Hello,
Today my '99 ML320 (78,000 kiles) started missing when I first started it this morning. I could clearly feel that it was not firing all cylinders. After a moment i 'thought' it was running better but as soon as I got on the highway I clearly found that it had no "get-up and go". The engine just sounds different, indescribable but something is different sounding.

The CEL has not lit up but something is clearly wrong. Maybe I am jumping to conclusions since I have seen so many MAF failures posted on here but maybe that is it or maybe something else.

When I pulled it back in the garage I could smell gas which I've never noticed prior to this problem.

Any ideas? Can a code even be pulled from the computer if the CEL hasn't come on?

Thanks! John