Waste heat from exhaust gas is re-circulated to the cooling circuit as modern engines work so efficiently that the actual waste heat of the engine itself is no longer sufficient.
Adjustment control of the air-fuel mixture
High requirements regarding evenness and surface quality (PCB surfaces)
Toothed belt tighteners for camshaft control units
Housing for oil pump to ensure centralized oil supply within the engine
Seating of the stator package in electric motors
Housing for camshaft adjusting mechanism to ensure an optimized ratio between performance, torque, emission and fuel consumption.