[yayaya]

2011 bmw 335xi

Getting some DME codes 2C58 charging pressure control 2C583 pressure too high 2C71 boost charging sensor

[Emilime75]

Failing diverter valve/s? Just a wild guess.

[vespa]

It's your valve cover. Coast in neutral, tap the gas and then slam on the brakes while turning left to really make it squeal. See here: http://www.e90post.com/forums/showthread.php?t=1197637

[yayaya]

Originally Posted by vespa

It's your valve cover. Coast in neutral, tap the gas and then slam on the brakes while turning left to really make it squeal. See here: http://www.e90post.com/forums/showthread.php?t=1197637

So I need a new valve cover? Any idea what that would run at mechanic?

[Kage893]

Does it make the same noise off throttle and coming to a stop? Had it happen around 38k miles and turned out to be the crankshaft seal.

[yayaya]

Originally Posted by Kage893

Does it make the same noise off throttle and coming to a stop? Had it happen around 38k miles and turned out to be the crankshaft seal.

Yeah can’t hear it under throttle or coasting rally just coming to a stop.

[Kage893]

Are you running JB4 as well? Had similar issues 20k miles after, but it went away when I uninstalled it.

[JUMAS]

Originally Posted by yayaya

So I need a new valve cover? Any idea what that would run at mechanic?

you need a valve cover because it is your PCV valve that is bad. It is built into the valve cover and not serviceable.

There's a thread about the "PCV valve of doom" on the n55, read it, follow the steps, test your PCV. Order the parts, replace them and solve your issue.

[yayaya]

Originally Posted by Kage893

Are you running JB4 as well? Had similar issues 20k miles after, but it went away when I uninstalled it.

Had MHD but currently flashed stock right now.