Improve the reliability of your BMW S55 engine with the Mosselman Oil Thermostat. The OEM BMW oil thermostat will reach around 120 degrees Celsius with a normal driving style. The Mosselman Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius, depending on the car model. Installing the Mosselman thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.

The Thermostat is plug-and-play and made out of a solid block of high-grade aluminium at Mosselman’s facility. It is equipped with a real thermostat, not an always open solution. The oil will still reach the operating temperature at the same time as a stock thermostat.

Key Features
– 20°C Lower Than Stock – Operating temperature 20°C lower than stock.
– Real Thermostat – Equipped with a real thermostat, not an always open solution. (for use in hot and cold climates)
– Rock Solid Housing – Made out of a solid block of high-grade aluminium.
Quick Installation – Takes only 30 minutes to install.

Compactable with
BMW F80 M3 Saloon (2014-2019)
BMW F82 M4 Coupe (2014-2020)
BMW F83 M4 Cabriolet (2014-2020)
BMW F87 M2 Competition Coupe (2018-2021)