What is included with this CSF oil cooler?

This kit includes the CSF Race-Spec Oil Cooler unit. It is designed to accept all attaching OEM components, such as oil-line connections, mounting brackets, and shrouding, so you can reuse your original parts.

How much extra oil does this cooler require?

During installation, you will need to add an additional half quart of oil to properly fill the system. The total oil capacity for this cooler is 7.5 quarts, compared to the OEM cooler's 7 quarts.

Is this oil cooler designed for track use?

Yes, this is a Race-Spec oil cooler that has been track tested and proven by Hittman Racing's M235iR endurance race car. It's built to keep engine oil temperatures manageable under extreme driving conditions.

CSF Race-Spec Oil Cooler for BMW N55 8145

Name: CSF 11-16 BMW 135i(X) 5 Door F20 / M135i(X) 3 Door F21 Race-Spec Oil Cooler
Brand: CSF
SKU: csf-csf-11-16-bmw-135i-x-5-door-f20-m135i-x-3-door-f21-race-spec-oil-cooler-t14-341890
Price: 407.48 USD
Availability: InStock

CSF 11-16 BMW 135i(X) 5 Door F20 / M135i(X) 3 Door F21 Race-Spec Oil Cooler

$407.48

Only 6 left in stock

CSF Race-Spec Oil Cooler for BMW N55 engines. Features a dual-core design for a 40% increase in heat rejection, keeping oil temps manageable.

Key Features

Fits 2012-2016 BMW 335i, 435i, M235i, and other N55-powered models.
Dual-core in-series system with an additional 5 rows of cooling on the backside.
Offers approximately a 40% increase in heat rejection compared to the factory oil cooler.
Utilizes CSF's AC condenser technology with a 1-row super-high pressure 26mm multi-channel microtube.
Features a high-density multi-louvered fin design for maximum surface area contact.
Converted to a single-pass design with a high-pressure return line for optimal flow.

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Will it fit your car?

Product Details

This is CSF's Race-Spec Oil Cooler, designed specifically for BMWs with the N55 engine. What you get is a complete, dual-core in-series oil cooler system that directly replaces your factory unit. It's built using CSF's AC condenser technology and features an additional 5 rows of cooling on the backside, using high-pressure, multi-channel micro-tubes. This setup allows for maximum surface area contact and a notable 40% increase in heat rejection compared to stock.

This upgraded oil cooler is a direct fit for a range of BMW models including the 335i, 435i, and M235i from roughly 2012 through 2016. It's designed to bring engine oil temperatures down to a consistent and manageable level, even when you're pushing the car hard. The high-density, multi-louvered fin design works with the single-pass, high-pressure return line to ensure optimal flow and efficient cooling. This is a track-tested part, proven by Hittman Racing's M235iR endurance car.

During installation, you'll need to add about half a quart of oil to reach the proper fill level, bringing the total capacity to 7.5 quarts. All your original attaching OEM components, like oil-line connections, mounting brackets, and shrouding, will easily attach to this new cooler, meaning no modifications are needed for installation.