The CSF DCT Oil Cooler is a true plug-and-play upgrade for the BMW E9X M3 platform, installing in the OEM location with no modifications. It can serve as a transmission oil cooler on DCT cars or an engine oil cooler on 6MT cars. The dual-pass high-performance core has 11 cooling tubes (vs the OEM 10-tube design) and uses CSF's AC Condenser Technology with a 1-row super-high-pressure 22mm wide 11-channel microtube and 20% more surface area than OEM. Lab tested at approximately 30% more efficient. Replaces OEM part number 17227521376.
| Type | DCT transmission / engine oil cooler (drop-in fit) |
| Core | Dual-pass, 11 cooling tubes (vs OEM 10); AC Condenser Tech 22mm 11-channel microtube |
| Efficiency | ~30% more efficient than OEM (+20% surface area) |
| Connections | OEM oil-line connections |
| OEM Replacement | 17227521376 |
| Warranty | CSF Limited Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2013 | BMW | 135i | Base |
| 2013 | BMW | 135is | Base |
| 2007-2013 | BMW | 335i | Base |
| 2009-2013 | BMW | 335i xDrive | Base |
| 2011-2013 | BMW | 335is | Base |
| 2007-2008 | BMW | 335xi | Base |
| 2008-2013 | BMW | M3 | Base |
| 2013-2015 | BMW | X1 | xDrive35i |
