Hi all, can you help. I have a low mileage CLK 270 Cdi with fsh. Had the car serviced about 3 months ago and having used the car for work (125 mile round trip) it wouldn't start, but eventually the RAC got it going. A week later same thing, but this time wouldn't start and the garage found air in the fuel pipes, so replaced the fuel lines. A week later having used the car again for work same happened, air in the fuel lines. All joints are tight but air still seems to be getting in. I have an E class 280 Cdi for work normally but love driving the clk , help please.