Today, for the third time in 6 months, I got in my 22 S580, started to drive and felt it pulling slightly to the left; noticeable when I took my hands off the wheel. I checked the tire pressures and the tires themselves and everything seemed normal. In each case, I put the car in the self driving mode, allowed it to track on the road by itself for about 30 seconds, and when I turned it off, the car was no longer pulling. It would seem to indicate that the car’s pulling isn’t something mechanical with the wheels/tires, but perhaps something with the electronics and software?

My car has 6500 miles.

Has anyone experienced this? Any thoughts on this?

 

I did notice the same thing on my 21 S580.

 

Recall was released that 'may' be applicable and if not may at the very least provide direction to check for any/all software updates under warranty, see attachment.

 

Are you using lane centering outside of ACC? Seems like an obvious suspect if it's software and going into ACC clears it.

 

I’m not sure, how do you get lane centering without the ACC on?

 

It's one of your options in assistance; it can be enabled with or without ACC/cruise. Settings>>Assistance>> Avoid collision>>Lane keeping... I mentioned it as a suspect because it can give a pull and it would be reset when you go into ACC. The way you would test that is instead of switching into ACC you can turn centering off the next time it happens.