do88 00-06 BMW M3/M3 CSL S54B32 (E46) Engine Oil Cooler

Add some much-needed durability and cooling power to your M3 or M4 with the Mishimoto 2015-2020 BMW M3/M4 Oil Cooler kit. True to form, the BMW engineers designed the M3/M4’s oil cooler with efficient space use in mind. Suspended perpendicular from the rest of the cooling stack, this location utilizes the Bimmer’s aerodynamics in order to cool the oil, all while putting the lightweight, tube-and-fin cooler in harm’s way of road hazards. We here at Mishimoto made sure to beef up the entire oil cooling system design for the F80/82 with our performance oil cooler. We ditched the lightweight design for a full aluminum, TIG-welded bar-and-plate cooler for added strength and cooling. The bars and plates are a much more robust form of heat exchanger core construction intended for improved heat transfer and have the strength to shrug off potential road debris, keeping your oil temps down and where it should be. We also added 10mm to the core’s thickness, equating in a 46-percent increase in core volume, and increased the oil capacity by .4 qt. In addition we wanted to add an extra degree of protection to the system by improving on the lines. From the factory, these vehicles are equipped with unforgiving hardlines that are prone to abrasion and corrosion damage. Our oil cooler kit provides a pair of application-specific, flexible, and robust nylon braided lines for a more secure channel for your M’s oil. Also included are our specially designed adaptors allowing for AN fittings from the S55’s oil pump and a secure connection to the oil cooler.The Mishimoto 2015-2020 BMW M3/M4 Oil Cooler Kit fits directly in place of the stock unit, and includes the Mishimoto Lifetime Warranty for a simplified and worry-free installation.
High-performance engine oil cooler designed to regulate oil temperature and protect critical engine components. Efficient heat dissipation improves durability, maintains lubrication, and ensures reliable performance.

• Kit includes oil line fitting kit, along with oil cooler adapters for use of nylon braided lines
• Full aluminum TIG-welded construction
• 46-percent increase in core volume

The original OE oil cooler from BMW is an all metal design which would make you think it would be fairly robust. However, there are several weak spots in the design that tend to cause leaks. The CSF Race-Spec design reinforces the weak points, especially around the feed and return lines. CSF’s solid line connection block can handle any abuse thrown at it while the reinforced and braced return tube is rock solid. CSF also upgraded the more fragile Tub/Fin core to a robust and durable Bar/Plate design. The core is 40% larger than the factory unit with 2 additional rows of oil cooling and much thicker core (63mm vs OE 45mm). This offers superior cooling capacity and volume for the oil system. TIG welded end tanks round out the slew of upgrades creating a much stronger connection than the factory brazed construction.
CSF offers the best and most advanced Oil Coolers on the market. So when it comes to keeping your engine oil temps down as you push your BMW E60 M5 / E6X M6 hard on the street or track, a CSF Oil Cooler is the obvious choice.
The CSF #8275 Cooling product is designed to be a “Drop-In Fit” application. The product will install in the OEM Location with no modifications necessary unless otherwise noted or instructions are included in the product package. Please see the manufacturer repair manual for standard installation instructions. If you do not feel confident installing this product CSF recommends taking it to a qualified installation facility.

• Requires minor trimming of the plastic shroud to install (instructions included)
• “Aero-Flow” Bar Lightweight Construction for Strength and Maximum Flow
• Satin Black Finish for Extreme Protection Against Corrosion and Debris
• CNC Machined Mounting Brackets and OEM Style Inlet/Outlet Connection
• High Efficiency & Rugged Durability Bar/Plate Design
• Cast End Tanks with 100% Tig Welded Construction
• Individually Leak and Pressure Tested
• 2-Year Limited Warranty