When I converted my FAA CPL/IR/ME to JAR last spring I had to take the MEP skills test separately from my IR test but I did combine it with the 170A check. I was exempt from taking any groundschool or exam for the MEP because I had several hundred hours of ME previously. I suspect if you dont have any multi experience then you will have to take the groundschool and exam for the MEP class rating.
Good Luck