Quote:
Woolly - 4/27/2005 5:56 AM
It's not actually a sensor as such - the ABS and traction control sensors monitor the rpm of each wheel - this combined with the steering angle sensor allows the system to decide if one wheel has got reduced pressure - i.e. the circumference is less so rpm goes up - then informs you your pressure is reduced, therefore ALL slk's must have it built into the firmwhere - I'm just not sure where it informs you - in one of the didgy displys, seperate warning light or on the COMAND screen - I think STAR Diagnosis could activate it on all our cars.
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Ahh... I seen something on this a couple of days ago ... I now remember where ... "Fifth Gear" - 4/19/2004 - Just happens to be the episode with a review of the SLK!
After the Firestone problems in the US, they (the great US of A) legislated (THE TREAD LAW) that all new vehicles have to have either a pressure gauge or a low pressure alert. So, from the quote above, that would cover the low pressure alert, but I believe that to get the actual tyre pressure, there has to be a pressure gauge inside the rim, that transmits the reading to the car.