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Pelican Technical Article:

Blower Motor Regulator Replacement

Jared Fenton

Time:

1 hour1 hr

Tab:

$20

Talent:

***

Tools:

5.5mm driver, flathead screwdriver

Applicable Models:

VW Jetta GL (1999-05)
VW Jetta GLS (1999-05)
VW Jetta Wolfsburg (1999)

Parts Required:

Blower motor regulator

Hot Tip:

Inspect the inside of the fan housing for dirt and/or debris

Performance Gain:

Better working HVAC system

Complementary Modification:

Replace blower motor

One annoying problem that occurs in the Mk4 Jetta is a situation where the climate control fan suddenly starts working intermittently or only at one speed. The problem is usually the blower motor regulator. The regulator controls the fan speed of the blower motor and can fail after many years of use. Thankfully, replacing the blower motor regulator is an easy fix, usually taking no more than an hour. Keep in mind that you will need a 5.5mm or 7/32" socket to remove the fan from the housing.

Replacing the blower regulator and fan requires removing the glove box from the car. Please see our article on glove box removal for more information.

From underneath the glove box, loosen and remove the plastic tab (green arrow) using a flathead screwdriver.
Figure 1

From underneath the glove box, loosen and remove the plastic tab (green arrow) using a flathead screwdriver. Now pull the foam cover (yellow arrow) off the underside. Now remove the glove box (see our article on Glove Box Removal for more information.

Pull back the insulation fabric (green arrow) covering the fan housing.
Figure 2

Pull back the insulation fabric (green arrow) covering the fan housing.

The blower motor regulator is located on the bottom of the fan housing (green arrow).
Figure 3

The blower motor regulator is located on the bottom of the fan housing (green arrow).

Squeeze the tabs (green arrows) on the electrical connector going to the regulator and pull it out.
Figure 4

Squeeze the tabs (green arrows) on the electrical connector going to the regulator and pull it out. Now loosen and remove the 5.5mm screw (yellow arrow) holding the regulator to the fan housing.

Now loosen and remove the remaining 5.
Figure 5

Now loosen and remove the remaining 5.5mm screw and pull the regulator down off the fan housing.

And here's the final result with the regulator removed from the car.
Figure 6

And here's the final result with the regulator removed from the car. Installing the new regulator is the reverse order of removal.


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Page last updated: Wed 12/7/2016 02:55:25 AM