Air Flow in a Large Area

[drummer]

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.

[WordSmith]

In most cases, air mass faults will result in an air leak. Before you start throwing components at it, make sure the intake is smoke tested.

[jimmy47785]

Constant stalling and terrible gas mileage were just two of the several problems with our 1994 E280. Forgot to clean the MAF.

Everything is back to normal now that I bought a Pierburg MAF from AutoDoc for around 160€. Besides spending forty euros on two new engine mounts, this is the finest improvement you can make to this vehicle.


Some online discussions have made the case that the Pierburg MAF is an improved and far less expensive alternative to the original. That is something I am not qualified to say anything about.

We also conducted a smoke test, and the results were encouraging.

Hope everything works out.

[Screwdriver_1]

Make sure the EGR isn't jamming before proceeding.