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Mark Hendrikx - Automotive engineer at Mosselman

Expert's advice:

The E-series N54 and N55 engines are no strangers to oil cooling problems. That’s why we have included the MSL Oil Thermostat in the Oil Cooler Kit. Along with the higher capacity oil coolers, the improved thermostat ensures that E-series models equipped with N54 and N55 engines stay cool, even during heated conditions.

The MSL Oil Cooler Kits are available as single or twin cooler kits. The single cooler kit replaces the OEM cooler on the right side of the car. Like all of our products, the kit is plug and play and comes with the MSL Oil Thermostat, a Setrab 19 row oil cooler, a stainless MSL bracket, and a Goodridge hose kit. 

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 3.5 hours.

Mark Hendrikx - Automotive engineer at Mosselman



The next level of temperature control

  • Lower Operating Temperatures
    Use of the MSL Oil Cooler Kit, which includes our Thermostat, will result in an operating temperature
    of around 20ºC lower than stock, whatever you're doing.
  • Essential For Tuners
    Keeps your engine cool and safe.
  • Rock Solid Housing
    The Thermostat, made out of a solid block of high-grade aluminum, is made
    with a CNC machine at our own facility.
Read more about the oil thermostat

MOSSELMAN tuning experiences

  • Anders M.

    With Mosselmans' performance package I exceeded even more than the company advertised on their website! The information sharing process was easy and hassle-free. Excellent customer service from Leon and his team!

    Anders M.

  • Thom H.

    Mosselman tuned my BMW 318d today. What a result, it became a completely different car! Very professional company and friendly staff. This was my second car here and again they have exceeded my expectations. Thanks!

    Thom H.

  • Rob M.

    Very happy with my improved car, the car reacts better on the throttle and is very direct. Also, the exhaust sounds better!

    Rob M.

  • Bas H.

    Visited Mosselman on May 24th for the chip tuning of my 135i, great result! The adjustment is great, when will you post the photo on FB :)?

    Bas H.

  • Romke B.

    After 1,5 years still very happy with my iTronic. By far the best upgrade I could have done with my BMW 340i.

    Romke B.