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Replacing your Evaporator Temperature Sensor
 
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Pelican Technical Article:

Replacing your Evaporator Temperature Sensor

Steve Vernon

Time:

1 hour1 hr

Tab:

$35 to $75

Talent:

**

Tools:

T20 Torx, trim removal tool

Applicable Models:

VW GTI (2006-09)

Parts Required:

New evaporator temperature sensor

Hot Tip:

Be careful not to pinch wires when reinstalling

Performance Gain:

Working HVAC

Complementary Modification:

Clean the ducts

If you are having problems with your HVAC systems temperature regulation, there is a chance your evaporator temperature sensor is going bad. Changing out the sensor is a simple job, the only real issue is the cramped working space.

The sensor is located behind the side kick or trim panel in the passenger side foot well.

Begin by removing the two plastic screws holding the insulation piece above the passenger side foot well (red arrows, screws removed).
Figure 1

Begin by removing the two plastic screws holding the insulation piece above the passenger side foot well (red arrows, screws removed). The screws should only be installed hand tight. Do not use a screwdriver to tighten these down.

This photo illustrates the plastic retaining screws (red arrow, one shown).
Figure 2

This photo illustrates the plastic retaining screws (red arrow, one shown). The insulation piece they hold in is pretty flimsy so over tightening these screws will rip the insulation.

With the screws removed you can pull the insulation piece down from the dash and foot well (red arrow).
Figure 3

With the screws removed you can pull the insulation piece down from the dash and foot well (red arrow). It is just held in by the forward ledge and friction.

Use a trim removal tool and remove the small protective panel (red arrow) on the forward section of the kick or trim panel.
Figure 4

Use a trim removal tool and remove the small protective panel (red arrow) on the forward section of the kick or trim panel.

Use a T20 Torx driver and remove the single screw holding the trim panel in place (red arrow).
Figure 5

Use a T20 Torx driver and remove the single screw holding the trim panel in place (red arrow).

Using your trim removal tool gently push in towards the center console and unclip and lower the trim panel (red arrows).
Figure 6

Using your trim removal tool gently push in towards the center console and unclip and lower the trim panel (red arrows). The panel just clips in place. Lower and remove the panel.

The evaporator temperature sensor is located towards the front of the center console (red arrow).
Figure 7

The evaporator temperature sensor is located towards the front of the center console (red arrow). Leave the wiring harness attached and turn the sensor and harness 45 degrees counter clockwise. Pull the sensor down and out from its housing.

With the sensor out of the housing squeeze the two wiring harness clips (red arrows) together.
Figure 8

With the sensor out of the housing squeeze the two wiring harness clips (red arrows) together. Then separate the sensor from the harness.

Installation of the new sensor is the reverse of removal.
Figure 9

Installation of the new sensor is the reverse of removal. If you are reinstalling the sensor check the rubber grommet (red arrow) for rips or damage before reinstalling.

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Page last updated: Sat 12/3/2016 02:37:57 AM