2008 bmw 535xi

:runaround:my tire monitor pressure light comes on and stays on i,ve tride to reset it no luck

If the tire pressure in any of your tires is below 25%, the warning light stays on. Check the pressure in all your tires and see if the problem persists. Hope that helps.

thanks for the tip no change went to a auto shop i was told their computer was not communcating with the car

They said that their computer wasn't communicating with your car or that your car computer wasn't communicating with your car?...Just wanted to clarify...cos if your computer isn't communicating with your car then you may have to replace it. Try getting a second opinion from another shop if possible. Good luck!