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What ECU will you be using?

Looks pretty good to me!

I'm not 100% sure about this, but I think the butterfly valve is driven (against spring resistance) by a DC motor using PWM from the ECU to control the force. The body has 2 variable resistor tracks in it (possibly doubled up for redundancy) - I'll have to dig out my autopsy photos to check. One tra...

Looks like a good car if you can live with the colours. Not sure I could.

Can't find it. Got a link?

The S8 is a V10.

Definitely. Future classic, that. Consider a Phaeton, too. Nicely rare.

Oh. My bad. That’s a completely different problem then. Immobiliser won’t stop it cranking. Check the gearbox with vagcom to see if it thinks the selector isn’t in P. Check the 200A fuse in the scuttle. Get a LED or multimeter on the starter to see If it’s getting a signal to the solenoid. Check the...

Sounds like the crank position sensor. Quite common failure and symptoms like yours.

Doesn’t give any fault codes. Cranks but just doesn’t fire.

I love that engine. Bulletproof from what I hear. Get one while you still can.

Time for PS4S.

Did you mean to post this on the C6 forum? No oil seal problems with the C5.

Yeah. It’s odd that it’s soiled its pants like this.

The battery might be coincidence. Or maybe the battery is a symptom, not a cause. Vagcom will tell you what the CCM thinks is happening with door sensors etc.

What does the vagcom say?

Careful that they’re not just for LHD cars