2021 Mercedes-Benz GLE Reliability Report

Owners report several issues with the power train of the 2021 Mercedes-Benz GLE, notably involving sudden loss of power and engine shutdowns. Complaints frequently mention the vehicle losing propulsion without warning, often accompanied by failure messages related to the battery, transmission control unit, or 48-volt electrical system. These incidents typically occur while driving at speeds around 50-55 mph, posing significant safety risks due to the potential for collisions when the vehicle becomes inoperable in traffic. Some reports indicate these issues arise even in vehicles with relatively low mileage, such as 49,000 miles, and can result in costly repairs. Buyers should be aware of these patterns, particularly the risk of being stranded in traffic and the potential for high repair costs.

Owners of the 2021 Mercedes-Benz GLE frequently report issues related to water intrusion and visibility. Common symptoms include wet floor mats due to clogged sunroof drains, condensation leaking near the trunk release button, and windshield wiper fluid blockages caused by a design flaw in the strainer. These problems typically appear at mileages ranging from approximately 10,000 to 57,000 miles. Safety implications are noted in cases where visibility is impaired by non-functional wiper fluid systems. Potential buyers should be aware of the possible need for repairs related to these visibility issues, which may not be covered under warranty.

Owners of the 2021 Mercedes-Benz GLE frequently report issues with the vehicle's wipers and sunroof. Complaints indicate that the wipers are improperly installed, resulting in excessive noise and ineffective window cleaning. Dealers acknowledge this as a common issue but reportedly lack a solution. Additionally, there are reports of the sunroof spontaneously exploding while driving, with no apparent external cause. These incidents occur without warning and pose a risk of injury from falling glass, particularly if the sunroof shade is open. These issues are noted regardless of mileage, suggesting they may be inherent to the model year.

Owners of the 2021 Mercedes-Benz GLE report issues with the service brakes, including instances where the brakes fail to stop the vehicle effectively, accompanied by a loud grinding noise. One complaint involves a crash with four injuries, indicating a severe safety implication. In another instance, a vehicle nudges forward while idling, raising concerns about potential unexpected propulsion. These issues occur without warning lights on the dashboard, and one owner notes that the vehicle spends considerable time in the shop without resolution. These symptoms suggest that potential buyers should be aware of possible brake reliability concerns.

Owners of the 2021 Mercedes-Benz GLE report issues related to vehicle speed control, primarily involving sudden loss of acceleration and aggressive braking while using cruise control. One complaint describes a recurring problem where the vehicle enters a reduced-power state, despite multiple component replacements and inspections, including drivetrain control units and wheel speed sensors, over several months. Another owner reports that the car's advanced cruise control system misreads traffic signs, causing unexpected braking and speed adjustments, even after software updates. These incidents, occurring at various times and speeds, present potential safety concerns, especially in scenarios involving misinterpretation of speed limits or unexpected deceleration. Buyers considering this model should be aware of these reported issues, particularly regarding the vehicle's handling of speed control and cruise systems.

Owners of the 2021 Mercedes-Benz GLE report issues related to the vehicle's structure, specifically involving the sunroof and interior panels. Complaints frequently mention a loud, high-pitched noise from the sunroof when driving at high speeds or in windy conditions, potentially due to bad seals or misaligned components. Additionally, some owners describe a failure of the interior panels to illuminate, attributed to corrosion in the control module caused by a leak. These issues are reported around the 18,500-mile mark. While there are no reports of crashes or loss of control, the noise from the sunroof could potentially distract drivers from other safety cues.

Owners report issues with the forward collision avoidance system in the 2021 Mercedes-Benz GLE, particularly involving a recurring warning about the camera view being restricted. Complaints frequently mention this warning appearing without any visible camera obstruction, and some describe the automatic emergency braking (AEB) system as "unavailable" during these instances. These issues are noted without specific mileage details, and owners express frustration with the lack of resolution from service departments, who often state they cannot replicate the problem. While no crashes or loss of control are reported, the potential unavailability of AEB could have safety implications. Buyers should be aware of these reports when considering this model.