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heater core

  1. E60 M5 and E61 M5 Touring Discussion
    I've had my 08 e60 for a little over a year now, and this fall I noticed the passenger floor mat was slightly damp up against the console. Upon closer inspection I realized that it's coolant dripping down very slowly from (I presume?) the heater core above. It's a slow leak as the level in the...