CSF Oil Cooler – BMW M135i

It’s no secret that the N55, when driven under high loads for sustained periods of time or in high ambient conditions, it has an engine oil temperature problem.
Owners often see temperatures in the region on 130°C and often going into the 140°C region if care isn’t taken. High operating temperatures can reduce the longevity of engine components and ultimately result in failures, sooner.
To give owners more engine cooling performance which can allow them to drive their car harder for longer in the same conditions, CSF has developed a unique oil cooler upgrade for the N55 equipped cars.
Product Information:
Innovative 2 core in-series design
Converted to an M2 style single-pass design with a high-pressure return line
High-density multi-louvred fin design for maximum surface area contact
Drop-in fit requiring zero modifications
Track tested and race project by Hittman Racing’s M235iR endurance race car
? 5°C-10°C reduction in Engine Oil Temperature depending on ambient and load conditions (9°F-18°F)
Replaces OEM # 17217618360
Fits N55 engined BMW M135i, M235i, M235iR, 335i, 435i incl. X-Drive models.