Part number for wheel bearing is listed as 4a0498625 and is 82mm which is the larger bearing and that is for all models in 1990 (other bearing is 75.07 mm but only upto 1986 model year)
hub is part number 4a0407615d and states 5/112 stud pattern if turbo (MC engine code)
443407615b 4/108 stud pattern (NF KU NP PH SH 4B engine code)
seeing as yours is a turbo the first hub part number should be for you.
what part number did the garage get, and were they from an Audi dealer, cause when i look on ETKA it is straight forward
hope this helps.
eltee
__________________
88 100 cs sport
|