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  1. E39 M5 and E52 Z8 Discussion
    As the weather has started getting colder, and I've been using the heat more I've noticed an odd behavior with my climate control. When it is cold outside I always keep my climate control set to 70F and on the several other E39s I've owned it will initially blow hot air out of the lower/foot...
  2. E63/E64 M6 Discussion
    Hi! Has anyone had a similar problem?? Any ideas what is wrong? IHKA: 9C79 water valve left 9C7A water valve right Ista-D diagnostic program tells: "The left water valve is ativated and operates cyclically at 20% ON&OFF Is the water valve clocked cyclically?" Changed new water valve...
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