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over heating problem
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  1. E34 M5 Discussion
    :confused:Hi there, I need help! The water pump on my 91 M5 (S38) went out and started loosing coolant from the weep hole on the pump. I replaced the water pump and now the temp gage goes to red within 5 minutes (driving or idling). I figured the thermostat might have gone bad, so I replaced it...
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