I have a 2006 M5 S85 SMG with this same problem. Now at dealership after a flatbed truck ride yesterday. From my BlueDriver App I retrieved the following:I have a 2009 m6 S85 exact same problem except its on bank one. was driving along on the freeway car started to miss then the cel light came on checked fault codes had misfire faults for all cylinders on bank one. have replaced ionic control module, spark plugs coils and air flow meters so far. not trying to hijack the post just seems we have the same problem.
Attachment is from the dealer diagnostics. I'm guessing this means low fuel pressure?Remove plugs and boroscope cylinder walls.
Remove injectors from throttle bodies, lay them in a towel and turn ignition on to check for one stuck open.
No other codes at all? None for fuel pressure?
Would a stuck injector cease the engine? The dealership just called again and said the tech is checking the plugs but wanted to know what I wanted him to do after that. I smelled a burning electrical smell when I first got out of the car so it makes sense to me to first locate the burned up device/part. I'm kind of getting the feeling that they're really wanting to just put a new engine in it. :frownI'm willing to bet you have a stuck injector.
I met with the Tech and SA this morning. All the did was to remove/inspect the oil filter and take oil sample from filter housing. They didn't get around to pulling the plugs but they did try to turn the engine without pulling the plugs and said it would not turn.If they can't turn the motor over, it is hydro locked. Or seized. Possibly a bent rod, hopefully not
The #10 cylinder fuel injector is, in fact, stuck open. All others remain sealed as the rails are pressurized. I just can't figure out how the bank 2 throttle bodies 9, 8, 6 filled with fuel given only cylinder 10 injector is stuck open. Obviously with #7 intake valves open the fuel went into the #7 cylinder.
Pulled the fan & housing to gain access to main crankshaft pulley. Put a 32MM socket with a long extension and a pipe onto it an cannot get the engine to move in either direction.
Not sure yet if when starter engaged for last time during failed start if it might be jammed into the flywheel or something else.
Does anyone else have any experience with a direction to head now? Looks like starter bolts have to come out from flywheel housing side - not from the top rear of the engine inside the engine compartment. :frown
Incredible information! Thank you for the share. :smileI linked my experience above. I was very careful how I proceeded and did not take any chances the bottom end was damaged. My starter clutch failed on mine as well, not discovered until done rebuilding.