Ricardo,
George Des did all the legwork and sent me a repair kit. It included new bearings, brushes, screws and o rings. The only part not included was the bellows seal. Took me an hour and all was good. The bellows is no longer available. You could get all the parts individually but for the cost George charges, it is well worth it. Look him up on the forum and send him an e-mail.
Note, I have the older style pump (230sl 66).
Regards
MBP