Thread: Small flashing red light what does it mean

Beamin, Hi, my D4 3.0 is in the workshop at the moment, having checks done to trace reason for my Restricted Performance event, a couple of weeks ago.
The job is taking a long time, and I assume something like your failed item makes diagnosis, and repair a little easier.
Can I ask if you remember, when you were driving in limp mode, ie,during loss of power, if you heard a high pitched 'Whine', somewhat similar to a Police, or Ambulance siren, whenever you eased off on the throttle. This whine would stop when the throttle was used again, and returned each time you released the throttle, even slightly.
I ask, because the Fitters are going to pressurise my inlet manifold, and check for leaks using smoke.
Thanks.

I didn't notice any whine like you describe, but I only drove for a few minutes in restricted mode and that was on a busy freeway so very noisy. The only time I was fully off the throttle I was hard on the brakes to stop in a tiny emergency phone bay. I didn't notice unusual sounds but could easily have missed something like that. The workshop used the smoke trick to find the crack. Still waiting for parts but should be fixed by Friday and able to test then whether there might have been any other cause for the restricted performance warning. Hopefully that's the end of it and I can have my car back soon