Over Xmas, I drove to Vegas. I Drove on a road that was a good 30-40 degrees outside (I just know ) but the car showed at leat 60degrees outside. What't eh deal w/ taht? Then it'd go and later show 75 when it wasnt even 60...

So what's the deal? Where's the ext. temp sensor at? I know on my W124 it's on the front bumper undre the license plate, but what about on the 2000 W210? thanks!

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2003 E55 AMG
2007 FJ Cruiser

THe newer cars use a small black plastic sensor in the left lower section of the front bumper(plugs in). Resistance values are the same as earlier cars. ie; 68F = 3750ohm OR 32F = 9800ohm

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Check and see if it fell through (or got knocked out of) it's mount in the lower air dam. When this happens, the temp probe warms up because it's only a few inches from the radiator.

Thanks I"ll check

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2003 E55 AMG
2007 FJ Cruiser