Then it wasn't done to the correct parts replacement program - that's the only way. I do the A/C'd F4R's for £450 (less dephaser) and non A/C'd F4R's for £280 so I bet he did timing belt kit and *maybe* a new aux-belt. No oil seals, re-sealing of the carriers, aux-kit, etc. If he did then please give me his number cos i'm gonna throw a lot of work his way.