Mercedes-Benz is continuing its test programme for the upcoming EQC following an excursion to Sweden a few months ago. This time, the test mules were subjected to the burning summer heat in Spain, where temperatures can soar to as high as 50 degrees Celsius.

The EQC will be the first model to be introduced under the company’s EQ sub-brand and was first previewed by the Generation EQ during the 2016 Paris Motor Show. It is roughly the size of the current GLC, but comes with its own styling to better differentiate it as an all-electric model.

As you can see in these photos, the mules are wrapped with some rather flashy camouflage in order to mask certain cues. However, we know that the EQC will get its own headlights and taillights that are unique from those fitted on the GLC.

For now, Mercedes-Benz hasn’t provided any details about the powertrain used, but the Generation EQ packed two electric motors (one on each axle) to provide a total system output of 300 kW (402 hp) and 700 Nm of torque. This setup is powered by a 70 kWh battery pack positioned within the car’s floor, which provides a claimed range of up to 500 km on a single charge.

Testing in this extreme heat is important because while the battery “merely” loses power in the cold, high temperatures can potentially damage the battery. The EQC is therefore tested to ensure the battery’s cooling circuit is up to the task when encountering various scenarios.

Mercedes-Benz also focused on the car’s air-conditioning system – both during a journey and beforehand, as pre-climatisation is an important comfort factor. Individual components are also checked so technicians know where fine dust might be deposited throughout the car, and whether the sealing concept works in practice.

According to the carmaker, almost 200 prototypes and pre-series vehicles were built for the test programme, along with over 100 experts from different development departments. By the time the car makes its launch debut in 2019, the car would have undergone around four years of development.

GALLERY: Mercedes-Benz Generation EQ concept