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Climate Controls Replacement
 
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Pelican Technical Article:

Climate Controls Replacement

Steve Vernon

Time:

1 hour1 hr

Tab:

$500

Talent:

**

Tools:

Trim removal tool

Applicable Models:

Mercedes-Benz C250 (2012-14)
Mercedes-Benz C300 (2008-14)
Mercedes-Benz C350 (2008-14)

Parts Required:

Climate control unit

Hot Tip:

Use care prying trim pieces off

Performance Gain:

Working heat and A/C

Complementary Modification:

Change cabin air filter

The climate control unit is relatively simple to remove: it is just held in place behind a clipped in trim panel with four plastic clips on the housing. If you have never removed the trim panel before there is a very good chance it is going to be a tight fit. You will need to pry off the cover plate. It is important that you pry from the right area to avoid cracking or breaking the piece.

Also if you are going to be working on the interior of your vehicle make sure you own and use a set of trim removal tools. These hard plastic tools are great for working with trim pieces and pay for themselves many times over the first time you scratch a trim piece by trying to remove it with a screwdriver. Pelican sells them. If you are doing this job and don't own them consider ordering them along with the parts for this job.

If the trim piece that surrounds the climate control unit (red arrow) has been removed before you may be able to easily pry it off from around the unit without cracking it.
Figure 1

If the trim piece that surrounds the climate control unit (red arrow) has been removed before you may be able to easily pry it off from around the unit without cracking it. The piece on our project car had never been removed and was a really tight fit so I decided to remove the ash tray (yellow arrow) to get a better angle on the piece and eliminate the chance of breaking or cracking it.

Before you remove the trim make sure to put the transmission in gear to clear some room (yellow arrow).
Figure 2

Before you remove the trim make sure to put the transmission in gear to clear some room (yellow arrow). As you can see I have removed the ash tray, as the trim panel on our project car would just not let go without me worrying about breaking it. If yours is really stuck please see our article on removing the ash tray for additional assistance. With the ash tray off you can reach under with your fingers and start to pull the bottom of the trim piece away without worrying about damaging it. On the top section you want to pry it out as close to the clips as possible.

This photo illustrates the four clips that hold the trim piece in place.
Figure 3

This photo illustrates the four clips that hold the trim piece in place. When prying out the upper clips get the tool as close to the mounting points as possible (red arrows).

Wiggle and pull the control unit out from the dash.
Figure 4

Wiggle and pull the control unit out from the dash. There are four plastic clips (red arrows, two shown) on the top and the bottom that hold it in place.

Turn the unit over and remove the wiring connections by pushing down on the release tabs and then moving the hinges on two of the connections down (red arrows).
Figure 5

Turn the unit over and remove the wiring connections by pushing down on the release tabs and then moving the hinges on two of the connections down (red arrows). This will push the connections out. The other connection is simple. Release the tab (yellow arrow), and pull the connection from the unit. Installation is the reverse of removal.

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Page last updated: Fri 12/9/2016 02:56:06 AM