I have a C250TD with a worrying drink problem, its a 97 saloon 5 speed auto with 130k miles and its been bad since I bought it 3 months ago. I have just refilled after 280 miles and it took £40 of diesel, this works out at 27mpg, this is not right, the 280 miles were a mixture of motorway and town driving, any ideas welcome, cheers Steve.