Salutations everyone,
2016 Bluetec W212 (S212 family) waggon. Every few weeks, you can see the engine management light and limp mode turning on. Fault code: mass air flow. The little copper sensor had a lot of black carbon deposits, so I removed it and cleaned it with MAF cleaner. After that, I used the OBD scanner to clear the error. After then, everything was OK for a while, but it eventually returned to its previous state of malfunction. I immediately went into limp mode after installing an aftermarket sensor. I hastily reinstalled the previous one. When I accelerate quickly, the engine management light and limp mode appear. Extra miles on the highway. almost 220,000. Have you any idea? Who makes the EGR/DPF/Turbo/MAF sensors? I'm merely a passionate novice. Having owned it since new and diligently attended to all repairs and maintenance, I am hoping to keep it running. It has been well-maintained and has no other issues. I am looking for some experienced advice.