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Old 08-10-2017, 06:16 PM   #51
15SubieSC
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I just searched "2015 WRX Heater Assembly". I did call a dealer for the correct part, best they would do was $500. I think it'd be labor intensive if it really does need to come out, but not all that expensive. I am going to probably pop off the center panel and see after I take the assembly apart this weekend.
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Old 08-12-2017, 05:19 PM   #52
15SubieSC
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So I confirmed that the flaps for driver/passenger are coupled and there is good news and bad news:

Good: The modification to the heat and cooling assembly flap is very minor and easy. All you do is cut off the keyed end off the passenger side flap while leaving enough to slide inside the drivers side flap.

Bad: You will have to drain coolant and discharge freon to install. This by itself isn't too bad, I have gauges and access to a vacuum pump so I can charge it back myself. The real bad news is that the entire dash will be coming apart to install.

Even so, I am somewhat determined to do this, I am only around $300 bucks in, and theoretically you can do it cheaper if you don't get a JY heat/cooling assembly like me to play with in advance. Unless someone is willing to come help, I am probably going to wait until its cooler and install this.
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Old 08-12-2017, 07:34 PM   #53
ilarson007
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Quote:
Originally Posted by 15SubieSC View Post
So I confirmed that the flaps for driver/passenger are coupled and there is good news and bad news:

Good: The modification to the heat and cooling assembly flap is very minor and easy. All you do is cut off the keyed end off the passenger side flap while leaving enough to slide inside the drivers side flap.

Bad: You will have to drain coolant and discharge freon to install. This by itself isn't too bad, I have gauges and access to a vacuum pump so I can charge it back myself. The real bad news is that the entire dash will be coming apart to install.

Even so, I am somewhat determined to do this, I am only around $300 bucks in, and theoretically you can do it cheaper if you don't get a JY heat/cooling assembly like me to play with in advance. Unless someone is willing to come help, I am probably going to wait until its cooler and install this.
You're sure the whole thing has to be taken out to get to the flaps?
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Old 08-12-2017, 08:23 PM   #54
15SubieSC
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There is no way that there will be clearance to disassemble the heat/cool assembly without removing it from the vehicle. I had the JY one on my table and completely disassembled it to split the halves. The flaps link together to form a shaft and are captivated from moving apart by the sides of the assembly. I took some pictures, but probably not enough. There are like 10ish screws holding the halves together, some buried deep that I had a hard time finding even with it on the table.

Good news is that I have the FSM, so I have the procedure to remove the dash and all. Also, like I said earlier, the control of the motors is based in the dials, so this should be the last thing.
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Old 08-12-2017, 08:29 PM   #55
ilarson007
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Yeah. I just. At the point where the heater core has to come out, it's not worth it anymore for me. The gf can wear a sweatshirt.
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Old 08-12-2017, 08:33 PM   #56
ATMINSIDE
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Quote:
Originally Posted by ilarson007 View Post
Yeah. I just. At the point where the heater core has to come out, it's not worth it anymore for me. The gf can wear a sweatshirt.
Same! I've bought her a nice one... Lol!
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Old 08-12-2017, 08:35 PM   #57
ilarson007
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Originally Posted by ATMINSIDE View Post
Same! I've bought her a nice one... Lol!
Lol. I have a bunch of em.

I'm kind of biding my time to see if the next gen STI has an FA engine anyways.... I *might* trade mine in on one if so.
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Old 08-12-2017, 08:36 PM   #58
15SubieSC
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yea, this has become a do it to see if it can be done thing for me now . I dont know that I would recommend this to anyone. I spend my free time reading the FSM so...
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Old 08-12-2017, 08:58 PM   #59
ilarson007
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Originally Posted by 15SubieSC View Post
yea, this has become a do it to see if it can be done thing for me now . I dont know that I would recommend this to anyone. I spend my free time reading the FSM so...
Do you just have the PDF copy of the 15 MY? I have been trying to find a PDF copy for 17 MY. I would pay for it.
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Old 08-12-2017, 09:02 PM   #60
15SubieSC
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sorry man, only '15.
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Old 08-12-2017, 09:08 PM   #61
15SubieSC
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there is always alldata though if you are in a bind. Not quite as extensive, but still good.
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Old 08-21-2017, 12:30 AM   #62
pat93
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I have a 2017 WRX Limited and I can confirm my heater core looks like what 15SubieSC is describing with the blank spot for the actuator and the brown/tan nub coming out for the driver side controls. I also found a 6-pin connector on a harness near where the driver side actuator would go (there isn't one currently), is this the one you used 15SubieSC? I have a STi dual climate controls not currently installed and i'm in for modifying the flaps if it is confirmed to be working.
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Old 08-21-2017, 04:01 PM   #63
15SubieSC
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Quote:
Originally Posted by pat93 View Post
I have a 2017 WRX Limited and I can confirm my heater core looks like what 15SubieSC is describing with the blank spot for the actuator and the brown/tan nub coming out for the driver side controls. I also found a 6-pin connector on a harness near where the driver side actuator would go (there isn't one currently), is this the one you used 15SubieSC? I have a STi dual climate controls not currently installed and i'm in for modifying the flaps if it is confirmed to be working.
I've plugged the motor in to verify its operation.

I also ordered the flaps and the one you need is 72162YC040. The 72162YC050 has a keyed side (you can actually see it earlier in the thread, it is the right side of the green flap). You can also just cut the keyed end off (thats essentially what subaru did). What you need to do though is take the heat/cooling assembly out from behind the dash and disassemble it. Im still planning on doing it, but its currently 90+ everyday and I am going to wait for it to cool down.

Also to note, I think it may be possible to get this out without discharging/recovering AC but have not confirmed, but you will have to drain coolant as the heater core has to come out of the assembly.
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