Vehicle Fitment

  • 2011–2016 BMW 135i (F20, N55)
  • 2011–2016 BMW M135i (F21, N55)
  • 2012–2016 BMW M235i (F22, N55)
  • 2014–2016 BMW M235i Convertible (F23, N55)
  • 2011–2015 BMW 335i (F30, N55)
  • 2011–2015 BMW 335i xDrive (F30, N55)
  • 2011–2015 BMW 335i Touring (F31, N55)
  • 2012–2016 BMW 335i Gran Turismo (F34, N55)
  • 2012–2016 BMW 435i (F32, N55)
  • 2013–2016 BMW 435i Convertible (F33, N55)
  • 2013–2016 BMW 435i Gran Coupe (F36, N55)

Features

  • Innovative 2-core in-series system with an additional 5 rows of cooling for approximately 40% increased heat rejection
  • High-density multi-louvered fin design for maximum surface area contact
  • Converted to a single-pass design with high-pressure return line for optimal flow
  • Utilizes CSF's AC condenser technology with a 1-row super-high pressure 26mm multi-channel microtube
  • Drop-in fit requiring no modifications to install; accepts all attaching OEM components including oil-line connections, mounting brackets, and shroud/ducting
  • World's first and only true "plug-and-play" upgraded engine oil cooler for the BMW N55 engine
  • Track tested and proven by Hittman Racing's M235iR endurance race car
  • Requires an additional ½ quart for proper fill-up during installation (OEM cooler: 7 qts; CSF upgrade: ~7.5 qts)

Specifications

  • Core Design: Dual-core in-series with additional 5 rows of cooling
  • Tube Technology: 1-row super-high pressure 26mm multi-channel microtube
  • Fin Design: High-density multi-louvered fins
  • Flow Design: Single-pass with high-pressure return line
  • Installation: Drop-in fit with OEM compatibility
  • Additional Capacity: Requires ½ quart more oil than OEM cooler
  • Testing: Lab-tested in wind tunnel, vibration, thermal cycle, burst pressure, and salt spray corrosion testing

Included Components

  • 1x CSF 8145 Race-Spec Oil Cooler
  • 1x Installation Guide

Product Description

The CSF 8145 Race-Spec Oil Cooler is engineered to provide superior cooling performance for BMW vehicles equipped with the N55 engine. Designed for enthusiasts seeking enhanced engine reliability during high-performance driving, this oil cooler features an innovative dual-core in-series system with an additional 5 rows of cooling, resulting in approximately 40% increased heat rejection compared to the OEM unit.

Utilizing CSF's advanced AC condenser technology, the cooler incorporates a 1-row super-high pressure 26mm multi-channel microtube and high-density multi-louvered fins to maximize surface area contact and airflow. The single-pass design with a high-pressure return line ensures optimal oil flow, maintaining consistent and manageable engine oil temperatures even under extreme driving conditions.

Installation is straightforward with the drop-in fit design, requiring no modifications and accepting all OEM components, including oil-line connections, mounting brackets, and shroud/ducting. Track tested and proven by Hittman Racing's M235iR endurance race car, the CSF 8145 is the world's first and only true "plug-and-play" upgraded engine oil cooler for the BMW N55 engine.



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