Reasons why the 2012 VW Jetta TDI sunroof won’t close?

The sunroof on a “2012 VW Jetta TDI sunroof won t close” due to several reasons. This article will list a detailed explanation regarding the various problems which can lead to a sunroof that isn’t closing. In addition, we will also explain how to close the sunroof manually if it doesn’t close on your VW Jetta TDI.

The sunroof on the VW Jetta is a luxury feature that allows the passengers to go out and enjoy the weather outside of the car. The sunroof gives the passengers freedom to enjoy the views around the car. But, it also increases the natural light inside the cabin. Thus making the cabin feel more airy and lively. Besides this, the sunroof also acts as a door used to exit the car in case of an emergency. Thus it is also a part of a passive safety feature on the car.

The working of the sunroof is pretty simple. There are three main components in the sunroof responsible for its working. These three parts are the switch, the electric motor, and the mechanical mechanism. For example, when the passenger inside the car decides to open the sunroof, they need to press the two-way switch backwards. Moving the switch in the backward direction completes the electrical motor circuit, and it then instructs the mechanical mechanism to move the sunroof. Similarly, when the switch moves forward, the motor rotates in the opposite direction, and the sunroof closes.

However, sometimes when the sunroof working system gets faulty, the sunroof won’t close. THe main reasons behind a sunroof that is not closing are mentioned below.

Reasons behind why the 2012 VW Jetta TDI sunroof won’t close

The reasons behind the sunroof not a closing problem on a VW Jetta are as follows:-

  • Clogging of the sunroof track on which the roof moves
  • Failure in the sunroof switch 
  • The blown fuse of the sunroof motor circuit.
  • Damaged sunroof motor.

Clogging of the sunroof track on which the roof moves

The sunroof of a vehicle moves on tracks. These tracks are present on the roof of the vehicle. Hence there are high chances that the tracks get clogged due to debris. Clogging of the tracks will hinder the movement of the sunroof.

Failure in the sunroof switch 

The sunroof switch is responsible for supplying the electric current to the sunroof motor. The sunroof switch consists of metal contacts that might stick to each other if there is rusting or moisture on them. Thus the failure of the switch will cause the sunroof to operate.

The blown fuse of the sunroof motor circuit.

The electrical motor in the sunroof circuit consists of a fuse which is a safeguard to prevent the motor from receiving high voltage. Thus, if there is a fault in the electrical circuit of the sunroof, then the fuse blows away and prevents the motor from suffering damage.

Damaged sunroof motor.

The sunroof motor consists of gears responsible for the movement of the sunroof. If the sunroof motor is damaged, then the sunroof won’t close or open on any vehicle automatically. You then need to close the sunroof by manual technique.

Closing the 2012 VW Jetta TDI sunroof manually.

  • To close the sunroof manually on a VW Jetta, you need some basic tools such as a screwdriver.
  • The 2014 VW Jetta has a panel attached to the internal rear-view mirror. This panel is attached with the help of a screw to the vehicle. 
  • To access the sunroof motor, a person needs to remove these screws. Once the screws are removed, the panel is pulled out.
  • Once the panel is pulled out, you need to detach the plastic switches connected to the electric motor and switches. In total, there will be three plugs that are connected to the electric motor. Removing the plugs will completely detach the sunroof plastic panel.
  • After removing the plastic panel, the sunroof electric motor will be visible. On the sunroof motor, there will be a bolt that is turned with the help of an Allen key.
  • This bolt will be responsible for the forward and backward movement of the sunroof. Once the bolt is rotated with the help of the Allen key in the clockwise direction, the sunroof starts to close.
  • Manually closing the sunroof will take plenty of effort because rotating the sunroof bolt will slowly move the sunroof. 
  • Once the sunroof closes, take the vehicle to a mechanic and get the sunroof fixed.

Conclusion

In this article, we have explained the causes of the “2012 VW Jetta TDI sunroof closing” problem. The sunroof not closing issue is a problem that arises due to the lack of maintenance of the mechanism. Thus, if you are stuck in a situation where the sunroof of your VW Jetta isn’t closing, you can follow the steps mentioned in this article for manually closing the sunroof on Jetta.

Frequently Asked Questions (FAQs): 2012 VW Jetta TDI sunroof won t close. 

How do you fix a sunroof that won’t close?

  • Remove the sunroof glass to access the components.
  • Lift the sunroof cable as it might slide into the path of guides and lift arm.
  • Make sure that the sunroof motor is working properly 
  • Check the wiring of the sunroof housing.

Do the VW sunroof leak?

It is believed that the plastic channel present around the VW’s sunroof can crack. The crack in the plastic seal can cause the water to seep through, leading to a leak.

How do I know if the sunroof is clogged?

To test whether the sunroof is clogged, you need to pour a water bottle over the closed sunroof and look for any water that comes out from the bottom of the car. 

How do you seal the sunroof?

To seal the sunroof, you need to get a couple of windshield sealers. Then you need to open the sunroof and clean the surface out well. Then fill the sealer in the gun and put it on the gaps you see.

References

  1. https://www.youtube.com/watch?v=yavmbvgFOw8
  2. https://www.youtube.com/watch?v=5U2GJsMttv8
  3. https://www.vwvortex.com/threads/seal-the-panoramic-sunroof-permanently.8983801/?id=8983801&goto=newpost
  4. https://www.vwvortex.com/threads/seal-the-panoramic-sunroof-permanently.8983801/?id=8983801&goto=newpost

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