Right guys I'm after some help. When I purchased my 2006/7 CLS cdi it needed a service, to cut a long story short it had one at my expense as the supplying Vauxhall dealer refused. Anyway, once serviced a few faults were found and rectified by the dealer once they agreed they were current etc. One of the faults was the Air flow sensor, Code:2645-001, Check component B2/7 (Right hot film mass air flow sensor ) value above limit. The Air flow sensor was changed by the dealer 2 month ago but the exact same fault has returned, I'm wondering if A: The dealer never changed it or B: There's a bigger issue lurking and they thought I wouldn't find out until I had it serviced after the warranty period but I have, lol. Thanks in advance, Ade.