OMG I hate these cars!
My wife has a 2012 R60 (Countryman S) that I have been fighting with for over a year now.
When driving the car normally under light acceleration the CEL will appear. Code 2C57 (Charge pressure to low) In hot weather you can get it to do it every single time. When it's cold outside it takes much longer to make it happen, and it doesn't do it every time its driven.
Done so far:
New coils and NGK spark plugs (about a month before this issue came up)
New silicone diaphragm in the valve cover (old one was not torn, but I put a new one in anyways)
New OEM diverter valve
New OEM pressure converter
New high pressure fuel pump replaced under extended warranty
Pulled the downpipe/converter off the turbo and can visually see that the wastegate closes when putting a hand vacuum pump on the wastegate actuator. Seems to make a good seal, and there is no play or movement in the linkage from what I can tell. Decided to adjust the linkage anyway since I was already there and it's so much work to get back to that point. Set the travel distance to about 12-13mm. It was a bit more before the adjustment.
With my vacuum gauge on the actuator, I get to about 10in hg at the point the wastegate starts to hit the seat and it's super tight at 15in.
I have checked all the pipes and hose connections, even pressurized the charge pipe with about 10psi from my air compressor onto an adapter to the hose that normally comes off the turbo. I can hear the air going into the intake, but nothing else is leaking from what I can tell.
Can't wait to sell this over engineered headache!
Any other suggestions are welcome!
