I had a similar clonking noise from the rear when I bought my C-Max 3 months ago. I eventually traced it down to the plastic tubes that cover the centre rod on the shock absorbers. This had come 'unstuck' from its base - some type of foam rubber cushion, allowing it to rattle about. I just glued it back in place and the clonking disappeared.
By the way, I have a 1.8 petrol Zetec, and I am also disappointed with the fuel consumption like many others - only 35 mpg at 70 mph. It seems that this is typical of what I can expect.
By the way, I have a 1.8 petrol Zetec, and I am also disappointed with the fuel consumption like many others - only 35 mpg at 70 mph. It seems that this is typical of what I can expect.
