So recently, I got the temperature map cooling open/short fault on my e53. I only recently replaced the thermostat a little over a year ago. Upon inspection, I did see the connector had some slight greenish tint on the pin... UGH!

I cannot find ANYWHERE listing what the heater element resistance is suppose to be. When probing mine, I'm getting about 5.1 ohms at about 70F ambient temperature.

Does anyone know what nominal resistance readings of the thermostat heater is suppose to be??

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2003 BMW X5 3.0i -- MT5, 3.64s final gears, H&R lowering springs, K-Mac bushing kit
2007 BMW X3 3.0Si -- MT6