MAHLE - Charge Air Coolers

Indirect charge air cooling systems use extremely compact coolers that are cooled by the coolant of the separate low-temperature cooling circuit. Since the low-temperature radiator has a large front surface and is swept by the cold cooling air flow, very low charge air temperatures can be achieved. Due to their superior efficiency (as compared to a charge air/air cooler), they can be designed with very compact dimensions and mounted onto the engine. In transient driving conditions, they provide for a much more stable intake air temperature and thus help reduce fuel consumption.