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Auxiliary fan relay

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Old 07-20-2013, 10:58 AM
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Default Auxiliary fan relay

Simple question:
From 3/2007 there is relay for cooler fan (from 2003 - 2/2007 there is no).
but: where is it?
I have WDS, but for some reason there is no picture about where it is installed.
If anybody have newer WDS (mine is from 2008) can You look eg E60 530d 2009 if there is a relay and where it is.

EDIT: Answer found, I assume.

Last edited by donpb; 08-05-2023 at 09:51 PM. Reason: Fixed title.
Old 08-05-2023, 03:01 PM
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Default Relay for e60

Originally Posted by jaki
Simple question:
From 3/2007 there is relay for cooler fan (from 2003 - 2/2007 there is no).
but: where is it?
I have WDS, but for some reason there is no picture about where it is installed.
If anybody have newer WDS (mine is from 2008) can You look eg E60 530d 2009 if there is a relay and where it is.

EDIT: Answer found, I assume.
you answered a lot just in your message. I have an e60 built in 7/06 looking everywhere for the relay. After reading your message I can finally stop looking. But from my gatherings, it could be ( behind the fuse box in the trunk, beside the fuse box in the right side trunk, could be on the right front frame rail, then after that, it could be anywhere.) but the 30 amp one I bought and wanted to replace the only known locations even on x5 was front left framerail or nose side of rear fuse panel. But I've searched every single place looking on mine then read your message saying " 03/07 is when they started the relays.. I'm done.. going to toggle switch, because I'm over traffic overheat in Boston. It works fine from jump st. But when I get to highway speed the fan will shut off, then won't restart. Sounds like a relay over heat to me!!!! But I cNt locate one.. toggle 2 speed it will be.. I even installed 2 10inch fans ( blowing into motor) and it helps overheat, but the fan won't turn on till 245 degrees.. that's way to f-ing high... if it turns on at all before blowing something. All while a/c is on.. but I need a/c, and I need to maintain engine te.p in long traffic working in Boston.
Old 08-05-2023, 09:02 PM
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twh
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The radiator fan isn't just on/off. It is controlled by a signal that tells it how fast to run. The guy in the 2013 post has a European diesel and that may be different.

There is a cutoff relay...I think this is it for your build K9137:
Old 08-05-2023, 09:17 PM
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You have another issue if it only does something at 245. Thermo opens way earlier than that and the pump is supposed to be pumping. While you drive, the coolant is being cooled by the wind. I can understand if it was over heating at idle but while you're moving it's not only a fan issue.

Last edited by donpb; 08-05-2023 at 09:53 PM.
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