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93 850 Ice bound door locks—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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JimBee
Posts: 1915
Joined: 9 December 2008
Year and Model: 93 and 2 96 850's
Location: Minneapolis
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93 850 Ice bound door locks—solved

Post by JimBee »

In Minneapolis the other day, we had rain all day, temps in the upper 30's, then rapid fall off to well below freezing. Yesterday, tried to enter my car and the key wouldn't even part the slide cover to go in the cylinder. I got some PB Blaster in there which has worked before, but to no avail.

Finally, I decided heat was the only solution. Got out the plumbing torch, set it upright on the ground and with several key-warmings, I finally got the trunk cylinder to operate, that opens all the locks. Even that one refroze so when I parked to shop had to leave it unlocked since I didn't have my torch with me.

Today it warmed up to high 20's and all the locks were freed up. I'm keeping my torch handy for the next couple of months.

Afterthought: a butane lighter might have worked and is easy enough to carry.

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WhatAmIDoing
Posts: 965
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Year and Model: 1998 S/V70 T5M
Location: North America
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Post by WhatAmIDoing »

A little silicone and Teflon spray in the locks goes a long way in the winter. Wipe some Teflon on the door seals as well to keep them from sticking.
'98 S70 T5M - 323,000mi - awaiting heart transplant :shock:
'98 V70 T5M - 324,000mi - my new project
'99 S70 "AWD" - 220,000+mi - gone :cry:
Knows enough to be dangerous :wink:

JimBee
Posts: 1915
Joined: 9 December 2008
Year and Model: 93 and 2 96 850's
Location: Minneapolis
Has thanked: 25 times
Been thanked: 42 times

Post by JimBee »

Teflon spray. Hadn't heard of that before but, yeah, seems like a capital idea. I have wiped wax on the seals for winters past and that seemed to help. Surprisingly, for all the jammed up lock cylinders this time, the door seals weren't frozen, maybe due to last year's waxing.

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