2023 Mercedes-Benz GLS-Class Coolant: Specs & Service

The 2023 Mercedes-Benz GLS-Class is a premium all-wheel-drive SUV with 3.0- to 4.0-liter engines, premium unleaded fuel requirements, and towing capability up to 7,700 pounds. At Mercedes-Benz of Draper in Draper, UT, coolant service helps protect the cooling system that manages heat during everyday driving and heavier demands. The service includes draining and refilling the coolant with the type and concentration the manufacturer specifies, pressure-testing the system for leaks, and inspecting key components around the cooling system. Coolant additives deplete over time even while the fluid continues to circulate and cool, so a condition check can identify whether service is due or whether a leak needs repair. Schedule cooling system service for your 2023 Mercedes-Benz GLS-Class at Mercedes-Benz of Draper.

What a coolant service on a 2023 Mercedes-Benz GLS-Class involves

Coolant service begins with draining the existing coolant from the 2023 Mercedes-Benz GLS-Class. The system is then refilled with the coolant type and concentration the manufacturer specifies for this vehicle. Using the correct formula matters because coolant products are not interchangeable, and the cooling system depends on the intended additive package for protection as well as heat transfer.

After the refill, the system is pressure tested for leaks. This can help distinguish coolant that has reached the end of its useful condition from a system that is losing fluid through a leak. The inspection also covers the hoses, cap, radiator and water pump area. Together, these steps assess both the coolant and the hardware that contains and circulates it.

If the temperature gauge has been running higher than usual, the reservoir looks low, or you notice a sweet smell or a puddle under the front of the SUV, coolant service should include attention to the cause. Schedule service at Mercedes-Benz of Draper for a cooling-system condition and pressure test.

Why coolant condition matters on a 2023 Mercedes-Benz GLS-Class

Coolant does more than carry heat away from the engine in a 2023 Mercedes-Benz GLS-Class. Its additive package helps protect aluminum and gasket surfaces inside the cooling system from corrosion and related deterioration. Those additives deplete on their own timetable, even while the fluid may still look like coolant and continue to move heat normally.

That is why appearance alone does not establish whether coolant remains protective. Condition is judged through the manufacturer's maintenance guidance and testing during a service visit. A cloudy, rusty or low reservoir can be a visible warning, but clean-looking coolant can still require attention when its protective additives have diminished.

The GLS-Class range uses 6- to 8-cylinder engines with 3.0- to 4.0-liter displacement, so managing heat is important across its powertrain range. A pressure test also matters because a falling coolant level points toward a leak rather than ordinary consumption. Book service to separate coolant condition from a repair need.

Cooling system service at Mercedes-Benz of Draper

Mercedes-Benz of Draper provides coolant service for the 2023 Mercedes-Benz GLS-Class at 11548 Lone Peak Parkway, Draper, UT 84020. The visit focuses on practical answers: whether the coolant needs to be drained and refilled, whether the system holds pressure, and whether the hoses, cap, radiator and water pump area show signs that require further attention.

That approach helps connect what a driver notices with what the cooling system needs. A higher-than-usual temperature gauge, sweet odor, puddle beneath the front of the SUV, or low, rusty or cloudy coolant deserves inspection rather than a simple top-off. The system should be checked cold; a cooling system can remain hot and pressurized after operation.

To arrange service, call 385-425-5461 or schedule service online. You can also review service specials before booking your 2023 Mercedes-Benz GLS-Class coolant appointment.