2010 ml350 4matic camshaft position sensor

I would second everything said here.. I did it and started wishing I had not started an hour into it. I have scratches up and down my arm and wasn't smart enough to put a blanket down till I almost passed out. I had a HUGE fear of dropping that screw into the engine or loosing it. I ended up taping the screw to the socket with electrical tape putting it back in. 7 out of 10 is generous. You cannot see anything and there is a heat shields around it. 1/4 extension is all that will fit. Good news is that the sensor on Amazon was $36 (Bosh) and the exact unit, part number and all that the dealership sells for $200. Now that I have done it, I could do it in an hour. My first time took me over 4 hours and a ton of second guessing what I had attempted. If you can afford it, have the dealership do it. It you can't, prepare for a tough job.

I have heard that the V6 is easier than the V8.. I have also heard you can do it from the drivers wheel well when you remove the liner and heat shield.. I tried and was not possible for me...