Thank you, it's caliper carrier Os/f . The guy tried to get parts but the local VW dealer couldn't get them. Then he offered to buy it which is odd when he can't fix it. I can't do any of this stuff unfortunately I have to take it to a garage. I found a site that puts requests to breakers in UK but no responses yet. This Lupo is apparently limited edition. Gearbox was serviced last year. I assume they changed the fluids, I will ask them Thanks for the heads up.