Yaemish

My mother's 2011 E350 with 60k miles is only firing on 3 cylinders. I understand that the balance shaft issue was resolved ~2008 so I am hoping that it is not that. I believe that the engine started revving high and lost power. I pulled the codes and was just wondering where to start. Thank you

P0305 Powertrain - cylinder 5 misfire
P0306 Powertrain - cylinder 6 misfire
P0304 Powertrain - cylinder 4 misfire
P0348 Powertrain - camshaft position sensor "A" Circuit Range/Performance (Bank 2)
P0393 Powertrain - camshaft position sensor "B" Circuit Range/Performance (Bank 2)
P2092 Powertrain - camshaft position actuator control circuit low (bank2 b)
P2094 Powertrain - camshaft position actuator control circuit low (bank2 c)

b20guy

I would check for oil in the harness at the left bank (driver side) magnets and position sensors first,
also check the part number of the magnets, I think 00 77 is the older pn. You want 01 77.
someone correct me if I’m wrong. Might want to check the harness for abrasions, chafes etc while you’re at it.

Yaemish

Thank you, I'll start there. Am I correct about the years and the balance shaft being less of a problem?

kjb55

Yes. M272 Balance Shaft issue ended with 2006 models and the very rare, early 2007s instances.