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Disable Volkswagen Jetta Daylight Running Lights

The later Volkswagen Jettas come with headlights always on by default; this feature is called daylight running lights (DRL). Unfortunately, DRL lowers the lifetime of the headlights and lowers the gas mileage (just a wee bit). This hack will disable the DRL only and leave the rest of the headlight functions alone. (Click on the picture to get a larger version.)

1. Push the light switch (just the smaller inside circle part) in and turn clockwise. This will unlock it and allow it to pop out. The outer circle is not moveable. jettadrl1
2. Once the switch is unlocked, you can simply pull it out and disconnect the wiring plug. jettadrl2
3. Once the wiring harness is loose, flip it around so you can see the wires going into the back. jettadrl3
4. The wire you want to remove is #3 (third from the left). Just pull out the #3 wire and tape the metal end of the loose wire up (you can use transparent tape) to prevent electrical shorts. jettadrl4
5. Finally, rebuild the switch in the reverse order.

Note: This info is replicated from another website with my own comments added.

5 Comments

  1. […] admin wrote a fantastic post today on “Disable Volkswagen Jetta Daylight Running Lights”Here’s ONLY a quick extractThe later Volkswagen Jettas come with headlights always on by default; this feature is called daylight running lights (DRL). Unfortunately, DRL lowers the lifetime of the headlights and lowers the gas mileage (just a wee bit). … […]

  2. bokbok

    thanks just did to my jetta 2003. it worked!

  3. Mateo

    DO NOT DO THIS! This mod was probably written by a troll. If you cut the third wire from the left which should be a big red wire it disables the dashboard lights.

  4. Mateo

    Okay, ignore the above comment, this guy isn’t a troll, he just isn’t very thorough in his explanations. You have to flip the terminal upside down and then it is the third wire. Make sure it is the wire that matches with the port labeled TFL on the switch.

    • Chanh

      Thanks for the clarification, Mateo. Unfortunately I don’t have the Jetta anymore, otherwise I would pull it out to see exactly how to identify the correct wire to disconnect. Hopefully no harm was done.

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