### Efficient thermal architecture that reduces the electricity requirement.

The ingenious thermal architecture of the EQA works very efficiently: the heat pump transports the heat from a low to a higher temperature level. In this way, "cold thermal energy" which often occurs in particular in an electric vehicle can be rendered usable for heating the interior. Overview of how the heat pump of the EQA works:

• Efficient reheating with air recirculation: a high proportion of recirculated air means that less (fresh) air has to be heated. To reduce the tendency of the windows to fog up, the vehicle cools the recirculating air, thereby removing moisture. The heat extracted is fed back into the interior via the water-cooled condenser and the heat exchanger – in other words, the heat is "recycled".
• Use of the waste heat from the electric powertrain.
• Use of the waste heat from the high-voltage battery: if the temperature of the battery is above a threshold, the waste heat can be used to heat the interior.