Lot 527797-AC: 2021 Mercedes-Benz AMG GLS63 4MATIC+

Hey there! Great question - let me break down the common issues I’ve seen with the X167 generation AMG GLS63 (which started in 2021):

Air Suspension (AIRMATIC) - This is probably the biggest watch item. The air struts can develop pressure leaks over time, solenoid valves can fail, and the compressor can weaken. Owners report rattling noises from suspension components, and at 57k miles on the one you’re looking at, you may be approaching the mileage where air suspension components typically need attention (~50k-70k miles is common for air suspension service).

MBUX Infotainment - The big touchscreen and digital dashes are fancy, but owners report screen freezing, lagging, Bluetooth connectivity dropping, and occasional “system inoperative” errors. Usually just needs a software update from the dealer to fix.

Electrical Sensors - Some owners have experienced over-sensitive or malfunctioning sensors that can trigger unexpected warnings or even cause the car to stop unexpectedly. One owner on the forums described their 2021 as giving them “nightmare” issues with sensors going off for everything.

M177 Engine (4.0L V8 Biturbo) - Generally this is a solid powerplant, but early production 2021 models had some teething issues. Keep an eye on any unusual engine behavior. There was also a recall for rear window trim potentially detaching on 2022-2023 models.

The good news? Most of these are software or maintenance items rather than catastrophic failures. Given that this one has just under 58k miles and is listed as “Original & Highly Original,” I’d definitely recommend having a Mercedes specialist or dealer inspect the air suspension carefully before purchase - that’s your biggest potential expense down the road.

Want me to pull up some comps to see how this $67,995 price looks compared to others in the market? Or need help finding similar GLS63s with lower miles?