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850 Seat recline stuck

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

B5234T5Walker
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Joined: Tue Feb 11, 2020 3:46 am
Year and Model: 1996 850R
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B5234T5Walker

850 Seat recline stuck

Post by B5234T5Walker » Tue Feb 11, 2020 3:51 am

Hi guys

My 850Rs passenger seat recliner is stuck fully forward. I removed the seat before it stopped working to clean coolant out. But when I put the seat back in and plugged it in the recline wont work. Up/down and froward/back work. The motor clicks when I press the switch and turns about 4mm each way. It sounds like it jams and stops. I un bolted the cable from the motor and the cable moves fine. The motor spins by itself aswell.
Is there any advice to get it going again.

Cheers Alex

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RickHaleParker
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RickHaleParker

Re: 850 Seat recline stuck

Post by RickHaleParker » Tue Feb 11, 2020 4:12 am

The plastic jacket on the cables expands and lengthen over time but the metal drive cable in the center does not. Eventually the metal drive cable is pulled out of the motor or the gear box.

One solution is to remove the metal cap on the end, shorten the plastic jacket ~5 mm, reinstall the metal cap. Else: you can get the length of trim by measuring the slack of the metal drive cable before you take the metal cap off.

You can remove the metal cap by slowly heating it with a heat gun or a hair blow dryer. Heat until the plastic is just beginning to soften. Then pull off the metal cap.
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Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

B5234T5Walker
Posts: 2
Joined: Tue Feb 11, 2020 3:46 am
Year and Model: 1996 850R
Location: Christchurch
Has thanked: 0
Been thanked: 0
New Zealand
B5234T5Walker

Re: 850 Seat recline stuck

Post by B5234T5Walker » Mon Feb 17, 2020 9:14 pm

Hi Rick Hale.

I have done that and re installed the cable with about 3/4 of an inch showing. It's still having the same problem though. It's like the cable gets stuck and jams the Motor but the motor and cable move freely by themselves

Cheers

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