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Mythical 850 rear heated seats

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
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coop
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Mythical 850 rear heated seats

Post by coop »

Finally got the heated rears pulled. Figured I’d put up a quick thread with some pics and info that I put together during the process

I may have screwed up cutting out the 12v wiring but I read multiple times that a majority of the cars are at least pre wired. If not the wiring diagram is attached and will need to be wired through the dash and will be a pain in the ass but likewise would have been a pita to follow and and pull out the whole loom so that’s on who ever wants to install them next
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foggydogg
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Post by foggydogg »

Fredagsmys in back.
69 1800s, @500k Death by Rust
94 850 Turbo, T-boned, ambulance for me, crusher for it
97 855 T5, 855 R projects
98 V70R x2, Silver Junkyard rescue, Coral Red
98 V70GLT x2, parts cars
00 V70xc x2, both now dead
62 122s, gone to live in Richmond
56 445 Duett basket project
1950 Studebaker 2R10 flatbed, T9 crashbox
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DennisCA
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Post by DennisCA »

I did not know those were rare, I got those in my 855. It is not a high spec car, front power windows only, no cruise control.
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scot850
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Post by scot850 »

This has been a long running joke here on MVS. I'm not sure any P80's were ever optioned with these or even if it was an option in North American market cars. If there were any they could possibly be customer cars bought straight from the factory.

It would have been a nice option to have had, but never seen one till now.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold
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abscate
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Post by abscate »

New unicorn search

P80 Awd with m58 and heated rear seats. In Nautic Blue , of course.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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coop
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Post by coop »

DennisCA wrote: ↑19 Dec 2024, 23:15 I did not know those were rare, I got those in my 855. It is not a high spec car, front power windows only, no cruise control.
That adds to my theory that these cars are at least prewired for the 12v lines for the seats. So hopefully reinstallation is as “simple” as adding a relay and the cable for the switches.
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BEJinFbk
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Post by BEJinFbk »

abscate wrote: ↑20 Dec 2024, 01:14 New unicorn search

P80 Awd with m58 and heated rear seats. In Nautic Blue , of course.
Gonna be from the
Great White North.
All you, Neil!
'98 V70 R - Well Equipped for Life Up North... ;)
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erikv11
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Post by erikv11 »

scot850 wrote: ↑19 Dec 2024, 23:45 This has been a long running joke here on MVS. I'm not sure any P80's were ever optioned with these or even if it was an option in North American market cars. If there were any they could possibly be customer cars bought straight from the factory.

It would have been a nice option to have had, but never seen one till now.

Neil.
The unicorn joke has been a heated third row :P
We've seen these, but they are rare.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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washirley1
Posts: 2
Joined: 14 November 2023
Year and Model: 1995 850 T-5R
Location: Oakland, CA

Post by washirley1 »

Wow. The only part I have not found in the US is the harness (9148513-6). Dave Barton (of Dancing Moose fame) can reproduce the cable with some photos of your harness. [[email protected]]
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martinmoran89
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Year and Model: 1995 850 T-5R
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Post by martinmoran89 »

coop wrote: ↑19 Dec 2024, 09:38 Finally got the heated rears pulled. Figured I’d put up a quick thread with some pics and info that I put together during the process

I may have screwed up cutting out the 12v wiring but I read multiple times that a majority of the cars are at least pre wired. If not the wiring diagram is attached and will need to be wired through the dash and will be a pain in the ass but likewise would have been a pita to follow and and pull out the whole loom so that’s on who ever wants to install them next

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Hi there. Very nice read. So the 9148513 harness runs from the yellow plug under the ash tray to the switches?
Also how many connectors are at the rear seat? I've found 2 on mine, I've also got the 2 rear heated seats switches but no realy, harness or pads.

Any idea where I could get my hands on the remaining items? It's for my 1995 850 T-5R
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