The radiator fan on my 124 runs constantly. I was wondering if this was just a difference between and X and a 124, but I think I found the source of this issue. I had noticed this nice clean section of white wiring, but hadn't really looked into its purpose. It looked suspicious though. :brow:
I looked at the white wire closely today and noticed that it is acting a a jumper for two old wires. You can see that someone has zip tied the old wires to opposite sides of the coolant overflow hose, then this white "Y" wire is connecting the two. The blue connector on the end isn't connected to anything. If I disconnect one side the fan no longer runs.
So I looked over the rad and found that there is a fan switch in the bottom similar to the X. See it down there by the petcock? I am betting the two old wires being jumped are supposed to be hooked to the unused leads on that switch.
So I am guessing the switch is bad and this wiring was easier than replacing the switch. I have had the car idling for long periods without it overheating, so hopefully everything is fine other than the switch.
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I looked at the white wire closely today and noticed that it is acting a a jumper for two old wires. You can see that someone has zip tied the old wires to opposite sides of the coolant overflow hose, then this white "Y" wire is connecting the two. The blue connector on the end isn't connected to anything. If I disconnect one side the fan no longer runs.
So I looked over the rad and found that there is a fan switch in the bottom similar to the X. See it down there by the petcock? I am betting the two old wires being jumped are supposed to be hooked to the unused leads on that switch.
So I am guessing the switch is bad and this wiring was easier than replacing the switch. I have had the car idling for long periods without it overheating, so hopefully everything is fine other than the switch.
Add another task to the list.