new rs4 with problems , help please

[white.akita]

If I apply vacuum to this pipe that goes down under the airbox I lose vacuum, is that normal ?
I am getting loads of vacuum to the inlet flaps and I'm not loosing any at all.
How can I get two conflicting fault codes that say the inlet flaps on bank 1 are both stuck shut and stuck open ??


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[Jon_J]

It says intermittent, when was it last carbon cleaned? Is it getting stuck due to carbon build up?


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[white.akita]

i have no records of it ever being carbon cleaned, its done 106k miles.
when there is no vacuum in the system i can move the inlet flaps very easy with pushing my finger against the plunger, if i reconnect the vacuum pipe that plunger becomes rock solid and i can no longer push it.
i find it hard to believe it is actually getting stuck as it moves so easily when there is no vacuum applied.

[white.akita]

im starting to think its the selonoid at the front of the engine that controls the inlet flaps that is broken. do i have to take the bumper off to change it ?

[white.akita]

when i try to test the inlet flaps with VCDS all i get is VCDS constantly and quickly cycling between off and on, absolutely nothing happens to the manifold flaps even if i put my finger on them and try to push slightly. its like once the vacuum is applied the manifold flaps slam shut and never open.

[white.akita]

Anyone help with this ?

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[rs user]

have you checked the sticky at the top of this section
gives a good guide how to check your flaps,solenoid etc and to use blocks 42 etc ...

[white.akita]

just a reply to say how i have fixed my issue, sick of reading posts where people have asked for help and not had the decency to reply with how they fixed the issue !
anyway my issue was the vacuum solenoid for the flaps at the front of the engine. it was a real pain to change due to limited space.
no more drc light.

[rs user]

glad you got it fixed-better than having to take the manifold off thats for sure...

[white.akita]

thanks arthur for your help
yeah removing the manifold was the last thing i wanted to do, that or take it to a dealer !
ive also learnt quite a bit about the car which is always good.

[Jon_J]

Good job


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