SKU: 11913669691

Mosselman Oil Thermostat S55

Sale price$332.55 Regular price$369.50
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Description

Mosselman Oil Thermostat S55Mosselman Turbo Systems is a Dutch manufacturer of high quality performance parts designed specifically for use in BMW and MINI cars. Mosselman has been in the tuning business for over 40 years and the vast majority of their products has been designed, tested and manufactured in house. If you own a BMW or MINI, they are a specialist in these makes. PRODUCT INFORMATION THE NEXT LEVEL OF TEMPERATURE CONTROL The N54, N55 and S55 engines are no strangers

Mosselman Turbo Systems is a Dutch manufacturer of high-quality performance parts designed specifically for use in BMW and MINI cars. Mosselman has been in the tuning business for over 40 years and the vast majority of their products has been designed, tested and manufactured in-house. If you own a BMW or MINI, they are a specialist in these makes. 

PRODUCT INFORMATION

THE NEXT LEVEL OF TEMPERATURE CONTROL

The N54, N55 and S55 engines are no strangers to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat, especially for cars that are tuned. The standard oil temperature will reach around 120°C (250°F) with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85°C / 185°F) and will keep the temperature stable between 95 and 105°C (200 and 220°F), depending on the car model.

Installing the MSL 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 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.

Installation instructions come with kit, short install time.

Suitable for F87 M2 Competition Coupe, F80 M3 Sedan, F82 M4 Coupe and F83 M4 Convertible (including Competition, CS and GTS models). Also compatible with F30 ActiveHybrid 3.

MSL OIL THERMOSTAT

A highly recommended upgrade for N54, N55 and S55 engines.

  • 20°C Lower Than Stock
    Operating temperature 20°C lower than stock.
     
  • Rock Solid Housing
    CNC machined housing.
     
  • Real Thermostat
    Equipped with a real thermostat, not an always open solution (for use in hot and cold climates).
     
  • Quick Installation
    Takes only 30 minutes to install.



The Thermostat is plug-and-play and made out of a solid block of high-grade aluminum at Mosselman's own 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.

Additionally, to the thermostat, Mosselman have oil cooler kits for the 1-Series E8x and the 3-Series E9x. We advise the Oil Cooler Kit for cars that use the full performance of the car during track use. The kits are available as single or twin cooler kits. The single cooler kit replaces the OEM cooler on the right side of the car, the twin kit will add an extra cooler on the left side of the car.


EXPERT'S ADVICE:

"The S55 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL 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 MSL 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 aluminum at our own 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.

Note: The Oil Thermostat Installation kit prevents the Oil Thermostat from leaking and is highly recommended when installing the MSL Oil Thermostat. The kit includes 2 x O-ring for the oil hose and 1x rubber oil filter housing gasket. We advise to add it to your order."

MARK HENDRIKX - AUTOMOTIVE ENGINEER AT MOSSELMAN


FREQUENTLY ASKED QUESTIONS


Does the MSL Oil Thermostat have a real thermostat?
Yes, 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.

Do I need new gaskets for the installation?
Yes, we highly recommend replacing the gasket and 0-rings to prevent the thermostat from leaking. We have an installation kit available, it includes 2 x O-ring for the oil hose and 1x rubber oil filter housing gasket. We advise to add it to your order.

Installation Time
The thermostat is plug-and-play, which means that you don't have to make modifications to install the thermostat. Just remove the old one and replace it with our MLS Oil Thermostat. The installation time will be approximately 30 minutes.


Models
  • 2 Series / F87 M2 (2016-2021) / M2 Competition
  • 2 Series / F87 M2 (2016-2021) / M2 CS
  • 3 Series / F30 / F31 / F34 (2012-2018) / ActiveHybrid 3
  • 3 Series / F80 M3 (2014-2019) / M3
  • 3 Series / F80 M3 (2014-2019) / M3 Competition
  • 3 Series / F80 M3 (2014-2019) / M3 CS
  • 4 Series / F82 / F83 (2014-2019) / M4
  • 4 Series / F82 / F83 (2014-2019) / M4 Competition
  • 4 Series / F82 / F83 (2014-2019) / M4 CS
  • 4 Series / F82 / F83 (2014-2019) / M4 GTS


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 11913669691

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4.5 ★★★★★
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anita
Los Angeles, US
★★★★★ 5
Worked well on recent trip to Poland.
Style: Type E/F-Germany France
I stayed at 4 different hotels in Poland and there were no more than two outlets in each room. By using this, I was able to plug appliances and my phone and charger in at the same time. I thought the short cord might be a problem when using in the bathroom, but it was flexible enough to use there and on a desk.
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Reviewed in the United States on November 2, 2024
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Verified Purchase
CURRAMBERA
Birmingham, US
★★★★★ 5
Super convenient and useful
Style: Type E/F-Germany France
Very useful for when you travel to Europe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2025
S
Verified Purchase
Susan Esposito
Alexandria, US
★★★★★ 5
Great plug!
Style: Type E/F-Germany France
It worked very well in France ! It is something that I will use for years to come !
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Reviewed in the United States on May 29, 2025
S
Verified Purchase
Shopper00
Lowell, US
★★★★★ 1
US plugs didn’t work
Style: Type E/F-Germany France
Got all the way to Europe only to have the US plugs not work. Couldn't get any to work and the plugs did not go in. Only usb worked. Skip it. Now i have to lug it home for a refund.
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Reviewed in the United States on February 17, 2023
R
Verified Purchase
Rain
West Palm Beach, US
★★★★★ 5
Bought for my upcoming European Vocation
Style: Type E/F-Germany France, Style: Type E/F-Germany France
I need a European plugadapter to use in Cruise. It seems to be permitted in a Carnival cruise line. This things has a super short power cord, so that it can hang a bit below a European wall outlet. That's a good design so that you won't block the neighbouring outlet. it's lightweight so I can put it in my baggage. the USB C ports is an essentials as it seems that other USB ports are not allowed to use in Europe after a few years. Anyway, this things is recommeded
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2022

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