Heated seats retrofit (now complete)

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Manufactured from 2004 to 2013

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bjt
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Heated seats retrofit (now complete)

Post by bjt » Mon Apr 10, 2017 11:10 am

Currently have the cloth/Sensatec seats which are perfectly fine but fancied an upgrade.
Found a complete heated leather interior in good nick from a 2011 car.

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If you buy a set of heated seats make sure they come with the heating modules installed (black box below)
Part number is 61356926435 for manual seats.

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The control buttons are also needed. I have front PDC so I needed one with the PDC and heating buttons, part number 61316962591.

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Later cars (2011 onwards) have the heating buttons integrated to the climate panel.

The final part of the puzzle is the wiring to the seat heating module. There is an official retrofit kit which comes with a wiring kit but I don't know if the wiring is available separately. In any case it doesn't look too difficult to make up a loom to each seat (click for bigger)

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For each seat there's a new ground, two power wires to the fuse box and one to the junction box for the heating signal. Further investigation needed to determine the pin part numbers etc.

There's also this official retrofit PDF which may have some useful information, although it's for pre FL cars and some of the pin numbers are different.
https://drive.google.com/open?id=0BwPLt ... FZadjU0Um8

Coding wise is should be as simple as adding $494 to VO. Not sure which modules will be needed to reset to defaults yet.
Last edited by bjt on Wed Jun 14, 2017 3:44 pm, edited 2 times in total.
E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Mon Apr 10, 2017 1:37 pm

Found a part breakdown of the official retrofit kit. The bits I need are as follows...

61 12 0 398 203 Retrofit cable set, heated seat 1
61 13 8 364 566 Connector, double 2
Last edited by bjt on Tue Apr 11, 2017 9:23 am, edited 1 time in total.
E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Tue Apr 11, 2017 9:14 am

That retrofit wiring set is a bit more than I was hoping (£80). It includes the underseat looms (from seat connector to heating module) as well as the seat to JBBF looms. If you get a complete set of heated seats you won't need the underseat looms.

Here's the part list to make up the seat to JBBF looms:

4x 61 13 8 364 844 Socket contact ELO-Power 5,2x0,63 (Seat connectors X275 & X279)
4x 61 13 1 383 776 Jack MQS (Seat connectors X275 & X279)
2x 61 13 1 388 431 Cable terminal (Grounds X490 & X173)
2x 61 13 0 005 197 Bushing contact (JBBF connector X14270)
2x 61 13 0 007 438 Double leaf spring contact (Fuse holders X11008 & X11001)
1x 61 13 1 378 906 Double leaf spring contact (Fuse holder X11001)

All the fuses are the "mini" type. Fuse locations may vary, this info is valid for a facelift 130i with manual seats.
Last edited by bjt on Tue May 23, 2017 11:00 pm, edited 1 time in total.
E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Wed Apr 12, 2017 9:29 pm

Installed the new button module. Straightforward swap, plugs into the back of the climate panel. Heated buttons don't do anything yet, coding presumably required.

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E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Thu May 04, 2017 9:57 am

Slow but steady progress on this one... got the passenger side seat in last night.
Had to transfer the buckle/pretensioner from my old seat as the new ones didn't come with them, fairly straightforward.
Interestingly the new seats (from a 2011 car) don't have the spring mechanism on back/forward movement that the old ones do.
Other than that it was a straight swap, disconnected the battery to avoid the SRS light being triggered.
Will put the driver's side in too then look at wiring up the heating elements.

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E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Mon May 08, 2017 10:39 am

Both front seats in now. Spent some time making up the looms. Still not sure whether to try to add the new fuse connectors into the back of the fuse box or use the good old piggyback fuses. It looks like a nightmare to get to the back of the fuse box!

EDIT: Found some instructions here. Maybe it's not too bad. I already have a few piggyback fuses (dashcam, amplifier) and I don't really want to add any more, especially not for an OEM retrofit.

https://www.newtis.info/tisv2/a/en/e87- ... ts/Obqgt5i

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E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

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sp33dy
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Re: Heated seats retrofit in progress

Post by sp33dy » Mon May 08, 2017 10:20 pm

bjt wrote:
Mon May 08, 2017 10:39 am

EDIT: Found some instructions here. Maybe it's not too bad. I already have a few piggyback fuses (dashcam, amplifier) and I don't really want to add any more, especially not for an OEM retrofit.

https://www.newtis.info/tisv2/a/en/e87- ... ts/Obqgt5i
Nice find that TIS site, just been reading the seats section, and it seems to say "must use new fixing bolts" to put them back in ????
2010 - E87 120d M Sport Space Grey.

