Rev's hunting at idle

[ac427]

The rev fluctuate at idle like someone is gently pressing the throttle.

Does this sound like a vanos solenoid issue?

I'll check for codes but i don't think there are any.

[ac427]

I replaced the Vanos solenoid and gasket but the hunting issue still remains.

Has anyone experienced this?

[Bounce]

Turn the air con off and see if it still happens

[M3KVU]

Had these symptoms earlier this year and it was the front TPS.

[Sailorbaz]

Turn the air con off and see if it still happens

Yip, mine has always done it with the AC on. Just the load I suppose.

[ac427]

Had these symptoms earlier this year and it was the front TPS.

Did an error for the TPS sensor show up in diagnostics?

[M3KVU]

Did an error for the TPS sensor show up in diagnostics?

Yeah it did , iirc it was inlet cam sensor bank 1

[cantfind1]

You get this sorted?
Have you done a vanos pressure check? Should be up around 1500-1600psi

[ac427]

You get this sorted?
Have you done a vanos pressure check? Should be up around 1500-1600psi

Not yet although it is intermittent.

How would you measure the vanos pressure?

I did get an error code "Inlet VANOS, advance valve" via PA Soft. So i thought i might replace the TPS but knowing my luck if it is the TPS it will the one below the airbox.

[cantfind1]

https://youtu.be/YqYD03Ec8js

I'd also run vanos test with Diagnostics. Hunting at idle generally caused by a vanos issue.
Seeing that you have a code as well seems a great place to start.

Vanos pressure very important. Low pressure cams will not move or be lazy.

Will also cause issues with shifting with SMG as both ECUs are not seeing what they expect.