2007 530XI surge when in reverse?
#1
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Sometimes when I start my car the first thing in the morning, and place it into reverse the engine will surge by about 500 RPM. It will go vroom..vroom..vroom.. about 10 times. Since I am backing up, I am not hitting the gas. I am holding my brake in and using the idle to propel my car (it's an auto). Since the car is surging, sometimes it is crazy to control. My dealer told me to start the car and let it sit 2 minutes before I drive. It seems like it happens most during a cool day between 40-60f degrees out. Has anyone else had this problem? It happens at random times and my dealer can't get it to do it when I drop it off.
Thanks.
Thanks.
#2
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Originally Posted by shopkins94' post='757805' date='Jan 2 2009, 01:33 PM
Sometimes when I start my car the first thing in the morning, and place it into reverse the engine will surge by about 500 RPM. It will go vroom..vroom..vroom.. about 10 times. Since I am backing up, I am not hitting the gas. I am holding my brake in and using the idle to propel my car (it's an auto). Since the car is surging, sometimes it is crazy to control. My dealer told me to start the car and let it sit 2 minutes before I drive. It seems like it happens most during a cool day between 40-60f degrees out. Has anyone else had this problem? It happens at random times and my dealer can't get it to do it when I drop it off.
Thanks.
Thanks.
My initial diagnosis is a problem in the cold-start system. To properly diagnose the dealer may need to test at the timeof a cold start!
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