Engine thermal management

The term "thermal management" refers to closed-loop control
of the coolant circuits for instantaneous adaptation to current operating conditions. The ultimate results include a reduction
of up to 5% in fuel consumption along with lower exhaust emissions. Yet another asset is enhanced comfort, as
exemplified by the prompter response of the interior
heating system.

The thermo-management system adapts the cooling system's capacity in line with the cooling requirements dictated by the particular engine operating mode. In other words, the coolant
flow can be reduced during the engine's warm-up phase.
More rapid heat-up of the engine leads to the lube-oil viscosity dropping all the faster, so that fuel consumption is reduced particularly at idle and in the part-load range. At the same time, climate control inside the vehicle is optimized.