How to Replace the Blower Fan on a 1999 Passat

Written by mike aguilar
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The heating and air conditioning system on your 1999 Volkswagen Passat uses a blower motor to pull air from the outside, and passes it over the heater core for heating or the heat exchanger when in air conditioning mode. When this system no longer blows air into the passenger compartment, you need to find out why. If you can hear the blower motor running when the system is turned on, there is a problem with the valves and controls. If the switch is in the "on" position, but there is no sound from the motor, the blower motor may need to be replaced.

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Things you need

  • Philips screwdriver
  • Set of nut drivers
  • Replacement blower motor

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  1. 1

    Remove the glove box from the passenger side of the dashboard. The glove box is held to the dash bezel using small screws with either Philips heads or small hex-heads. Turn these screws counterclockwise and remove the glove box.

  2. 2

    Remove the lower knee below the glove box, if your car is equipped with one. Remove the bolts or screws by turning them counterclockwise with the appropriate tool. This may be either a screwdriver or nut driver.

  3. 3

    Disconnect the blower electrical supply cable. This is accomplished by squeezing the connector to disengage a locking latch and pulling the connector apart.

  4. 4

    Remove the blower from the air box. Rotate the screws securing the motor to the box by turning them counterclockwise with the appropriate nut driver. Set the old blower motor aside.

  5. 5

    Remove any debris and obstructions from the blower motor mounting area and air box.

  6. 6

    Hold the new blower motor in place and align it properly with the mounting holes. Insert the retaining screws and turn them clockwise by hand until finger tight. Tighten these screws with the nut driver.

  7. 7

    Connect the blower motor power cables. Push the two ends of the connector together firmly until you hear the latch engage with a 'clicking' sound.

  8. 8

    Reinstall the knee bar. If equipped. Hold the bar in place and insert the retaining screws/bolts, turning them clockwise until finger-tight. Tighten these bolts with a nut driver or screwdriver.

  9. 9

    Reinstall the glove box. Hold the unit in place and insert all of the bolts and screws you removed in step 1, and turn them clockwise by hand. Tighten these bolts and screws with a screwdriver or nut driver.

Tips and warnings

  • Some manuals tell you to disconnect the battery. This is not needed.

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