Check Engine light.......
If your car has more than 100K, then they will probably tell you that you need a new replacement electronic harness, that costs $ 1,800 plus the above too.
So, your looking between $1,000 and $3,000.
although my car is a C220 though so it may not apply to yours.
Order the part online for about $250 and install yourself. Dealer usually charges around $650 to replace it.
Air Mass Sensor.........parts and labor........$560
Not as bad as I thought it would be.


