hi peeps. i have a 1990 S2 rs turbo. i recently renewed the clutch and release bearing. however, upon completion of the job the speedo has now ceised to work. the speedo head itself is ok along with both sections of the speedo cable as well. this only leaves a problem with the box itself as far as i can see. is this a common fault? if it is the box itself which is at fault is there a repair which can be carried out or would it simply be easier to replace the whole box fullstop?

any help would be greatly appreciated

DaveRS