[dfellores]

About a week ago my 550i GT starting hesitating upon acceleration, especially between 30-50 mph. A few days ago, it was bad and the Engine Malfunction warning came on as well as the check engine light. The car was driving very badly after that, but when I went to restart it, the CE light and EM warning was gone. The car still has some hesitation and it seems to have lost a little power. I'm driving it more carefully now because I don't want it to break down or get stranded. Anyone have any suggestion that I can try before bringing it in for service. No warranty, so it'll be out of pocket.

[TheBlackGT]

While I cannot say completely - it could be your plugs, coils, or 02 Sensors going out.

[ezaircon4jc]

Originally Posted by TheBlackGT

While I cannot say completely - it could be your plugs, coils, or 02 Sensors going out.

All of which say DON'T DRIVE IT unless you don't mind replacing your catalytic converter(s) as well as the offending part.

[dfellores]

Is there a good code scanner that will read stored codes?

[Zer0Cool92]

Originally Posted by dfellores

About a week ago my 550i GT starting hesitating upon acceleration, especially between 30-50 mph. A few days ago, it was bad and the Engine Malfunction warning came on as well as the check engine light. The car was driving very badly after that, but when I went to restart it, the CE light and EM warning was gone. The car still has some hesitation and it seems to have lost a little power. I'm driving it more carefully now because I don't want it to break down or get stranded. Anyone have any suggestion that I can try before bringing it in for service. No warranty, so it'll be out of pocket.

Have you done the CCP?

Also, I have a 2011 550i and there's a recall on the Fuel pump. Got mine replaced and the car was significantly faster. I had to email BMW of NA and they eventually sent me a letter.

But first, call your dealer and give them the vin and let them check for any recalls before emailing BMW of North America

Give it a try.

[dfellores]

Thanks Zer0Cool92, I will call the dealer. I just found the Crank Case Ventilation bulletin about the possible cause of high oil consumption and rough idling. I need to ask them about that as well. Have you noticed any huge amounts of oil consumption? I'm adding a quart about every week now and this CCV bulletin seems to address all of the issues I'm having including consumption, rough running and blue smoke from the exhaust.

https://blog.bavauto.com/16906/bmw-v...1-f02-b001314/