RS246.com Forum :: The World's #1 Audi R, S and RS Enthusiast Community

Another post about inlet flaps.

Burty's recent post where he is moving on from his RS4 has got me worried. He highlights he had an expensive ownership experience due to a manifold flap bolt coming loose & costing a few quid to rectify

I'm not sure if my car has had the flaps removed. It was carbon cleaned before I bought it but there is no mention of the flap delete on the paperwork.

The car has a definite stutter when cold - which can be a symptom of the flaps being removed but not definitive.

Is there a test using VCDS I could do to measure air flow in the manifold which may give me a better indication?

I know I can check the operation of the flaps but if the actuators & arms are still present, this doesn't give me the answer if the flaps are attached or not.

I could physically remove the manifold, but this seems like a lot of effort to just check the flaps.

Any thoughts are very welcome.

Thanks

Anyone got any ideas of how to check other than removing the manifold?

Hi
I understand your concern - I'd suggest giving Martin at Unit20 a call who I'm sure will give you some good advice - he was always very helpful whenever I rang him about issues.

One idea, i have mine off atm so made a video.

When the flaps are fitted, actuating the shaft by hand should feel them provide a positive stop as they contact the manifold wall.

No sure what the procedure is for de-flap, is the shaft locked? Otherwise it will rotate until the actuator hits its limit.
Either way, it will feel different.

https://youtu.be/m-0X08i4zRE

lugars4 wrote: ↑

Fri Mar 15, 2024 8:12 pm

One idea, i have mine off atm so made a video.

When the flaps are fitted, actuating the shaft by hand should feel them provide a positive stop as they contact the manifold wall.

No sure what the procedure is for de-flap, is the shaft locked? Otherwise it will rotate until the actuator hits its limit.
Either way, it will feel different.

https://youtu.be/m-0X08i4zRE

That might be worth a try. Might give me more of an idea. I'll have a look tomorrow & report back what I reckon!

Hmmmm, now I'm not sure. There is definitely a tapping noise but it seems at the bulkhead end. I don't know if there would be a limit point without the flaps where the runner sits/rotates.

Either way, the manifold will have to come off!