Expert's advice:
The BMW 3-Series N54 and N55 engines are known to experience oil cooling challenges, which is why we developed the Mosselman Oil Cooler Kits. The high-capacity cooler ensures that BMW 3-Series models with N54 and N55 engines maintain optimal temperatures, even during demanding driving conditions.
The Mosselman Single Oil Cooler Kit includes a Setrab 19-row oil cooler, a stainless steel Mosselman bracket, an AN8 oil adapter available in red or grey, and a complete hose kit. We strongly recommend pairing the cooler kit with the Mosselman Oil Thermostat -sold separately- for optimal performance and reliability. Optionaly, you can add the Mosselman Twin Oil Cooler Extension Kit that adds an additional cooler on the left side of the car, allowing you to upgrade a single cooler setup to a twin cooler system. It comes with a Setrab 19-row cooler, a pre-assembled bracket, mounting hardware, and a hose kit. The twin cooler configuration is recommended for vehicles operating in very hot climates or for cars that are frequently used on the track.
Note: This item is not "plug and play". You will need to make some adjustments to the car to fit the bigger oil cooler and bracket. Installation time is approximately 3 hours. If you choose the optional extension kit you need additional OEM products: oil cooler front air duct (left), wheel arch air duct (left), inside wheel arch for the auxiliary cooler (left). With the extension kit, the installation time is approximately 4 hours.
Mark Hendrikx - Automotive engineer at Mosselman