Why Your 2026 Mercedes GLE 450 Might Be Making That Noise

If you’ve recently upgraded to a 2026 Mercedes-Benz GLE 450, you might notice something your 2023 model never did: a faint ka-thunk sound from the rear when you come to a stop. Some owners describe it as something sliding around in the back. We’ve heard this concern from local drivers, and we want to clear it up.

According to Mercedes, that noise is normal. It comes from the cameras and sensors activating or deactivating as the car slows down. It’s not a mechanical issue, but we understand it can be annoying in a vehicle of this class. If it bothers you, stop by our shop and we’ll take a quick listen to confirm everything is as it should be.

Another common question: where did the car wash mode go? On the 2023 model, it was easy to find. In the 2026, it’s moved or hidden in a different menu. It wasn’t removed—just relocated. Check your infotainment settings under “Vehicle” or “Convenience,” or give us a call and we’ll walk you through it.

For owners of Mercedes, BMW, Audi, Porsche, VW, Volvo, Jaguar, Lexus, Toyota, and Honda vehicles—including hybrids—we know new models often come with quirks. That’s why we’re here. We’re a family-run shop in Boca Raton since 1989, specializing in European and Japanese cars. If something feels off or just different, bring it in.

We’ll inspect it, explain what’s going on, and put your mind at ease—no jargon, just straight talk.