Please help, my W reg ML320 is badly misfiring! It has been going on for months, I pull away and it goes into limp mode. I turn it off and the problem sometimes clears. On over-taking, it sometimes loses powere and this morning i nearly had an accident. We replaced the oxygen sensor and the problem still happens. I took it to the garage and the diagnostic was 'ECU random misfire'!
We replaced the MAF sensor and it improved for a while but now it is bad again. It is worse in damp and cold conditions. It is driving me nuts!! Please help!
We replaced the MAF sensor and it improved for a while but now it is bad again. It is worse in damp and cold conditions. It is driving me nuts!! Please help!