Can ABS Sensor trigger Tyre Pressure Warning

[RobC]

Hi Guys
I need some technical advice. For the last couple of years I've had intermittent tyre pressure warnings. The tyre pressure always checks out. Additionally I get intermittent SELF LEVEL SUSP INACT warnings. My 2004 X5 has been to the techies more times than I can remember and each time they say they can't find a problem and nothing is recorded in the logs. My X went out of warranty 3 months ago. I had 4 new tyres fitted at the dealer a week ago and the very next day I get all 4 warning lights, ABS, Tyre Pressure, 4x4 DCS and Break warning light up. Back to the dealer and they tell me I have a failed rear right wheel speed sensor (ABS sensor). So my question is.... could this have been sending duff info on and off over the last 2 years causing the tyre pressure light to come on and now it's finally failed? Dealer says he doesn't reckon and I have to pay for a new sensor fitting... Oh and could they have caused the problem when they fitted the new tyres?
Thanks
RobC

[X5 Meister]

Do you have the suspension leveling switch that is located to the left of the steering wheel (in USA cars). If you do have it, then you have 2 axle leveling suspension and not single axle leveling suspension (someone correct me on this if I'm wrong). There was an issue with the FTM (technically it's an FTM / RPA - Flat Tire Monitor and not a TPM/RDC - Tire Pressure Monitor) and one axle self leveling cars in the past that I know of, but in your case I would guess it's the ABS sensor. Changing tires has nothing to do with it as it's an indirect pressure monitoring system. The FTM system was implemented from 4/2004 onwards.

reference post #16
http://www.xoutpost.com/bmw-sav-foru...monitor-2.html