I have a CLK200 which has had two new Air flow units over the last year & 1/2. The management light is still on after countless re-sets and the errors range from Altitude pressure sensor to secondary air flow unit, mast unit faulty, barometric sensor . When I change something it works fine for a day or two and then goes back to sleep mode. I have tried everything and I'm still down on power and slow to accelerate. I had a problem with that manifold and got it resealed by a company that does them.
An ongoing fault may indicate a wiring problem (poor contact etc.) as it is highly unlikely that 2 air flow meters will fail so soon. If you are able please indicate year model and actual fault codes.
Linear Mode
