I suspect a faulty MAF on my W208 CLK55. There are no check engine lights,
but I have been advised to run a diagnostic. My question is, will a faulty
throw up a code?
Symptoms are that the car feels unresponsive and asthmatic, especially under
heavy acceleration. It should be shoving me in the back and it's not. When
accelerating hard, the automatic transmission tends not to shift up when the
revs get up high, even to nearly 6000rpm. It will shift up after I take my
foot off the pedal, but the power isn't really there by then.