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Electrical Thermostat housing replacement wiring question

Electrical Thermostat housing replacement wiring question

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Old 04-28-2018, 08:25 PM
Etmil35
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Thermostat housing replacement wiring question

Iím in the process of replacing the thermostat//housing on my 2011 Mini Cooper Countryman All4 S. My car came with the older housing type with just one plug. I had to order the coolant thermostat adapter lead Part Number12518611289This is a two wire setup. The new thermostat has one sensor on the top front and one towards the back on the lower side. Anyone know which of the two wires go to which sensor? They are the exact same plug and came with no directions.
 
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Old 05-02-2018, 07:02 AM
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I dont think they are interchangeable. I believe the longer one goes to the temp sensor.
 
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Old 05-02-2018, 07:29 AM
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Originally Posted by MiniToBe View Post
I dont think they are interchangeable. I believe the longer one goes to the temp sensor.
You are correct. For anyone with a question on this in the future, these plugs have a small fin on them that is unique to each plug that ensures you canít plug the wrong one into the wrong sensor.
 
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Old 05-02-2018, 07:57 AM
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On my 2012, there was a 4-pin plug for the stat housing and a 4-pin for the map sensor and yes you can get this swapped. It results in more MIL codes, 100,102.
 
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Old 05-02-2018, 08:33 AM
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Originally Posted by contrail View Post
On my 2012, there was a 4-pin plug for the stat housing and a 4-pin for the map sensor and yes you can get this swapped. It results in more MIL codes, 100,102.
For some you may be able to swap them. For the models that require the coolant adapter lead because of the Tstat housing change, they arenít interchangeable.
 
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Old 05-06-2018, 04:02 AM
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Originally Posted by Etmil35 View Post
Iím in the process of replacing the thermostat//housing on my 2011 Mini Cooper Countryman All4 S. My car came with the older housing type with just one plug. I had to order the coolant thermostat adapter lead Part Number12518611289This is a two wire setup. The new thermostat has one sensor on the top front and one towards the back on the lower side. Anyone know which of the two wires go to which sensor? They are the exact same plug and came with no directions.


I also own a 2011 and notice there is very little heat during the winter season, can I ask why you actually replace your original unit, will you be doing the installation yourself.
Should I be replacing my unit with the part number you included, I read previously that you had to order a separate cable .. please confirm and include the part number of the cable.
Thanks
 
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Old 10-07-2018, 01:17 PM
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With the new thermostat housing PN 11537647751 the 2 x 2pin connecters from adapter PN 12518611289 all electrical connections are accommodated for the thermostat.
On my old Thermostat setup (2012 Countryman ALL 4) there is an 45 Degree aluminum fitting in the large hose to the radiator that has a connector in it.
Do I just leave this connection open with the new setup?
Thank you
Bob
 
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Old 10-07-2018, 02:29 PM
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I just did my ‘12 R60 about a week ago. I don’t recall that part right now, but I will look in about an hour when I get back home and try to see what aluminum piece you mean. Can you post a photo of it?
 
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Old 10-08-2018, 06:16 AM
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Originally Posted by uspowers View Post
With the new thermostat housing PN 11537647751 the 2 x 2pin connecters from adapter PN 12518611289 all electrical connections are accommodated for the thermostat.
On my old Thermostat setup (2012 Countryman ALL 4) there is an 45 Degree aluminum fitting in the large hose to the radiator that has a connector in it.
Do I just leave this connection open with the new setup?
Thank you
Bob
I remember seeing a setup like that...I guess was exploring the many options to place the thermo sensor...At any rate, I would replace the whole hose to avoid point of failure. leaving it as is with the sensor not wired is ok too as long as everything is coming out the thermostat housing.
 
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Old 10-08-2018, 01:25 PM
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Here's a photo.

I'll abandon it for now and replace the hose next time I work on the cooling system.
Thanks
Bob
 
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Old 10-08-2018, 01:27 PM
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Old 10-08-2018, 02:46 PM
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Oh...well no wonder I didn’t remember it. My 2012 R60 does not have that metal part there at all. It’s just a curved hose there with no electrical plug there that I can see. Weird.
 
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Old 10-10-2018, 02:30 PM
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Yours must be a late year 2012 and mine early.
Bob
 
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Old 10-10-2018, 03:55 PM
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Actually the build date is 01/2012, lol. So who knows. It appears that there were several revisions throughout production to several different parts. I recently did a turbo upgrade on another 2012, and found several small differences in part design and placement. Not with the turbo, but especially with some of the plastic parts
 
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