CSF Race-Spec Oil Cooler – BMW N55 (E-Chassis)

OVERVIEW

CSF's Race-Spec cooler for the N55-powered E-Chassis BMW is a direct replacement for the factory oil/transmission cooler, built using CSF's AC condenser technology. The core carries eleven super-high-pressure micro-tubes against the OEM's ten, and a high-density multi-louvered fin gives roughly 20% more surface area contact than the factory unit. CSF's lab testing puts the cooler at approximately 30% more efficient than OEM.

It is a genuine drop-in. The cooler accepts every attaching OEM component — oil-line connections, mounting brackets and the factory shroud and ducting — so nothing needs to be cut, drilled or re-routed. CSF describes this as the world's first true plug-and-play transmission cooler for the E9X platform; on manual-transmission cars it serves as an upgraded engine oil cooler instead.

SPECS

• Built with CSF's AC condenser technology: 1-row, super-high-pressure, 22mm-wide 11-channel microtube
• Dual-pass high-performance core with 11 cooling tubes versus the OEM 10-tube design
• High-density multi-louvered fin design with approximately 20% more surface area contact than the OEM unit
• Lab tested at approximately 30% more efficient than the OEM cooler
• Drop-in fit requiring no modifications; accepts all attaching OEM components including oil-line connections, mounting brackets and shroud/ducting
• Dual purpose: transmission oil cooler on DCT/automatic cars, engine oil cooler on 6-speed manual cars
• Replaces OEM part number 17227521376
• CSF 2-year warranty, under normal use and service, to the original purchaser of the vehicle in which the product was originally installed

PARTS INCLUDED

• One (1) CSF #8042 race-spec dual-pass oil / transmission cooler
• Complete kit as supplied by CSF Radiators; CSF does not publish a bill of materials for this part — see the instructions packed in the box for the full contents.

TECH RESOURCES

Additional Parts Required

• None. CSF Radiators specifies no additional hardware for this part — it is a direct-fit replacement that reuses the OEM lines, brackets and ducting.
• Installer-supplied: a drain pan and fresh fluid to replace what is lost when the cooler and lines are opened.

Installation

• CSF does not publish a downloadable installation PDF for this part. Printed installation instructions are packed in the box with the cooler.
• Installation is a direct swap of the factory cooler using OEM mounting points and quick-connect lines; no cutting, drilling or line modification is required.
• Need help before or during the install? Contact Speed Logic and we will walk you through it.

Notes

• CSF #8042 is a single part covering the whole E-Chassis range; the table above is the N55 subset. CSF's current US catalog lists the E92 335i as 2012–2013 and the X1 xDrive35i as 2013–2015, and does not separately list the E93 — the E93 and earlier N55 years are carried over from Speed Logic's original CSF fitment data. Confirm your exact chassis, engine and transmission with Speed Logic before ordering.

PART NUMBER

• CSF #8042

VEHICLE APPLICATIONS