Loud knocking when stop/start kicks in

Gary Gazbo

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Jun 16, 2020
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London
2016 Audi A1 1.4 TFSI Manual.

Got a loud repetitive knocking/clunking coming from the passenger footwell area when the stop/start kicks in when stationary and in neutral. Goes away when the engine starts again.

Booked it in for investigation at local Audi dealer - 3 week wait!

Can't find any similar problems on any forums.

Any ideas what it might be? What is still running whilst the engine has stopped?

I can't get out and open the bonnet to have a closer look because undoing seat belt and/or opening door disables the stop/start.

I'll probably disable it on the dashboard each journey until it's looked at.