If yours is a Mk1 cabrio obviously check all the bushes, brackets and ball joints are OK ( as people have previously mentioned )
As regards for adjustment : on the underside of the car there is ( or should be, unless its missing ) a round plastic cover on below the gear lever .
( All done from underside of car )
1: Select neutral
2: Remove cover
3: Slacken pinch bolt on shaft situated up by the rack / gear box 13mm
4: Find a spacer / socket with an outside dimension of 10mm
5: Place the spacer between the bottom of the gear lever and the reverse gate slide holding the lever in midway position along it.
6: Tighten pinch bolt
( Easier with 2 people but can be done with with 1 )
If the rest of the linkage is OK you should be able to get all the gears after this adjustment
P.S. Can take a couple of goes to get it right when attempting it for the first time ( or am I thinking of something else ?.....SAY NO MORE !!! )
P.P.S. ideally a diagram would explain it better, but I hope my description helpsÂÂÂ

Hope this is of some use,
                  Oli
