Just a quick update, recovered E55 to Avantgarde in clevedon as they were the closest specialist, got a phone call on Thurs saying they can’t get refurbished pump to work (gutted) so phoned SBC Johnny, he has said pump bench tested perfect, anyway I asked if he could speak with Steve at avantgarde which he kindly agreed to. So I’m between a rock and a hard place now. Just waiting now to see if a different approach has brought the pump to life. I’ve contacted vince Ewing at Exeter Mercedes’ to see if he can give me any info on extended warranty, he was unavailable today, but will contact me next week, so I’ll keep you all posted. I’ve also got a price of around £1600 including vat on reman pump from Taunton Mercedes’, if I have to go down that route, really hope this can be sorted.