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Pelican Technical Article:

Climate Controls Removal

Steve Vernon

Time:

1 hour1 hr

Tab:

$0

Talent:

*

Tools:

Philips head screwdriver

Applicable Models:

Mercedes-Benz W124 (1986-95)

Hot Tip:

Use care not to scratch the wood trim

Performance Gain:

Working climate control

Complementary Modification:

Clean air vents

Access to the climate control unit as well as the hazard switch plate is simple and can be performed in well under an hour with a simple Philips head screwdriver.

Begin by disconnecting the ground strap (yellow arrow) from the battery's negative terminal (red arrow).
Figure 1

Begin by disconnecting the ground strap (yellow arrow) from the battery's negative terminal (red arrow). Please see our article on battery tending and removal for further assistance.

The trim cover piece is held in place by two Philips head screws on the underside just above the radio (red arrows) as well as two clips on the top (yellow arrows).
Figure 2

The trim cover piece is held in place by two Philips head screws on the underside just above the radio (red arrows) as well as two clips on the top (yellow arrows).

Remove the two screws and pivot the trim piece out from the bottom (red arrow).
Figure 3

Remove the two screws and pivot the trim piece out from the bottom (red arrow). You need to pivot this up while applying a little hand pressure on the top (yellow arrow) to get the upper clips to remove.

This photo illustrates the two upper clips (red arrows).
Figure 4

This photo illustrates the two upper clips (red arrows).

With the trim piece removed use a Philips head screwdriver and remove the six screws holding the climate control unit to the center console and upper switch plate (red arrows).
Figure 5

With the trim piece removed use a Philips head screwdriver and remove the six screws holding the climate control unit to the center console and upper switch plate (red arrows).

With all the screws removed the climate control unit will pull forward and out from the center console (red arrow).
Figure 6

With all the screws removed the climate control unit will pull forward and out from the center console (red arrow).

On the back of the unit are two multi pin connectors on each side (red arrows).
Figure 7

On the back of the unit are two multi pin connectors on each side (red arrows). The unit is labeled left and right but it is difficult to mix up the cables as the left one has a hard time reaching the right side. Label the wires if you think there will be any confusion. Simply wiggle and pull the connections straight up.

The cover for the switch plate has a plastic surround protecting the wiring from the crash tube behind it.
Figure 8

The cover for the switch plate has a plastic surround protecting the wiring from the crash tube behind it. Squeeze in the four tabs and it can easily be removed (red arrow).

The switches are all individually wired and replaceable.
Figure 9

The switches are all individually wired and replaceable. To remove or replace a switch, squeeze together the clips on the top and bottom (red arrows) and pull the switch straight out from the plate. Installation is the reverse of removal.

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Page last updated: Tue 2/21/2017 02:41:02 AM