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Mosselman Twin Oil Cooler Extension Kit - E8x 135i, 1 Series M (1M)

Mosselman Twin Oil Cooler Extension Kit - E8x 135i, 1 Series M (1M)

Regular price $1,219.00 AUD
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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. 



Mosselman Twin Oil Cooler Extension Kit for the E8x 135i and E82 1 Series M (1M). Upgrade your Single Oil Cooler Kit to a Twin Oil Cooler Kit.

  • The Twin Cooler Extension Kit comes with
    1x Setrab 19-row oil cooler.
    1x Pre assembled stainless steel bracket for the left side.
    1x Complete mounting bracket for the left cooler.
    1x Hose kit.
  • Warm Climate and Track use
    We recommend the Twin cooler setup for cars in very warm climates and cars that are used on a track.

Installation instructions come with kit

Suitable for E82 135i Coupe, E88 135i Convertible and E82 1 Series M (1M) models fitted with N54 or N55 engine. 


"Upgrade the Single Oil Cooler Kit of your BMW 1-Series E8x to a Twin cooler setup with this Twin Cooler Extention Kit E8x. The twin setup is recommended for cars in a very warm climate and cars that will be used on a track.

The Twin Extension kit comes with the 1x Setrab 19 row oil cooler, 1x stainless MSL bracket, 1x Mounting bracket, and a hose kit (1 oil hose).

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. Additional OEM products that you need for the installation are: oil cooler front air duct (left), wheel arch air duct (left), inside wheel arch for the auxiliary cooler (left).

​Installing the twin oil cooler extension on a BMW 1M requires some extra modifications to make the left oil cooler fit into the car. The 1M is equipped with an auxiliary water cooler on the left side of the car. This is the place where the second oil cooler needs to be installed. To make this fit the auxiliary watercooler has to be removed and probably a bigger radiator has to be installed. It will add extra time to the installation process. "


  • 1 Series / E82 / E88 (2007-2013) / 1 Series M (1M)
  • 1 Series / E82 / E88 (2007-2013) / 135i N54
  • 1 Series / E82 / E88 (2007-2013) / 135i N55