Originally Posted by jhy311

the SES was not flashing. I used Actron CP9135 to read the codes, and it only gave those two numbers. I earsed them immediately after I wrote them down.

yesterday the weather was cold, about 35F degree , so I guess that is why the car has problem on starting. I think even I did not earse the codes, the rough/low idle speed problem would still happen.

anyway, yesterday I drove the car for about 10 minutes local road, and then tried to restarted it . The rough idle speed no longer occured, at least not noticable. I guess the cold weather caused the idle speed problem. I know the problem is still there, but I think I can drive the car for several days until the error codes show up again. Then I will bring my x5 to stealer.

I appreciate you guys inputs. I DIY some on my previous maxima. I own this 03 X5 for about 6 months, current meter reads 52k miles. I'd better let the stealer fix the problem this time.

Hey, Mike ( Noncom23), glad to see u here, which stealer you think is better, Classic BMW or BMW of Dallas?