Front Heated Seat Switch Retrofit

Stresspuppy · 04-17-2015, 09:14 AM

My 2011 335d has aftermarket seat heaters with the switch on the front corner of the lower seat trim (that goes around the controls and wraps to the front). I am forever hitting that and turning it on. I would like to purchase the panel with heated seat switches and then wire into that. Has anyone done this? Easy/hard? Obviously I'll need to run wires forward but I need to figure out the wiring pin outs and then come up with a connector to tap into the switches.

Just looking to do a few small retrofits to add a little convenience that didn't come with the car originally (see question about rear seat power outlets).

Thanks.

turo · 04-19-2015, 12:23 AM

Here's a TTT for you since I'm researching the same thing. Can I ask what brand heaters you went with and how you like them?

Stresspuppy · 04-19-2015, 06:12 PM

Previous owner had them put in so not sure but PO is actually a neighbor so I'll see if I can find out the brand.

What brand do you have? Have you come across any info at all on this? We may have to do a DIY ourselves. Shouldn't be too hard but pulling things apart to try to figure out out on my DD makes it tougher so getting info from someone else would help cut the time things are apart.

turo · 04-19-2015, 07:21 PM

I don't have any yet, I've been thinking of getting a universal kit such as this (http://www.autowarm.com/products.php) and wiring it up to make it work. My aim is to do it sometime this summer, so I have them for next winter.

I hear ya on the DD thing, that's always a big limiting factor.

Ali-E90 · 04-20-2015, 12:13 AM

Interested also. Currently don't have seat heaters, but with our Canadian winters being so harsh, I'm sure it would make a great investment.

Stresspuppy · 04-20-2015, 10:29 PM

Well looks like I need to get a switch and see if I can figure it out. I need to determine if the harness part is already there that this would plug in to or if I'll need to get power from somewhere. Then figure out the pin out for the plug.

Oh, and find the time to do it! 😀

If anyone has any info related to the pins please let me know.

Stresspuppy · 04-30-2015, 07:15 PM

Ok, I got the panel with switches for the heated seats. My next task is to figure out the pin outs. Does anyone know where I can get a good wire diagram or pin out list for this switch? I'm searching but not having any luck yet.

04-17-2015, 09:14 AM	#1
Stresspuppy Private First Class 19 Rep 109 Posts Drives: 2011 335d Join Date: Dec 2014 Location: Richmond VA iTrader: (1)	Front Heated Seat Switch Retrofit My 2011 335d has aftermarket seat heaters with the switch on the front corner of the lower seat trim (that goes around the controls and wraps to the front). I am forever hitting that and turning it on. I would like to purchase the panel with heated seat switches and then wire into that. Has anyone done this? Easy/hard? Obviously I'll need to run wires forward but I need to figure out the wiring pin outs and then come up with a connector to tap into the switches. Just looking to do a few small retrofits to add a little convenience that didn't come with the car originally (see question about rear seat power outlets). Thanks.
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04-19-2015, 12:23 AM	#2
turo Lieutenant 218 Rep 492 Posts Drives: Yes Join Date: Jul 2011 Location: North VA iTrader: (2) Garage List 2011 BMW 335i [8.40] 2024 BMW M2 [9.00] 2018 BMW 340i XDrive [10.00]	Here's a TTT for you since I'm researching the same thing. Can I ask what brand heaters you went with and how you like them?
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04-19-2015, 06:12 PM	#3
Stresspuppy Private First Class 19 Rep 109 Posts Drives: 2011 335d Join Date: Dec 2014 Location: Richmond VA iTrader: (1)	Previous owner had them put in so not sure but PO is actually a neighbor so I'll see if I can find out the brand. What brand do you have? Have you come across any info at all on this? We may have to do a DIY ourselves. Shouldn't be too hard but pulling things apart to try to figure out out on my DD makes it tougher so getting info from someone else would help cut the time things are apart.
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04-19-2015, 07:21 PM	#4
turo Lieutenant 218 Rep 492 Posts Drives: Yes Join Date: Jul 2011 Location: North VA iTrader: (2) Garage List 2011 BMW 335i [8.40] 2024 BMW M2 [9.00] 2018 BMW 340i XDrive [10.00]	I don't have any yet, I've been thinking of getting a universal kit such as this (http://www.autowarm.com/products.php) and wiring it up to make it work. My aim is to do it sometime this summer, so I have them for next winter. I hear ya on the DD thing, that's always a big limiting factor.
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04-20-2015, 12:13 AM	#5
Ali-E90 Colonel 386 Rep 2,375 Posts Drives: 2007 E90 323i (Cdn) Join Date: May 2013 Location: Toronto, Canada iTrader: (3) Garage List 2008 BMW M3 [8.00] 2007 BMW 323i [8.50]	Interested also. Currently don't have seat heaters, but with our Canadian winters being so harsh, I'm sure it would make a great investment. __________________ Check out my Mod Thread Here
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04-20-2015, 10:29 PM	#6
Stresspuppy Private First Class 19 Rep 109 Posts Drives: 2011 335d Join Date: Dec 2014 Location: Richmond VA iTrader: (1)	Well looks like I need to get a switch and see if I can figure it out. I need to determine if the harness part is already there that this would plug in to or if I'll need to get power from somewhere. Then figure out the pin out for the plug. Oh, and find the time to do it! 😀 If anyone has any info related to the pins please let me know.
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04-30-2015, 07:15 PM	#7
Stresspuppy Private First Class 19 Rep 109 Posts Drives: 2011 335d Join Date: Dec 2014 Location: Richmond VA iTrader: (1)	Ok, I got the panel with switches for the heated seats. My next task is to figure out the pin outs. Does anyone know where I can get a good wire diagram or pin out list for this switch? I'm searching but not having any luck yet.
	Appreciate 0 Quote