300 specialist in the West Midlands???

Might be a bit of a long shot but are there any specialists/owners of 300s in the Coventry, B'ham area interested in diagnosing a running problem??

Reason I ask is because a relation of mine has a 2 litre 360(?) that suffers from occasional rough running. It sounds like a fuel pump problem to me, based on a problem I had with a 740 a while ago (in tank pump died and the car stuttered under load if the fuel level dropped below 1/4 tank).

Are there two pumps on the 360 with the intank one prone to failure, or another common problem area I should tell him about?

T'would be great if my relation could get someone to look at the car for him - he's had a couple of people look at it but with no conclusive answers - I can't look myself because I'm out of the country. Any pointers to specialists/enthusiasts in the Midlands area?

Thanks
Sean