S8 - Revs Wobble at Idle

[moltuae]

Originally Posted by ahd91

May have solved my issue! Discovered that one of the fuse holders attached to the TCU (5 amp, wires labeled 41) was corroded - just poking it would cut the engine. Cleaned it up, put a new fuse in, and all appears to be as it should be. Fingers crossed.

Certainly sounds likely. Hopefully that's the one!

And even if that doesn't cure it completely, it sounds like you've located the problem area; it's likely there may be some further corrosion on adjacent connections.

[Goran]

Well done! must be a great feeling when its a simple almost free fix for such complex set of symptoms.

[ahd91]

Yes, was driving me mad! I'm not letting myself get too excited just yet though. I won't know whether it's fixed until it goes for several days without stalling, so I'm commuting nervously at the moment.

[ahd91]

Just checking in to say that I've now gone a full week, for a total of 9 hours of driving without any issues at all. Almost certain I've got it.

Big thanks to all that chipped in