Audi SQ5 - 3.0 TFSI with MHEV plus technology

Ultra-modern combustion engines with MHEV plus

The new Audi Q5 SUV family is based on the Premium Platform Combustion (PPC), a platform architecture for conventionally powered vehicles with longitudinally installed combustion engines. All models in the Q5 series at market launch are equipped with the highly efficient MHEV plus technology.

The new MHEV plus system with 48-volt electrical system supports the combustion engine, reduces CO₂ emissions and at the same time increases performance and driving comfort. Purely electric maneuvering and parking are also possible to a limited extent.

The powertrain generator (PTG) generates an additional drive torque of up to 230 Newton meters and up to 18 kW (24 hp) of power. The 48-volt system also enables the use of an electrically driven air conditioning compressor. This offers the advantage that even when the engine is switched off – for example when coasting or at a red light – the air conditioning system continues to operate at full power and keeps the interior at a comfortable temperature.

The lithium-ion battery of the vehicles with MHEV plus is based on lithium iron phosphate chemistry (LFP) and has a storage capacity of 1.7 kilowatt hours. The main tasks of the belt starter generator are to start the engine and supply electrical energy to the battery. The new powertrain generator (PTG) enables electric driving, relieves the combustion engine, and helps reduce fuel consumption. When decelerating, the powertrain generator (TSG) feeds up to 25 kW of energy back into the battery (recuperation). The PPC enables gradual electrification in the form of mild hybrids. Later in the lifecycle of the new Audi Q5, plug-in hybrids with a large battery and external charging option will also follow.

03/2025