Exhaust flaps
Exhaust flaps
One of my exhaust flaps has seized in the closed position and one in the open position. If I try and brute force the closed one, do i apply pressure to top or bottom half of the flap?
Re: Exhaust flaps
soak it first with a penetrating solution before trying to free it up.
Avus Audi RS4 2076|Black optic |Carbon Airbag surround|LED'S inside|RNS-E style Android Stereo with DAB+ dongle|
Re: Exhaust flaps
Can't remember which way it goes, but if you shine a torch up the one that works and get someone to press the sport button a few times while ticking over you will see which way they turn.
Re: Exhaust flaps
Thanks Mike. The other one had seized open, so difficult to tell which way it goes.
Re: Exhaust flaps
As yes, sorry I misread that. Mine are disconnected and probably seized now so can't really help I'm afraid.
- orangepeel
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Re: Exhaust flaps
Top pushes back if that helps
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Re: Exhaust flaps
The flaps open sideways i think. I would disconnect the vacuum line, apply wd40. Give it 5 minutes and then apply some force.
Daytona Grey, Bilstein Coilovers, Pre-cat delete, Centre resonator delete, IM flaps/vains delete, Interior/Exterior LED kit, CAI, Black Optics.
Other car: Bread Van
Other car: Bread Van
Re: Exhaust flaps
Soak it in some WD40, get a broom handle that covers half of the flap, then chap on the end of it gently with a hammer until you start to get some movement.
B7 RS4 Saloon - Sprint Blue
Re: Exhaust flaps
Top tips. I will give it a try this weekend.
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Re: Exhaust flaps
Just followed this procedure on mine as the flaps were seized shut & it's worked a treat! I want to keep the flaps open now so in order to do that do I just disconnect the rubber vacuum pipes at the side of the exhaust & if so, do I need to put anything over the ends of the pipes/actuators once disconnected or just leave them hanging in mid air etc?? 

Mugello Blue B7 RS4 Avant, Black Optics, Buckets, FBSW, Carbon Inlays, Completely Standard
Previously owned:-
Nissan Sunny GTi-R
Renault Clio Williams
Ford Escort RS Cosworth
Renault Clio V6
Mitsubishi Lancer Evo 7
BMW M3 E46
Previously owned:-
Nissan Sunny GTi-R
Renault Clio Williams
Ford Escort RS Cosworth
Renault Clio V6
Mitsubishi Lancer Evo 7
BMW M3 E46
- PetrolDave
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Re: Exhaust flaps
You must seal the vacuum pipes - otherwise none of the vacuum operated flaps on the engine will work properly and you'll probably lose about 60bhp (estimate from Doug at MRC).RSCosworth wrote:do I need to put anything over the ends of the pipes/actuators once disconnected or just leave them hanging in mid air etc??
Just find a correct sized bolt, and screw that into the end of the pipe.
Gone: 2006 B7 RS4 Avant (Phantom Black)
Re: Exhaust flaps
Golf tees are best, just push them in there hide pipes in rear diffuser and job done. Most satisfying 10 mins I have spent in a while
06 Phantom Black RS4 Saloon(since Jan 15)
19x9.5 Bola alloys, LED interior/door lights, exhaust flap delete, pre-cat delete, resonator delete, chrome to black optics, B&C pillars, rear boot strip, front grills & lower intakes gloss black, revolution induction kit, LED Drl's, de-tangoed, RNSE delete - Pioneer Apple CarPlay, reverse camera. 380mm upgraded JHM front rotors, Eibach control arms, Bilstein P14's, MCarbon diffuser & Cupra R splitter.
19x9.5 Bola alloys, LED interior/door lights, exhaust flap delete, pre-cat delete, resonator delete, chrome to black optics, B&C pillars, rear boot strip, front grills & lower intakes gloss black, revolution induction kit, LED Drl's, de-tangoed, RNSE delete - Pioneer Apple CarPlay, reverse camera. 380mm upgraded JHM front rotors, Eibach control arms, Bilstein P14's, MCarbon diffuser & Cupra R splitter.
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Re: Exhaust flaps
Done! Cheers mateyPetrolDave wrote:You must seal the vacuum pipes - otherwise none of the vacuum operated flaps on the engine will work properly and you'll probably lose about 60bhp (estimate from Doug at MRC).RSCosworth wrote:do I need to put anything over the ends of the pipes/actuators once disconnected or just leave them hanging in mid air etc??
Just find a correct sized bolt, and screw that into the end of the pipe.

Mugello Blue B7 RS4 Avant, Black Optics, Buckets, FBSW, Carbon Inlays, Completely Standard
Previously owned:-
Nissan Sunny GTi-R
Renault Clio Williams
Ford Escort RS Cosworth
Renault Clio V6
Mitsubishi Lancer Evo 7
BMW M3 E46
Previously owned:-
Nissan Sunny GTi-R
Renault Clio Williams
Ford Escort RS Cosworth
Renault Clio V6
Mitsubishi Lancer Evo 7
BMW M3 E46
Re: Exhaust flaps
Evening all
I have just viewed a car whose flaps didn't open - neither of them. The bolster worked perfectly and everything else about the car was great... And so my question: if I try the lube and yet can't get theses to manually free up and start working fine, what else could it be?
Cheers,
I have just viewed a car whose flaps didn't open - neither of them. The bolster worked perfectly and everything else about the car was great... And so my question: if I try the lube and yet can't get theses to manually free up and start working fine, what else could it be?
Cheers,
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