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-   -   MCC removal (https://volvoforums.com/forum/volvo-850-16/mcc-removal-35372/)

850tony Oct 13, 2009 01:50 PM

MCC removal
 
15 Attachment(s)
it has been asked that some instruction be given to help with the removal of an mcc seeing as its not exactly the easyest thing to do.


begining steps:

1) remove radio - push in the two upright rectangular peices on the lower right and left of the radio, pull radio out and unplug. make sure you have the radio code before hand

2) remove all three knobs on mcc - to help with removal a pliers of channel lock may help, dont crack the knob though.

3) remove the two screws holding the face plate on - there are two screws behind the driver and passenger heat control knobs

4) remove the face plate - i usualy use a flat tip screw driver and give it a little pry here, and a little jimmy there untill it comes out

5) remove the four screws holding the mcc unit in place - these screws are located at the four corrners of the white unit


***beer break***

this is the part that it starts to get a little tricky. what needs to happen in the cables need to be moved from the mcc. this is easyer said then done, but hopfully my steps will help.

1)using a t10 torx remove the three screews holding the black cover onto the mcc. keep track of these screws, you may need them for spares
Attachment 22274

2)remove the retaining C clip from the front of the mcc (air flow knob)
Attachment 22275
Attachment 22276

3)start to remove the control arms that are connected to the cables (walk through the pictures below)
Attachment 22277

Attachment 22278

pull out center round cam knob

Attachment 22279

Attachment 22280

remove clicker ball

Attachment 22281

Attachment 22282

remove last black arm

Attachment 22283

Attachment 22284

Attachment 22285


***BEER BREAK!!!***

these are the clips that hold the cables onto the mcc. best thing i can say is try using a needle nose pliers or maybe a flat tip to realease them out of the mcc (or if you dont care just crack the mcc)

there are three on the driver side, and one on the passenger side
Attachment 22286

the two remaining cables are on the far driver side. and the far passenger side.

removal is quick and easy, both remove the same way, they are almost identical)
Attachment 22287

Attachment 22288

with that all done, assuming you have already removed the cable clips that are holding the cabels to the the mcc white plastic, you should be able to turn and twist out the mcc unit.


hope that helps, let me know if you need a larger picture, or more instructions.

tech Oct 13, 2009 07:32 PM

Nice write up I am pinning it.

rspi Jun 13, 2011 11:48 PM

How far does one have to dig into this thing to replace light bulbs that are out?

rspi Jun 14, 2011 11:56 AM

This does not work for my unit. I have the '95 model and there are NO screws behind the knobs.

rspi Jun 14, 2011 12:27 PM

Ok, it appears that I have a ECC unit. So, I checked Matthew's site and found some instructions. However, I simply pulled the knobs off then jerked it out of the dash with 2 sets of pliers.
http://www.matthewsvolvosite.com/for...hp?f=1&t=19025

tech Jun 15, 2011 08:25 PM

I just remove the radio and push it out from behind.

rspi Jun 15, 2011 09:17 PM


Originally Posted by tech (Post 276428)
I just remove the radio and push it out from behind.

Unfortionately my wagon has an after market stereo in it and I have no idea how to get it out so the pliers was the simpliest thing I could think of.

tech Jun 15, 2011 09:27 PM

Ok good plan then.


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