S70 / V70 front seat swap to 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
User avatar
t5rrr
Posts: 128
Joined: Thu Nov 26, 2009 8:17 pm
Year and Model: 1994 855
Location: Dublin, OH

S70 / V70 front seat swap to 850

Postby t5rrr » Sun Mar 28, 2010 2:24 am

I recently swapped front seats from a junkyard 98 V70 into my 94 855. My 855 front seats had a nasty black dye applied, some seams tearing and the driver power seat recline was not working when I bought the car.

Passenger side was cake, driver side had some challenges, so here goes...

Here's a step by step of the passenger seat (manual type):

remove seat bolts
Image

Image

Image

Detach seatbelt and remove the bracket
Image

unplug harness of seat heater and remove seat from car
Image

Prep V70 seat
Image

Remove seatbelt bracket from V70 seat
Image

Bolt in 855 seatbelt bracket into V70 seat
Image

Remove V70 seatbelt latch
Image

Remove 855 seatbelt latch and install into V70 seat
Image

Image

Install prepped V70 seat into 855 and bolt everything in and replace the side cover before replacing height adjustment handles.
Image

One thing to note is the V70's height adjustment handles have a plastic tab on the inside that needs to be wedged slightly to remove the handle, I broke the first one trying to force it out with a screwdriver :o Have to hit the junkyards again to get another handle.
Image
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

User avatar
t5rrr
Posts: 128
Joined: Thu Nov 26, 2009 8:17 pm
Year and Model: 1994 855
Location: Dublin, OH

Re: S70 / V70 front seat swap to 850

Postby t5rrr » Sun Mar 28, 2010 2:34 am

On to the driver side powered seat

Unbolt seat, remove seatbelt, unplug harness and remove from car
Image

Driver seatbelt bracket is riveted so time to break out the heavy tools!
Image

Used air hammer to chisel the rivet off
Image

Image

Adapt the 855 seatbelt bracket into the V70 seat, I had to rearrange some washers from V70 seat's original seatbelt bracket to work with the 855 bracket so it'll stay firmly in place.
Image

Image

855 seatbelt latch has wiring harness that I cut and spliced into the V70 seat (for the seatbelt warning light)
Image

Image

Install prepared V70 driver seat into 855 and plug in control harness (note the airbag lockout tag)
Image

Image

Remove and store the airbag lockout tag
Image

Install seatbelt into bracket and cover
Image

Image

Image

Enjoy fruits of labor
Image
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

heat391
Posts: 26
Joined: Sat Jan 16, 2010 11:14 pm
Year and Model: 1994 850 Turbo Wagon
Location: Tennessee

Re: S70 / V70 front seat swap to 850

Postby heat391 » Sun Mar 28, 2010 3:05 pm

Just a couple quick questions, since the '94s didn't have the side airbags, what did you do with the wiring for the seat's airbag?

Do you know if it is possible to wire the airbags into the sis system?

User avatar
t5rrr
Posts: 128
Joined: Thu Nov 26, 2009 8:17 pm
Year and Model: 1994 855
Location: Dublin, OH

Re: S70 / V70 front seat swap to 850

Postby t5rrr » Sun Mar 28, 2010 6:03 pm

To my understanding the side airbags are mechanically actuated, hence the red stopper gizmo to prevent the side airbags from deploying during transportation.

During the swap I did not notice additional wiring or harness that was on the V70 that my 855 did not have.
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

Ozark Lee
MVS Moderator
Posts: 14188
Joined: Thu Sep 07, 2006 2:24 pm
Year and Model: Many Volvos
Location: USA Midwest
Flag: United States of America

Re: S70 / V70 front seat swap to 850

Postby Ozark Lee » Mon Mar 29, 2010 2:03 am

T5rrr, you are correct. The triggers for the SIPs bags are pyrotechnic and they are triggered by force alone, it is not electrical. Good job on this. The thing that always had me flummoxed from looking at VADIS was the difference in the seat belt mounts and you solved that problem.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
'98 S70 T5
'99 V70XC - RIP - Wrecked Parts Car.
'99 V70XC - Nautic Blue
Previous:
'96 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

850 Turbo1
Posts: 265
Joined: Sun Jul 19, 2009 1:25 am
Year and Model: 1996 Volvo 850
Location: Toronto (Mississauga) ,Canada

Re: S70 / V70 front seat swap to 850

Postby 850 Turbo1 » Mon Mar 29, 2010 5:26 am

t5rrr wrote:To my understanding the side airbags are mechanically actuated, hence the red stopper gizmo to prevent the side airbags from deploying during transportation.

