Quote:
Originally Posted by mainbearing
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Indirect isn't as good. I have the indirect system on my GTI and Fiata, and it is not sensitive enough to show a gradual loss of pressure in all four wheels due to temperature changes - both of my cars were WAAY low at the beginning of winter (taught me to check more often). And of course, it can't display the actual pressure in each tire - though I am not sure if any e9x's can do that. I don't have iDrive so my car can't- but my F22 could show pressure and temperature for each tire.
Of course, indirect is cheaper. But the original sensors in my car are still working fine after 9 years.
