replacing faulty heater core in Volvo 850 car

 by londonskies
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Step 6: Assuming you've fixed the leak ...

If you had a lot of coolant leaking on the carpet before or during this repair will need to clean and drying your carpets.  I used carpet-shampooing vacuum cleaner and a bucket of slightly soapy water, repeated 3 or 4 times. Then a process of carpet drying which in cold weather could take days, but needn't stop you using your can in the meanwhile. Use absorbent rags or newspaper to wick the moisture from carpet. Leave for 12 hours then replace with dry newpaper/rags.

I also used silica gel bags because the weather was cold and damp. It's best to do this with the carpets exposed to help ventilation of the carpet. Also you will still have access to the heater core housing to double-check that that pipe joint isn't dripping even after the heater has been used.
When carpet is dry replace black plastic side panels, and carpets. Then fit the under-dash panels into position, taking care to connect the panels correctly with the guides before screwing securely. If the panel is not in its guide you'll be able to bend the edges unreasonably.

If you try this instructable, you are very welcome to 'Add Comment' about how you got on and how to improve these instructions. Thanks. Dom.

Spurious bonus material: This stunt was a part of a Swedish Volvo commercial demonstrating the 850's crash survivability.

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bushdance says: Nov 15, 2010. 2:15 PM
Great write up, photos and annotations!
It certainly helped give me confidence to tackle the job. Was able to do it in an hour, knowing exactly what to look for at each step thanks to this. So, many thanks!
ccuomo says: May 21, 2011. 3:22 PM
Very Help full,I replaced my heater core in my 1999 V70 with one I bought on line at a auction site for $40,it was brand new and came with Orings and Foam Tape. your instructions were great! .trash bag was KEY to keep from flooding my cars carpet.
Thank You VOLVO FOR LIFE!
londonskies (author) says: Nov 15, 2010. 3:10 PM
I'm glad it was useful. :)
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