MK7.5R Idle jumping issue

[know7r]

Hi guys, recently acquired a 7.5R DSG and notice whenever I come to a stop, when the car is fully stopped & RPMs drop, it'll go back up to 1,000 for a second and may even try to rise back up a 2nd time slowly, then drop again to 800~ (normal idle). I stopped multiple times and confirm it keeps doing it. Can also feel slight vibration under seat during that moment of stopping. Unsure if the vibration is related to my 034 dog bone mount.

 

So odd, does anyone know what would be the cause or experienced this? I'm thinking PCV valve, vaccum leak or even DSG related which I hope not.

Thanks

[FishingVWR]

I've had a rev issue since I purchased the car a couple of years ago. When coming to a stop, sometimes the revs drop a little too much (then bounce back up) resulting in vibration in the seat. It never stalls but it doesn't feel great. It's even worse without the AC on as obviously the revs drop even lower.

 

Sounds a bit different to yours, but thought I'd share.