The seal on the drivers side of my rack has failed. I've seen the rack is a bit of a sod (the £1000 bolt

). As the rack still feels good ( no nochy-ness when driving along) o i was looking at either refurbishing my rack (new seals all round)
or buying another but it seems there's like 5 different versions. So does anyone know where to get the correct one from (Aside from Audi)
Thanks in advance