Quote:
Originally Posted by CollinsE90
RED means faulty sensor, YELLOW means low pressure
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not sure about your car but i deliberatly lowered my TP to 20 on my rear passenger tire and the car dinged and threw up the red symbol a few miles later. No yellow.
For reference i have an e90 330i, which does not have TPMS in the wheels, it uses the rotation speed of the wheel compared to what it has stored when you initialize it.
Reason i lowered my TP to 20 on that tire was because it was worn way down thru the steel belting and had a noticeable bulge and i needed to get it to the tire shop to have my new tires from tire rack thrown on. Figured de-airing it might prevent it from popping, i guess the other side of the argument could be low TP can causes more rolling resistance and heat which can cause it to blowout too. Either way though i felt better when i lowered them to 20 and the big ass tumor on the tire went down.