During the swap I did not notice additional wiring or harness that was on the V70 that my 855 did not have.



Thanks so much for the writeup...I will probably be doing this soon enough!

My tan seats are not looking too great :(
1996 850 T5 Sedan
1996 850 T5 Platinum Edition Wagon
--Always Learning--MB--

michaelairllc
Posts: 1
Joined: Thu Apr 08, 2010 8:26 pm
Year and Model: 1996 Volvo 850
Location: Hebron, IL

Re: S70 / V70 front seat swap to 850

Postby michaelairllc » Thu Apr 08, 2010 8:35 pm

This is a great fix for old seats. One thing I found is that you can swap out the lower part of the attaching seat rail with 4 screws and avoid any drilling for the seat belt swap out. Just be sure that the rails are in the same position on the gear when reinstalling (preferably all the way aft). I was curious why the seat belt coupler needed to be changed from one seat to another. Great info on Airbags.

karmasai
Posts: 5
Joined: Thu Aug 18, 2011 8:56 pm
Year and Model: c70 2002
Location: Oakland, California

Re: S70 / V70 front seat swap to 850

Postby karmasai » Fri Aug 19, 2011 6:33 pm

I'd like to know if I'm mistaken, but it seems like all first generation Volvo 70 series cars use the same seat mount points as the 93-97 850 for the front seats... am i right?

that being said, can this be done from a 2000 S70 or a 2002 C70 rather than a '98 S70? As for the S70 I know there are some engine differences between the 98 and 2000, but I'm not sure if there were any interior changes. As for the C70 I learned to drive on an 850 and now drive a c70, but there is a 15 year gap between my ownership of the two cars.

Matty Moo
Posts: 1697
Joined: Mon Oct 13, 2008 3:38 am
Year and Model: 850, 1996
Location: Ann Arbor, MI
Flag: United States of America

Re: S70 / V70 front seat swap to 850

Postby Matty Moo » Tue Sep 06, 2011 9:15 am

Kickass write-up. Didn't know it existed until I needed it yesterday.

Bought a VERY nice set of charcoal seats out of a 99XC for my Platinum. Once I got them home and cleaned up, the seat belt mounting issue had me perplexed and contemplating doing something stupid. I probably sat there for an hour, pulled this up on my phone and had the fronts replaced in no time flat.

The only issue I have to figure out is the power situation to the passenger seat. My original seats were memory, and the XC seats aren't. The passenger side wiring is slightly off somehow...one harness is slightly different.
Image
http://www.midwest-abs.com
Simplycleanpowerwash.com

1996 850 Platinum Wagon. ARD Green Tune, OBX.-Gone
1998 S70 ARD tune, EST exhaust, SE/R interior.
1999 S70 Plain Jane.
2000 S70 GLT
2014 Ram
2012 Jeep Wrangler Unlimited

Faust
Posts: 138
Joined: Wed Jan 04, 2012 2:22 pm
Year and Model: V70 2004
Location: MA
Flag: United States of America

Re: S70 / V70 front seat swap to 850

Postby Faust » Mon Jan 16, 2012 12:22 am

michaelairllc wrote:This is a great fix for old seats. One thing I found is that you can swap out the lower part of the attaching seat rail with 4 screws and avoid any drilling for the seat belt swap out. Just be sure that the rails are in the same position on the gear when reinstalling (preferably all the way aft). I was curious why the seat belt coupler needed to be changed from one seat to another. Great info on Airbags.


Could you explain that a little more? I have a pair of V70 seats to go in my 855, not sure I see the screws you mention. My 855 seats are not power, is there a difference?


Return to “Volvo 850, S70, V70, C70 & V70-XC Forum (1992-2000)”

Who is online

Users browsing this forum: jblackburn, MSNbot Media, RigsPGT, v-45magna and 48 guests