My 2025 Mercedes GLE’s Front is Completely Transformed After I Put Backlighting Behind The Grille With an Illuminated Star Emblem

Transform your 2025 Mercedes GLE with a stunning illuminated star and custom backlighting, see the step-by-step process, expert insights, and essential tips to make your ride stand out while keeping it factory-safe.

When it comes to personalizing a vehicle, lighting upgrades can make a big difference. Recently, I came across a post in the "Mercedes GLE and GLE AMG North America Owners" Facebook group by Kevin Shwab, who showcased his latest modification on his brand-new 2025 Mercedes GLE. He installed an illuminated Mercedes-Benz star and custom backlighting behind the grille, a subtle yet striking upgrade.

Kevin explained, "Brand new 2025! Since I was swapping my grille and had to have the bumper off anyway, I added an illuminated star and some backlighting behind the 'X' support bars while I was in there. I tapped power from the switched bus bar empty fuse under the hood. The website says this empty spot #128 is for an engine electronics fuse, but mine was empty, and the voltmeter confirmed it was switched power with the key on/off."

Step-by-Step Installation Process

For those looking to replicate this modification, here’s a breakdown of the installation process:

1. Removing the Grille and Bumper: Since grille swaps require removing the bumper, this was the first step. Mercedes-Benz vehicles are equipped with multiple sensors, so handling the wiring with care is essential.
2. Mounting the Illuminated Star: The illuminated emblem replaces the standard Mercedes-Benz badge and connects through an OEM-compatible wiring harness.
3. Installing Backlighting: LED strips were placed behind the "X" support bars, ensuring the wires were neatly routed and secured for a clean look.
4. Powering the System: Instead of splicing into existing wires, Kevin found an empty slot (#128) on the switched bus bar. This provided power only when the ignition was on, preventing unnecessary battery drain.
5. Final Assembly and Testing: Once the wiring was confirmed to be functional, the bumper and grille were reinstalled, and a final test ensured everything worked seamlessly.

Concerns and Community Feedback

Kevin’s post generated a lot of interest, with other GLE owners asking questions about warranty concerns and installation challenges.

• Roses Senior asked: "I want to do this but I don't want to destroy my warranty or cause any electrical problems. What issues might I run into?"
  • Generally, this type of modification shouldn’t void a warranty, but incorrect wiring could lead to electrical faults. Consulting a Mercedes-Benz dealership before making modifications is always a good idea.
• Dusty Carter asked: "I have a '19 GLE 63S and want to swap the grille. A shop quoted me for recalibrating the sensors. Did you manage to keep yours connected while swapping the grille?"
  • Some sensors may require recalibration, especially if they are part of the adaptive cruise control system. If they remain connected during the process, recalibration might not be needed, but it's always best to check with a professional.

Related Upgrades for Your GLE

One of the biggest updates to the GLE lineup is how Mercedes balances performance, luxury, and technology. This article on the AMG GLE 53 covers the latest advancements in styling, muscle, and tech, making it a great read for those considering performance modifications. The AMG GLE 53 Coupe is particularly impressive, blending sportiness with a luxurious touch. If you’re looking for inspiration on how to modify your own GLE, this article offers some fantastic insights into what makes the new AMG GLE 53 stand out.

Electrical modifications are always a concern, especially when recalls happen. Recently, Mercedes-Benz recalled over 116,000 GLE and GLS models due to fire risks. Before making any changes to your electrical system, it's crucial to stay informed about recalls to avoid potential hazards. This particular recall was due to a faulty connection under the passenger seat, which could cause overheating and pose a fire risk. If you're working on electrical modifications, it's always wise to double-check any potential risks associated with your model.

Another key feature to consider is the 48-volt mild-hybrid system found in some GLE models. This system plays a crucial role in performance and fuel efficiency, but it can also impact aftermarket electrical upgrades. If you're interested in learning more, this article explains the 48-volt tech and why it's unique in the market. The 48-volt system helps optimize performance by allowing smooth start-stop functionality and providing an extra boost in acceleration, but it also means owners need to be extra cautious when making electrical modifications.

Additionally, Mercedes-Benz vehicles have had some issues with their start-stop functionality, particularly in earlier models. This report on the GLE 450 start-stop issue sheds light on a recall regarding this system. If you are making electrical modifications, be mindful of how changes could interact with factory systems like these.

The Takeaway: Personalizing Your Vehicle the Right Way

Adding modifications like an illuminated star and backlighting can enhance the visual appeal of your Mercedes GLE. However, careful planning is essential to ensure compatibility, prevent warranty issues, and maintain the vehicle's reliability. If in doubt, consult an expert to ensure the installation is done correctly.

Customizing your vehicle should be an enjoyable and rewarding experience. Whether it’s upgrading the grille, adding ambient lighting, or enhancing performance, every modification should align with both your personal preferences and the technical limitations of the car. When done properly, mods like these can give your GLE a unique identity while preserving its premium feel and functionality.

Join the Conversation!

1. Have you customized your Mercedes-Benz GLE? Share your modifications in the comments!
2. Would you install an illuminated star on your vehicle? 

Please let us know why or why not.

Image source: From Kevin's post on Facebook, linked and referenced above.

Narek Hareyan is a young automotive journalist with experience in a golf cart dealership and an interest in the automotive industry. Follow Narek on X for daily news coverage about cars.