The CSF 8145 is a race-spec engine oil cooler for the 2011-2016 BMW 135i and 135i xDrive (F20) and M135i and M135i xDrive (F21) with the N55 turbocharged 3.0L inline-6. It uses a dual-core in-series system that adds an extra 5 rows of super-high-pressure multi-channel micro-tubes on the rear side, together with a multi-louvered fin design, for about a 40 percent increase in heat rejection over the factory unit. It is a drop-in fit that installs in the OEM location with no modifications, and it is built for extended, high-load driving.
- Type: race-spec engine oil cooler
- Core: dual-core in-series, plus 5 rear rows of super-high-pressure micro-tubes
- Fins: multi-louvered
- Performance: about 40 percent more heat rejection than OEM
- Engine: N55 turbo 3.0L inline-6
- Fitment: drop-in, OEM location, no modifications
- Part number: 8145
Vehicle Applications
Direct fit on the following (N55 turbo 3.0L):
- 2011 BMW 135i (F20)
- 2012 BMW 135i (F20)
- 2013 BMW 135i (F20)
- 2014 BMW 135i (F20)
- 2015 BMW 135i (F20)
- 2016 BMW 135i (F20)
- 2011 BMW 135i xDrive (F20)
- 2012 BMW 135i xDrive (F20)
- 2013 BMW 135i xDrive (F20)
- 2014 BMW 135i xDrive (F20)
- 2015 BMW 135i xDrive (F20)
- 2016 BMW 135i xDrive (F20)
- 2012 BMW M135i (F21)
- 2013 BMW M135i (F21)
- 2014 BMW M135i (F21)
- 2015 BMW M135i (F21)
- 2016 BMW M135i (F21)
- 2012 BMW M135i xDrive (F21)
- 2013 BMW M135i xDrive (F21)
- 2014 BMW M135i xDrive (F21)
- 2015 BMW M135i xDrive (F21)
- 2016 BMW M135i xDrive (F21)
FAQ
What vehicles does the CSF 8145 fit?
The 2011-2016 BMW 135i(X) F20 and M135i(X) F21 with the N55 turbocharged 3.0L inline-6.
How much more cooling does it provide?
About a 40 percent increase in heat rejection over the factory oil cooler.
How is the core designed?
A dual-core in-series system that adds 5 extra rows of super-high-pressure multi-channel micro-tubes on the rear side.
Is it a drop-in fit?
Yes. It installs in the OEM location with no modifications.