Mods - OEM Xenon's, LED Rear Darkline's, Light Washers, Front PDC, CruiseCon, USB, Front Hi-Fi Mids & Tweeters, Paddle Shift Wheel, Diamond Vision 5000K H8's, Dash Storage Tray, 208M Alloys, BMW Aero Spoiler.

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Tue May 09, 2017 9:58 am

sp33dy wrote:
Mon May 08, 2017 10:20 pm
Nice find that TIS site, just been reading the seats section, and it seems to say "must use new fixing bolts" to put them back in ????
Hmm, yeah I see that too. I reused mine, I don't think they are stretch bolts but they look to have had some kind of threadlock on them.
I guess as a safety-critical part they are extra cautious. Think it will be fine to keep an eye out for them loosening or you could put more threadlock on I suppose.

Finished making up the wires:

2x Seat connector to 2x ground lug (4mm2 as spec) - Heating element ground
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2x Seat connector to 2x fuse box power (2.5mm2 as spec) - Heating element power
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2x Seat connector to 1x fuse box power (0.75mm2, spec is thinner) - Control module power
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2x Seat connector to 2x JBBF (0.75mm2, spec is thinner) - Control module PWM signal
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E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Thu May 11, 2017 1:46 pm

Here's what needs to be added to the fusebox. Going to try to do this blind by reaching behind the fusebox, I really don't want to remove all the dash trim to get it out. Pre-2007 cars will have different fuse positions.

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E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Fri May 19, 2017 11:48 am

As expected taking the fuse box out is a bit of a nightmare. I bought one of those bendy driver extensions to help. The screws are T20.
First step is to remove the JBBF, that gives access to the fusebox screws from below. There's two screws on top of the JBBF then it just pulls out. The fusebox is secured by 4 screws. Still need to get the top right screw out, access is very limited. I can see why BMW wants you to remove the glovebox surround for access. However I am confident of success using a small bit holder and adjustable spanner to turn it :roll:

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E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Mon May 22, 2017 10:00 am

Dropped the fusebox finally, what a b*tch :lol: The key to getting that top right screw was a torx key of exactly the right length and even then it probably took 20 mins to unscrew it bit by bit. Don't think I will be putting that one back in.

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E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

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sp33dy
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Re: Heated seats retrofit in progress

Post by sp33dy » Mon May 22, 2017 11:02 am

Nice one, i remember doing this once before (headlight washers) and i'm not looking forward to doing it again either.

I've ordered the cable connectors, and i have the cable now too. So i'm waiting with baited breath to see how you get on. :)
2010 - E87 120d M Sport Space Grey.

Mods - OEM Xenon's, LED Rear Darkline's, Light Washers, Front PDC, CruiseCon, USB, Front Hi-Fi Mids & Tweeters, Paddle Shift Wheel, Diamond Vision 5000K H8's, Dash Storage Tray, 208M Alloys, BMW Aero Spoiler.

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Tue May 23, 2017 11:00 pm

Added the new power wires to the fusebox. All pretty straightforward, the connector for each block of fuses just pops out of the back once all the corresponding fuses have been removed from the front.

Unfortunately it seems like I ordered slightly the wrong contacts for the JBBF connector block X14270. The contacts specified by ETK (61 13 0 005 199) have a rubber grommet which means they don't fit into the connector block. We want the same size contacts without the grommet (61 13 0 005 197). Should be possible to cut the grommets off so I'm not too worried.

Fuse holder X11001 with new contacts added
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E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Fri May 26, 2017 7:55 am

Driver's & passenger control signals added to JBBF connector X14270
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New wires added to passenger seat connector. Driver's side is the same.
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Just the grounds left to put in.
Last edited by bjt on Sat May 27, 2017 8:08 am, edited 1 time in total.
E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

bjt
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Re: Heated seats retrofit in progress

Post by bjt » Fri May 26, 2017 10:44 pm

Hooked up the passenger side ground. The official retrofit uses this grounding point under the carpet in the footwell. Driver's side looks like the accelerator needs unbolting to lift the carpet.

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E87 130i M Sport, now with added doors!
E81 130i M Sport aka the Pocket Rocket - Fell victim to the Monday morning commute

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