Thread: Help please,HFS 4 V3 wiring diagram for E63 AMG
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Old 16-03-2016, 01:13 PM
Maktech Maktech is offline
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Join Date: Mar 2016
Location: Istanbul
Posts: 35
Default Re: Help please,HFS 4 V3 wiring diagram for E63 AMG
I've unplugged the grey harness , the pump stopped but the system is off , too. There is no lamp on the controller unit and on the gauge.

Have I unpluged the right harness , see the photo please ?

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