( CSF #8275 & #7218 )
The E60 M5 and E6X M6 took the world by storm in the mid 2000s with their 5.0L V10 Engines and edgy styling. To this day they are highly sought after both for their future classic potential, and being the only BMWs to ever come equipped with V10 engines. With the current trends, it is likely we will never see an engine like the S85 in a production car again.
There is no questioning that the V10 S85 is an amazing motor. However, it does come with its own set of issues. One of those is the sheer amount of heat it produces. Keeping oil temperatures in check can be quite a challenge for the M5/M6. It is not uncommon to see oil temperatures spike to dangerously high levels during performance driving. This is in addition to the factory oil cooler being prone to leaking and cracking. The new CSF E6X M5/M6 High-Performance Oil Cooler solves both these issues.
The factory radiator does a decent job at keeping the car cool. However, factory replacements can be hard to get at times. The heat produced by the V10 also puts a lot of strain on the cooling system as a whole. A larger and more efficient radiator will help your entire system last longer and perform in the most demanding situations. It is also a much needed upgrade for those running a supercharger system.
#8275 Oil Cooler – Design & Engineering
CSF has received a lot of requests for an oil cooler upgrade for the E60 M5 and E6X M6. As the platform ages there are more cooling systems that need to be overhauled. This also presents a great opportunity to upgrade and keep your M5/M6 running better than ever.
The CSF Design was inspired by the RPI SV1 design that was discontinued some time ago. This unit was highly regarded as the go to upgrade option for years and a must have for those who tracked or supercharged their M5/M6.
CSF vs OEM
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.
| Feature | CSF | OEM |
|---|---|---|
| # Cooling Tubes | 13 | 11 |
| # Cooling Fin Rows | 14 | 12 |
| Fin Height/Width | 6.5mm | 8mm |
| Core Thickness | 63mm (2.48 inches) | 45mm (1.77 inches) |
| Core Material | Aluminum | Aluminum |
| Tank Material | Aluminum | Aluminum |
| Construction | 100% TIG Welded | Brazed |
Whether your M5/M6 is a casual cruiser or a track monster, everyone can benefit from an upgraded oil cooler. Supercharged S85’s will benefit the most though as the added power comes at a cost of more heat. High oil temperatures can quickly send a car into limp mode and as well as lead to catastrophic engine damage. CSF new engine oil cooler is also a great preventative maintenance upgrade to avoid costly repairs and extend the longevity of your vehicle.
Test Fitting at Studio RSR
CSF’s development partner Studio RSR was kind enough to help us with the initial test fitting of the new Race-Spec Oil Cooler.
#7218 Radiator – Design & Engineering
CSF has been making the highest quality High-Performance All-Aluminum Radiators for decades. With an industry-leading reputation and deep knowledge of high-performance BMW cooling systems, it was no surprise when requests came in for an E60 M5 / E6X M6 option.
CSF vs OEM
The factory radiator for the E60 M5 and E6X M6 are pretty nice all aluminum units. While they have proven to be fairly robust, age and additional power tend to push them over the edge. Owners who have superchargers tend to have the most issues with their radiators. Between the extra heat produced with forced induction and the heat exchanger mounting in front of the radiator, the factory radiator is working overtime. The E6X models are also getting close to 20 years old and entering the “future classic” stage of life with many owners doing restorations and updates. Anyone who has restored/updated an older car knows the value of having upgraded parts that are as efficient as possible.
The CSF radiator features a 2-Row 42mm aluminum core that not only increases the fluid capacity of the radiator, but also improves the cores ability to dissipate heat. CSF’s Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. Between the 6 additional rows of cooling tubes/fins and the thicker 42mm 2 row core, the CSF Radiator will outperform the OEM unit by a significant margin. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance. The radiator mounts in the factory location and requires no modifications or cutting.
CSF’s TIG-Welded 100% All Aluminum construction increases the overall strength of the radiator. This improves durability and longevity so you can be confident it will hold up to hard driving conditions.
| Feature | CSF | OEM |
|---|---|---|
| # Core Rows | 2 | 1 |
| # Cooling Tubes | 54 | 48 |
| # Cooling Fin Rows | 55 | 49 |
| Fin Height | 6.5mm | 8mm |
| Core Material | Aluminum | Aluminum |
| Tank Material | Aluminum | Aluminum |
| Construction | 100% TIG Welded | Brazed |
Regardless of your driving style and how you use your M5/M6, an upgraded and more robust cooling system is always beneficial.
CSF #8275 – Product Images
BMW E60 M5 / E6X M6 Race-Spec Oil Cooler Features (CSF #8275)
- High Efficiency & Rugged Durability Bar/Plate Design
- “Aero-Flow” Bar Lightweight Construction for Strength and Maximum Flow
- Cast End Tanks with 100% TIG-Welded Construction
- Satin Black Finish for Extreme Protection Against Corrosion and Debris
- CNC Machined Mounting Brackets and OEM Style Inlet/Outlet Connection
- Requires minor trimming of the plastic shroud to install (instructions included)
- Individually Leak and Pressure Tested
- 2-Year Limited Warranty
- Applications:
- 2006-2010 BMW E60 M5
- 2006-2010 BMW E63/E64 M6
- OEM Part Numbers:
- BMW: 17222282499
- BMW: 17222282699
- MSRP: $599.00 USD /MAP: $559.00 USD
CSF #7218 – Product Images
BMW E60 M5 / E6X M6 High-Performance All-Aluminum Radiator Features (CSF #7218)
- 2-Row, 42mm Ultra-High-Performance Core
- Cooling Tubes with CSF’s Exclusive B-Tube Technology
- 6.5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
- CNC Machined Mounting Brackets and OEM Style “Quick Connect” Inlet/Outlet
- 100% All Aluminum TIG-Welded Construction
- Satin Finish
- True Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications
- Individually Leak and Pressure Tested
- 2-Year Limited Warranty
- Applications:
- 2006-2010 BMW E60 M5
- 2006-2010 BMW E63/E64 M6
- OEM Part Numbers:
- BMW: 17112282732
- MSRP: $599.00 USD /MAP: $599.00 USD
Where to Buy
CSF authorized dealers & distributors
Preferred Dealers
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