NOTE: This repair was done on my 1994 C280. However it may work for other
years/models. I cannot guarantee 100% accuracy nor can I be liable for any
damage one can cause to his or her car or self.
Well this replacement came to me as a surprise when I was in Seattle. My
MAF/MAS/AMM/AFM or whatever you want to call it bailed out on me when I was
over an hour from home. Fortunately I was only a 20 minute walk from the
nearest dealership. I picked up my new MAF meter for $358 +tax/core. All I had to replace
it was my stock tool kit, a parking garage, and my digital camera.
Start off by unscrewing the hose clamp (Philips screwdriver), and unlatching
the TWO latches from the air box. These are circled in the picture below.
Next, turn the grippy part of the connector Counter Clockwise and disconnect it
from the sensor. Once removed, slide the intake boot off of the MAF, and then
slide it out of the intake air-box.
Installation is reverse of removal. Be very careful with the new MAF. Also, if
you had to drive the car for very long on the old MAF, your spark plugs may
have fouled out, so it may still run bad until either the plugs get "cleaned
off" by the heat, or you may even have to replace the plugs. Good luck!
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