Cover Image for Prototype Testing of the Mercedes-Benz GLC with EQ Technology: Enhanced by Cooling.
Tue Mar 04 2025

Prototype Testing of the Mercedes-Benz GLC with EQ Technology: Enhanced by Cooling.

Mercedes is launching important new electric vehicle models, and the GLC is expected to be a big success.

Before a new car hits the market, it undergoes months and even years of rigorous testing in various locations around the world. In this process, Sweden plays a crucial role, as its cold northern expanses provide the ideal conditions of sub-zero temperatures and icy surfaces. Recently, I had the opportunity to test a new electric vehicle from Mercedes-Benz: the GLC with EQ technology, a fully electric version of one of the brand's most popular SUVs. Equipped with new batteries, motors, and a higher-voltage charging system, it represents a significant advance compared to other electric vehicles from the company, such as the EQE SUV.

I headed to Sweden with the question of how this new model performs on the road. Despite having over 20 years of experience driving on ice and snow, when behind the wheel of such a valuable prototype, I tend to be more cautious. However, once I got behind the wheel of the electric GLC, I quickly took the plunge, accelerating confidently down a frozen track surrounded by a cluster of fir trees. This instant reaction was made possible by the capability of the GLC's traction and stability control systems. In situations where other vehicles would reduce power, this model proved to be more adaptable, managing power delivery to avoid costly accidents in the snow.

When I found good traction, the GLC responded with remarkable quickness, achieving maximum accelerations thanks to its dual-motor, all-wheel-drive system. These motors are part of Mercedes-Benz's new platform, MB.EA, which uses a type of permanent magnets, including a front motor that physically disconnects to reduce resistance when not needed.

The vehicle also features a new heat pump capable of absorbing thermal energy from the ambient air and the car's internal systems. According to Mercedes engineers, this pump heats the cabin twice as fast while consuming half the energy compared to their previous electric models. Despite the temperatures well below zero, the interior of the GLC was quite cozy.

However, I couldn’t evaluate the range under these conditions since it was a pre-production prototype. Still, I expect a significant improvement over the 307 kilometers that the EQE SUV can travel on a single charge. The GLC's batteries employ a revised chemistry that minimizes the use of problematic cobalt and enhances energy density, resulting in greater performance per kilogram of battery.

Another aspect that contributes to range is the regenerative braking system, which includes different levels of regeneration and a one-pedal mode that brings the SUV to a complete stop. However, pressing the brake pedal feels different; it does not provide hydraulic feedback but instead simulated resistance, similar to a racing simulator pedal set. While this may feel unusual, this feature ensures a consistently smooth driving experience. The vehicle determines how much of the desired deceleration can be achieved through regenerative power and, when necessary, smoothly engages the physical brakes.

In practical terms, this system works exceptionally well, delivering smooth and precise stopping without the abruptness that sudden braking often causes in electric vehicles. While the lack of feedback when activating the ABS can be disappointing, it is argued that this prevents some drivers from lifting their foot off the pedal.

Accelerating the GLC is assertive, which will keep performance enthusiasts intrigued. However, I cannot thoroughly assess its handling due to the low-traction conditions I encountered. The optional air suspension performed excellently in adverse conditions, absorbing road irregularities and even raising the suspension when snow and ice required more clearance. On smoother roads, the GLC offered the quietness expected from a luxury electric car, although the noise from the aggressive snow tires was noticeable.

Uncertainty remains regarding its price and availability, as the GLC is expected to make its formal debut in Germany in September, predicting production that won't begin until well into 2026. Mercedes-Benz has yet to define a price, and given the current context, it's difficult to predict how incentives and tariffs will affect electric vehicles, including those manufactured in the U.S.

If a competitive price is set and the final design is appealing without the camouflage, it is very likely to become a success. I am eager to drive it again and get even more accustomed to its unique handling.