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Will a 1999 S70 Front Seat fit in a 97 850?

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.
1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Will a 1999 S70 Front Seat fit in a 97 850?

Postby LakeFlambeau » 10 Aug 2010, 01:46

I have a 1997 850 that the front driver seat leather is completely shot. (torn, pieces missing etc)
I have come across a 1999 S70 that is being parted out. The front seats
are not great, but much better than what I have. If I can
get for cheap, will they bolt right in and plug right wiring harnesses?
Second question, I know the passenger seat on the 850 is a manual adjust.
Not sure if the S70 passenger is manual or powered. Would this seat work, replace the pair?
I do not want to screw around a lot , but if it is a easy
bolt right in, I might try it.
Anybody do this with success?

Thanks....
1998 XC, Now a 2nd 1998 XC 1998 S70
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1997 850, 1992 740 Turbo Wagon. 1987 740 Turbo Wagon, 3 - 240's Various Years
LakeFlambeau
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Re: Will a 1999 S70 Front Seat fit in a 97 850?

Postby jblackburn » 10 Aug 2010, 01:53

Sure can, have a look at this:

viewtopic.php?f=1&t=28208

The WHIPS system will not work in your 97, though, but I doubt you plan on crashing anyway :mrgreen:
'98 S70 T5 218K miles
2012 Chevy Cruze LT 6MT


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!
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jblackburn
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Model and Year: 1998 S70 T5

Re: Will a 1999 S70 Front Seat fit in a 97 850?

Postby LakeFlambeau » 18 Aug 2010, 03:32

Thanks for the link..... I have another question, on the passenger
seat on my 850, that I did not see addressed.
The passenger seat is a manual adjust (the lever in the front you pull up on and slide the
seat forward and back)
The S70 passenger seats I have seen are all powered adjust. I looked under
my 850 passenger
seat and there are electrical connections, but not as many as a powered
seat. (unless I am missing something) I do not think there is a place to plug in a powered passenger seat.
I also have a 1998 S70 to compare that has a powered passenger seat.
I beleive the parts car I am getting the seats out of
is a 1999 S70 with a powered passenger seat.
Electrical connections seem different.
If I do this install, how do I handle putting a powerd
passemger seat in a car without the proper power connections.
I would need to be able to adjust the seat at some point.
If this part was addressed in the link, I missed it.
Anybody have any additional thoughts?
Can the S70 seat be removed from the brackets,
and bolted to the 850 brackets? Thoughts???
1998 XC, Now a 2nd 1998 XC 1998 S70
Previous
1997 850, 1992 740 Turbo Wagon. 1987 740 Turbo Wagon, 3 - 240's Various Years
LakeFlambeau
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Model and Year: (2) 98 XC's 98 S70

Re: Will a 1999 S70 Front Seat fit in a 97 850?

Postby VCA » 18 Aug 2010, 11:36

jablackburn wrote:Sure can, have a look at this:

viewtopic.php?f=1&t=28208

The WHIPS system will not work in your 97, though, but I doubt you plan on crashing anyway :mrgreen:
WHIPS is passive--it's a specially-stressed metal plate in the seat that deforms in the event of a rear-end impact which absorbs the forces that causes whiplash. Now, SIPS won't work if the S70 had electronic side impact bags (there's a change in structure week somewhere--a friend with an early-production '99 S70 has pyrotechnical side impact bags, while my late-production '99 S70 has a wiring harness and no pyrotechnic igniter). Get a '98 seat if you want power functions--the '99s need to be on the CAN bus and the controller's been known to become ill-tempered if there's no CAN bus.
2008 S80 T6 AWD
1999 S70 GLT

Responsible for the care of a '92 960 and an '07 S60R
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Re: Will a 1999 S70 Front Seat fit in a 97 850?

Postby LakeFlambeau » 18 Aug 2010, 12:42

While I do not want to say I am not concerned about the various safety features in the seat,
my concern is how do I adjust the power seat (up and down, front to back etc) if there is
no place to "plug it in". There seems to be a lack of a wiring harness to plug the seat in to.
That is what I am trying to figure out. Have someone with who has done this before help me out.
Thanks....
1998 XC, Now a 2nd 1998 XC 1998 S70
Previous
1997 850, 1992 740 Turbo Wagon. 1987 740 Turbo Wagon, 3 - 240's Various Years
LakeFlambeau
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Posts: 23
Joined: 04 May 2010, 15:31
Location: SE Minnesota
Model and Year: (2) 98 XC's 98 S70

Re: Will a 1999 S70 Front Seat fit in a 97 850?

