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93 850 - Left half Power Driver seat malfunction <solved>

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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M4rinus
Posts: 50
Joined: 9 September 2013
Year and Model: Volvo 850 1993
Location: Palmer Lake, CO

93 850 - Left half Power Driver seat malfunction <solved>

Post by M4rinus »

Hi guys,

I am having the weirdest thing.
The right half of my drivers seat responds normally to the controls.
The left side won't come up. If I go back down past where it's stuck and try to move it back up, it gets stuck there. If I go down further again, it will get stuck there. All the while the right side moves up without problem..... no problem only if you don't count the tweaked seat and that it's now so far back it's practically unusable.

I am not finding anything on this issue. I only found instructions for when the entire seat has problems.

Please help.
Last edited by M4rinus on 28 Apr 2014, 14:44, edited 1 time in total.

mecheng
Posts: 1271
Joined: 27 March 2014
Year and Model: 1998 Volvo S70 T5
Location: Ontario, Canada
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Post by mecheng »

M4rinus wrote:Hi guys,

I am having the weirdest thing.
The right half of my drivers seat responds normally to the controls.
The left side won't come up. If I go back down past where it's stuck and try to move it back up, it gets stuck there. If I go down further again, it will get stuck there. All the while the right side moves up without problem..... no problem only if you don't count the tweaked seat and that it's now so far back it's practically unusable.

I am not finding anything on this issue. I only found instructions for when the entire seat has problems.

Please help.
I had this problem with my passenger seat. Remove the switch from the housing and spray contact cleaner down the shaft and push on switch with a bit of force and it will start working. Spray more and cycle the switch. Be careful, don't activate the side air bag, put the red/orange spacer to prevent this.
1998 Volvo S70 T5 - SE - 240km - Sold July 2018
1997 Volvo 850 GLT - 190km
Boost is my drug of choice

M4rinus
Posts: 50
Joined: 9 September 2013
Year and Model: Volvo 850 1993
Location: Palmer Lake, CO

Post by M4rinus »

By the 'switch' do you mean the controls? because I already sprayed those and that didn't work.
Which shaft are you referring to? Also I don't believe my year has an airbag in the seat.

mecheng
Posts: 1271
Joined: 27 March 2014
Year and Model: 1998 Volvo S70 T5
Location: Ontario, Canada
Has thanked: 15 times
Been thanked: 21 times

Post by mecheng »

M4rinus wrote:By the 'switch' do you mean the controls? because I already sprayed those and that didn't work.
Which shaft are you referring to? Also I don't believe my year has an airbag in the seat.
The controls yes, you have to remove the controls from the plastic housing basically until the circuit board is exposed and each control looks like an old joy stick with a shaft, I had to spray into each control with WD-40 and eventually with a bit of force, the control started working
1998 Volvo S70 T5 - SE - 240km - Sold July 2018
1997 Volvo 850 GLT - 190km
Boost is my drug of choice

M4rinus
Posts: 50
Joined: 9 September 2013
Year and Model: Volvo 850 1993
Location: Palmer Lake, CO

Post by M4rinus »

Unfortunately that was the first thing I checked and did. Sadly that did not fix it. :(

mecheng
Posts: 1271
Joined: 27 March 2014
Year and Model: 1998 Volvo S70 T5
Location: Ontario, Canada
Has thanked: 15 times
Been thanked: 21 times

Post by mecheng »

I believe there are 3 motors, if the motor works one way it should work the other way, if not it is the control. If you are activating a seperate command it could be the motor itself. It is not clear what operation you are describing
1998 Volvo S70 T5 - SE - 240km - Sold July 2018
1997 Volvo 850 GLT - 190km
Boost is my drug of choice

M4rinus
Posts: 50
Joined: 9 September 2013
Year and Model: Volvo 850 1993
Location: Palmer Lake, CO

Post by M4rinus »

I figured it out.

I took the seat covering off and it was the square rod that runs across from the motor to the other side. It was out of the square hole in the gears. Now to assemble it all back. :)

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