hi ,i have 07 elegance in UK ,twice now i have had while accelerating up a hill the power cuts to half ,but if i turn off and back on again the power restores ,very annoying ,any of you can help please cheers

 

has the cel light come on? was it during low revs or high? mine was doing this alot. Trouble was the cel would not come on thus not logging a fault code. Eventually it lost power twice in quick succession and threw a cel error, thus storing a fault code. Turned out to be a P0299 underboost problem. The dealer replaced the boost control solinoid (or something like that). This fixed the problem for me. But even this one code relates to around five possible component failures. Luckily for me the first one replaced fixed it. Best to get yours to a diagnostic machine and see it it has recorded any fault codes.