on the MMI then they are not always open, they still close at certains revs. Disconnecting them means they are open at all revs all the time and regardless of Drive Select mode.

PieterZ
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Re: Exhaust Valves Disabled

Post by PieterZ » Sun Aug 12, 2018 9:25 pm

Ah ok, I didn't know that.
All black B9 RS4

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Madelvic
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Re: Exhaust Valves Disabled

Post by Madelvic » Sun Aug 12, 2018 9:29 pm

How do you do this? Ta
Macan GTS
Boxster S
Previously
Audi RS4 B8
Audi S4 B8
Audi S4 B6
Nissan GTR,
Lotus Elise 111R,
Caterham,
Golf GTi Mk 1, Mk 2, Mk 3, Mk 4, VR6,
Various SAAB Turbos
Peugeot 205 GTi,
RS2000

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MikeFish
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Re: Exhaust Valves Disabled

Post by MikeFish » Sun Aug 12, 2018 9:39 pm

Disconnect the plug from the exhaust valves.

SteveoM
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Re: Exhaust Valves Disabled

Post by SteveoM » Tue Aug 28, 2018 8:03 pm

Should the electrical connector just pull off or is there some sort of catch you need to release as mine won’t budge! Thanks

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MikeFish
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Re: Exhaust Valves Disabled

Post by MikeFish » Tue Aug 28, 2018 8:06 pm

Yes there is a little catch to stop it vibrating off. I think someone had a photo of it on here recently, but it might have been in the RS6 forum.

SteveoM
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Re: Exhaust Valves Disabled

Post by SteveoM » Tue Aug 28, 2018 8:12 pm

Magic - thanks

AndyL
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Re: Exhaust Valves Disabled

Post by AndyL » Wed Aug 29, 2018 10:22 pm

Its the same type of connectors used on plugs in the engine bay. Have a look at the connectors in there to see how it works.

GillyLad
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Re: Exhaust Valves Disabled

Post by GillyLad » Tue Jan 12, 2021 8:35 pm

Hi guys, my back right flap makes a rattle noise & open & closes, the other side stays shut. Is this normal? It’s under warranty

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quattro
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Re: Exhaust Valves Disabled

Post by quattro » Sun Jan 17, 2021 12:26 am

I have the same issue. I have an appointment with the dealer Monday they said it could be a problem with the electric motor. Right hand side for me as well. Mmh

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