Hi All,


So the story begins with a 120,000km major service, change of brake fluid. Of course we failed to notice the clutch takes from the top of the reservoir, and we let air in.

Tried all sorts of bleeding techniques- every mechanic and his dog (Including Volkswagen themselves) advised us on how to do it properly and nothing worked.
Took it to a mechanic who didn't do it properly.

Finally found a bloke who power bled it, reckoned there was **** loads of air sitting in the master cylinder.

Since then the box has been mostly amazing. Beautifully weighty changes through every gear (except second) and the horribly lurching changes I was experiencing with the air-con on are gone!!!

However, second gear is still gravelly and a tiny bit crunchy on maybe 30% of changes up and down? It also makes me try for first a couple of times around 50% of the time.

I'm aware that Volkswagen has a habit of making **** synchro rings and these 6-speed boxes are particularly glassy. I'm concerned that in the time the month or so it took me to fix the problem while the clutch wasn't disengaging properly, I've damaged the box.

Is anyone aware of similar issues with the little 6-Speed? There are some assorted topics where a change of gear oil was the solution- does anyone know the ideal gear oil for the job?


TL;DR
Second gear is crunchy. How do I fix it.