Performance Upgrades and Aftermarket Options For enthusiasts who modify their M8 with larger turbos or increased boost pressure, the stock bmw f90 transmission oil cooler might not suffice. The F90 chassis is complex, and accessing the cooler often requires lifting the vehicle and navigating around the exhaust components.
F90 Transmission Cooler Pressure Test: Diagnosing Overheating and Leaks
It is crucial to use OEM-spec or high-quality aftermarket hoses and clamps to prevent leaks. These issues occur because overheated fluid loses its lubricating properties, causing the transmission control module to intervene and protect the hardware by altering shift maps.
The additional thermal load generated by higher power figures can overwhelm the factory unit, leading to overheating during aggressive track days. Fluid leaks originating from the cooler lines or seals.
F90 Transmission Cooler Pressure Test: Diagnosing Overheating and Leaks
Maintaining fluid within the recommended temperature band preserves the viscosity necessary for proper lubrication and hydraulic pressure, which directly affects shift quality. As the gears shift and the torque converter engages, significant friction is generated, raising the fluid temperature.
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