Postby LakeFlambeau » 19 Aug 2010, 02:26

Well I popped the passenger seat out of the 850. Turns out there is a second wiring harness on the car.
I thought it plugged into something on the maual 850 seat, but it does not. So I beleive the power for the
power passenger seat is there. Sorry about the questions....
I will post results, which may not be for a couple of months now. Did not
get job done before son leaves for college with the car. Might have to wait for
a weekend when he gets home.

Thanks for the responses....
1998 XC, Now a 2nd 1998 XC 1998 S70
Previous
1997 850, 1992 740 Turbo Wagon. 1987 740 Turbo Wagon, 3 - 240's Various Years
LakeFlambeau
New Member
New Member
 
Posts: 23
Joined: 04 May 2010, 15:31
Location: SE Minnesota
Model and Year: (2) 98 XC's 98 S70

Re: Will a 1999 S70 Front Seat fit in a 97 850?

Postby jblackburn » 19 Aug 2010, 02:29

You will find that most of the things on these cars are pre-wired for any accessory. I don't have an 850 myself, so I was hesitant to go look and comment back on this, but at least on my S70, the wiring is there for anything you may want to add - fogs, CD changer, heated seats are even built in if you don't have the switches for them, etc.
'98 S70 T5 218K miles
2012 Chevy Cruze LT 6MT


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!
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jblackburn
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Model and Year: 1998 S70 T5

Re: Will a 1999 S70 Front Seat fit in a 97 850?

Postby LakeFlambeau » 26 Aug 2010, 20:33

Ok, Completed the install of set of front seats from what turned out to be a 1998
S70 into my 1997 850.
I used the multiple page guide with pictures that is posted at the start of this
posting.

Some things went as stated, others were different/easier.

Passenger seat. The passenger seat was a power seat vs
a manual in my 850. Install was as stated. I did
not remove the manual adjustment arm, because it is a power seat
and I did not have to change over the seat belt catch.
Just used what was on the seat.
The power seat part did not function at first. I had to remove
the cover on the fuse box to get to the "hidden" breakers/fuses 39 and 40.
Being the 850 did not have a power seat, number 40 slot was empty.
I was able to get that fuse out of the car I was taking seats from and install in my 850.
That got 12 volt to the wiring harness on the 850. BUT, the 2nd power wire on the seat
did not have wire to it from the 850 harness. I was able to cut the harness off of
the S70 car so I had an extra connector. I then removed a female connector from the
harness from S70. Plugged it into the empty plug on the 850. Installed a Y connector
to the other 12 volt wire in the harness. Now 12V went to both wires on the seat.
Seat works fine now. I think one of these wires is supposed to be constant and
the other switched, but the seat adjusts so I called it good. Black was ground
at this plug and green was 12V. On the seat side of the plug, red was the wire
not getting 12v due to the missing wire.
I am sure there are other ways to do this, but this is what I did.

Drivers seat. This one went just as the instructions said.
Only pain was cutting that bracket off as described.
Fortunatly I knew someone with a air hammer. With
the cutting blade, he popped the bracket off in 10 seconds.
Wiring was all there since power seat to another power seat.

Thanks for everyones help...
PS My heated seats actually work again.
1998 XC, Now a 2nd 1998 XC 1998 S70
Previous
1997 850, 1992 740 Turbo Wagon. 1987 740 Turbo Wagon, 3 - 240's Various Years
LakeFlambeau
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Posts: 23
Joined: 04 May 2010, 15:31
Location: SE Minnesota
Model and Year: (2) 98 XC's 98 S70

Re: Will a 1999 S70 Front Seat fit in a 97 850?

Postby t5rrr » 26 Aug 2010, 22:12

Glad the swap worked out for you! Nice work on getting the powered passenger seat to work

Congrats :)
Wagon Brigade >> 94 855 NA | 97 Subaru Impreza OBS | 07 Suzuki SX4
Previous Bricks >> 90 240 GLE 2.0 | 98 S70 T5A 2.0 | 03 XC90 T6 2.9
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