My '99 528it thermometer is stuck on -40 and con-currently the AC will not blow cold. The heater works fine. Any ideas? Thank god it is only 70 out!
Your outside temp sensor is missing or damaged. Look under the right front corner of the car. It looks like this.......
http://www.realoem.com/bmw/showparts...=65&fg=70&hl=2
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