Description
Take your BMW’s temperature management to the next level with the Mosselman (MSL) Oil Thermostat, engineered specifically for BMW N54 and N55 engines. Known for their performance potential, these engines also struggle with high oil temperatures under spirited driving—making the MSL Thermostat an essential upgrade for reliability and performance.
The standard BMW oil thermostat typically reaches around 120°C during normal driving. The MSL Oil Thermostat opens at a lower temperature (85°C) and maintains oil temperatures between 95°C and 105°C, depending on the vehicle model. This ensures a cooler, more consistent operating range for both stock and tuned cars.
Key Features:
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20°C Lower Than Stock: Keeps oil temperatures approximately 20°C cooler than the factory thermostat.
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Real Thermostat Design: Equipped with a true thermostat—not an always-open bypass—ensuring proper operation in both hot and cold climates.
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Rock-Solid CNC Housing: Machined from a solid block of high-grade aluminum for durability and precision.
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Plug-and-Play Installation: Direct-fit design allows for quick installation, typically completed in just 30 minutes.
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Engine Reliability: Reduces oil degradation and thermal stress, extending engine life and performance stability.
Fitment:
MSL Oil Thermostat for BMW N54 Engines (2006–2013):
- BMW 135i (E82)
- BMW 1M Coupe (E82)
- BMW 335i (E90, E91, E92, E93)
- BMW Z4 35i / 35is / LCI 35i (E89)
MSL Oil Thermostat for BMW N55 Engines (2011–2018):
- BMW M135i (F20, F21)
- BMW M235i (F22)
- BMW M2 (F87)
- BMW 335i (F30, F31, F34 GT)
- BMW 435i (F32, F33, F36 Gran Coupe)
Performance Benefits:
- Maintains consistent oil temperature between 95°C–105°C
- Prevents overheating during spirited or track driving
- Enhances oil longevity and overall engine stability
- Essential for tuned or high-performance BMWs
Recommended Pairing:
For drivers who demand maximum cooling efficiency, Mosselman recommends combining the MSL Oil Thermostat with their Mosselman Oil Cooler Kits. Available for the BMW 1-Series E8x and 3-Series E9x, these kits are offered in single or twin cooler configurations—ideal for vehicles that see regular track use or heavy performance driving.
Brand Assurance:
Proudly developed and manufactured by Mosselman Turbo Systems, every MSL Oil Thermostat is built in-house from top-grade materials. Trusted by enthusiasts and tuners worldwide, Mosselman delivers precision-engineered components designed to elevate performance, reliability, and cooling efficiency for BMW engines.
