Main dealers are doing some service exchange parts now. I got a service exchange EGR valve for my citroen van the other week.I've been pleasantly surprised with mercedes main dealer for service parts, discs and pad where actually coming in cheaper than euros.
Camberley Auto Factors - became Andrew Pages and then went skint...
Most Andrew Page branches (the good ones) are owned by Parkers motor factors chain
now....
Had the exact opposite experience with LLLparts with BMW partsI've had very good experience with lllparts for genuine VAG parts always cheaper than main dealer - sometimes by 30% ish. I think they also deal BMW and Mercedes