johninwales
New Member
Recently noticed that I am blowing out loads of black smoke under heavy acceleration. Performance, idling and fuel economy all seem OK.
The Air Filter Restriction Indicator no longer shows a reading (orange area) Serviced by MB about 7K ago.
Bearing in mind that a filthy filter can cause smoke the question is: should the Air Filter Restriction Indicator be clear (Black) if air filter is OK, or should it be showing orange at 100% if filter is OK.
The Air Filter Restriction Indicator no longer shows a reading (orange area) Serviced by MB about 7K ago.
Bearing in mind that a filthy filter can cause smoke the question is: should the Air Filter Restriction Indicator be clear (Black) if air filter is OK, or should it be showing orange at 100% if filter is OK.