Volvo 850 Climate control knob repair.

Barn Owl · Post by **Barn Owl** » 14 Nov 2009, 22:24

I had one of my climate control knobs break at the mounting base and I was able to make a quick permanent repair of it. In addition to the broken knob I noticed that the other two were cracked and would fail eventually so I modified them all. The knob's base is an exact fit for a S&W40 caliber spent casing end. I marked the case and then cut it with a hack saw. Slide the brass band over the knobs base and the repair is better than new. The fit is so perfect that no glue is needed. I am attaching a photo to show the repair. I think the photo will do a much better job at explaining this.

Post by **Ozark Lee** » 15 Nov 2009, 21:58

Perfect repair!

I believe this is for the MCC system but please confirm. I would like to add this to the repair database but I want to get it properly categorized.

...Lee

Barn Owl · Post by **Barn Owl** » 15 Nov 2009, 23:52

I have the auto climate control. Is that ecc?

wdckwrth · Post by **wdckwrth** » 04 Jan 2010, 08:40

Anyone know were to get replacements for the knobs? My passenger side knob has gone missing. (1995 850 with manual climate control)

Post by **Ozark Lee** » 04 Jan 2010, 20:52

Welcome to MVS,

You can buy the knobs new from a dealer or you can likely get them salvage from a company like Erie Vo-Vo, they have a link at the top of the page but call them rather than e-mailing them. If you can find one at a local salvage yard then you can save the freight which is likely more than the part itself is worth. If you need other stuff a lot of salvage yards have the "pocket provision" on stuff that they have not yet removed - if it fits in your pocket it is free with any other purchase.

...Lee

wdckwrth · Post by **wdckwrth** » 07 Jan 2010, 12:18

Thanks Lee. I have a line on a local salvage yard. I'll run over there once it warms up a bit around here.

9394volvo850s · Post by **9394volvo850s** » 10 Jan 2010, 00:38

nice job.

npharper · Post by **npharper** » 24 Apr 2012, 00:50

I had the same problem. I did basically the same repair, too, only I used small zip ties and superglue in place of the sawed casings. They seem solid.

PlayGod · Post by **PlayGod** » 01 Jun 2014, 13:42

Lee, the photo shows ECC knobs. The MCC knobs are completely different shape, and the area in question is not even round. I have a '95 850 GLT Vagen, and I just replaced broken knobs and stripped gears in the MCC (better half turned them "too far").

There is a post on Volvoforums that shows how to remove the MCC... thank goodness I managed to do the repair with parts from a salvage MCC. Removing the MCC cables would have been an extreme hassle.