ISSUE - Revs climbing when changing gear (Video Attached)

[Mayney]

Hi all,

New issue has arisen on my car today... the revs seem to climb when inbetween changing gears (Clutch pressed) meaning its very hard to change smoothly unless i wait around 3-5 seconds for the revs to dip again.

The issue seems to worsen (revs climb more) with more throttle input. It tends to become noticeable when going above 2000rpm. I have attached a video demonstrating the issue.

The car is R Tech 2+ spec. PCV is deleted and this issue wasnt present a few days ago.

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Anyone have any ideas on the cause of this? I was thinking maybe breather or throttle body related?

[Mayney]

To add/clarify to this..

The revs rise in between gear changes (OFF Throttle/ Clutch depresses) The rise in revs seems to depend on how much throttle was being applied in the build up to coming off throttle.

The exhaust note seems a but different.. And the boost does not come in linear like it usually would. Throttle inputs between 25-75% seem very jerky almost like it cant decide how much boost.

Ideally i need to log in VCDS but until the lockdown is finished this seems unlikely... any ideas are appreciated :)

[Mayney]

Scanned it and had a clutch switch related fault. Ordered the new "hall" sensor as VW call it. Will keep posted.

[Mayney]

New hall sensor/switch and a 5A Fuse in engine bay F39 has fixed the issue!

[muff1991]

Glad you fixed it mate, read the title and thought clutch switch straight away.
This used to happen on the mk4’s too and was related to the coolant temp sensor.


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