W220 S500 Misfire

[BlackC55]

I would not be happy with the lumpy tick over.

What did they say that was?

 

[greatw]

They're not sure. It doesn't always do it so its difficult to tie down
Just had the MAF done so its unlikely to be that although I could take it back to the stealers who fitted the MAF and say "its not right" ;-)

 

[C43AMG]

They're not sure. It doesn't always do it so its difficult to tie down
Just had the MAF done so its unlikely to be that although I could take it back to the stealers who fitted the MAF and say "its not right" ;-)

I would.

 

[mabeaver]

Just had a very similar problem. Major misfire reporting as P0304, ordered a new MAF sensor as this seems to be the common cause of misfires. Before changing the sensor I had a look at cylinder 4 and noticed the connector into the coil pack had worked its way loose. I put it back together and everything ran smoothly!!! Im going to replace the MAF any way as it seems like its almost a serviceable part.

Matt