1.2 TDI - "Knocking" gear changes

[luzt]

Greetings fellow enthusiasts!
 

A hard metallic knocking sound has presented it self when changing gears while driving, it's consistent as it goes through gear 1-4 but almost quiet when switching into fifth.
You can actually feel the gear changes (very noticeably) as the gangsteller switches between gears. I've done numerous gear adaptations, no play what so ever in the gangsteller linkage.

The clutch, including the bearing only has 100 000km on it, the gearbox bushing (linking it to the subframe/pendulum support) has only 50 000km on it.
The sound and feel when changing gears stationary is relatively quiet/subtle.

If it would have been between a specific gear, say 2->3 I'd be guessing on a shift fork going bad for that specific gear, but as it's between 1-4 I can't really pinpoint the fault.
Has any one come across this before? Might I have to put in a re-built gearbox?

Please tell me I've ovelooked something very simple, humiliation is much easier to cope with then spending thousands of euros.

Bearbeitet 12. Juni 2017 von luzt

[Mankmil]

Simple question first: Is there enough transmission oil in the gearbox?

[luzt]

vor 2 Minuten schrieb Mankmil:

Simple question first: Is there enough transmission oil in the gearbox?

Yes, changed it about 500km ago.
Put in about 2,9-3L, the knocking sounds where there before the oil change.

No strange colours or metallic fragments.

Bearbeitet 12. Juni 2017 von luzt

[Phoenix A2]

Already checked the inner/outer CV joints for too much play?