How to: Install/Replace backup lights on Volkswagen Golf MK7 (2015+) USDM
This step-by-step tutorial will guide you through the process of either replacing the backup light bulb or upgrade to an aftermarket LED bulb.
In this tutorial we are going to swap out our factory 921 halogen bulbs to our GX3020 CANBUS model.
Recommended tools: Trim Remover / Pry Tool / Panel Remover Tool
Parts Used: GX3020 CANBUS LED (921 LED replacement bulb)
- Open the trunk hatch and there will be two covers.
1a. Locate trim indentation, and using your pry tool, pull away the panel to expose lamp housing.
2. Locate the backup light bulb socket. To remove socket, twist 1/4 turn counter-clockwise to unlock and carefully pull out the entire socket and bulb.
2a. Use gloves to prevent direct contact to the glass surface of the bulb. If the bulb hot, use a towel or heat resistant gloves to remove from the receptacle.
Here is a side by side view to compare the stock bulb and the LED replacement.
3. Install LED bulb onto the receptacle or socket and insert the entire unit back to the lamp housing.
Always check the aftermarket parts dimensions and make sure the housing allows you to fit the replacement. As you can see here, we were right on point in fitting the aftermarket LED replacement.
Test the bulb replacements before finalizing installation to ensure installation was done correctly. If there are no errors you can reverse the steps to put everything back together and begin troubleshooting.
Here is a photo showing a comparison to the incandescent bulb (left) versus the GX3020 (Right)
What we found about this installation:
During the installation we have learned that the backup light circuit only has to be complete (like a fuse) for the error code to be prevented. We installed a CANBUS error free bulb and a NON CANBUS bulb and both were compatible with no error messages being triggered.
We replaced the bulb holder (socket), without any bulbs installed, and only then did we encounter a bulb out error.
Volkswagen Golf equipped with an Entertainment System.
Volkswagen Golf’s without Entertainment System