Designing the ultimate BMW E30 Oil Cooler was not an easy task. While with custom fabrication anything is possible, CSF prides itself on making upgraded products that fit like a factory unit. Fortunately, BMW already did some of the leg work for this in the late 1980s. The new CSF #8218 is based on the race proven and championship winning formula used by BMW.
To give you some history on this topic, we have to go back to 1987. After BMW decided to enter Touring Car and DTM racing, they created what most would consider to be the ultimate E30 M3. In the span of about 5 years, the Group A spec M3 became the most successful touring car of all time. This race spec BMW won two champion’s titles in both the European Touring Car Championship and German Touring Car Championship (aka DTM) along with countless other victories.
While most of the engineering that went into the first M3/3-Series was top of line at the time, there is plenty of room for improvement. The cooling systems on the E30 are fairly adequate for normal to semi spirited driving. However, the factory oil cooler can still struggle to keep up under aggressive driving or track days. The vehicle is also old enough that many of the factory systems really need to be replaced.
While your original system may still be functional, it is likely not in the best shape. Dented, clogged, and weathered coolers just can’t perform like a new cooler. Even then, the old tube and fin design don’t compare to the durability and performance of a bar and plate design.
CSF understands that most owners don’t want to change the look of their Bavarian classics at this point. That’s why the E30 Group A / DTM Oil Cooler was design to fit in the factory location with no custom mounting hardware necessary. The CSF Oil Cooler offers superior cooling capacity, modern technology, and costs less than a genuine OE replacement.
When designing this new cooler, CSF wanted to ensure the best possible performance while ensuring the cooler was as durable as possible. As you’ve seen, oil coolers and other heat exchangers can take quite a beating over time. CSF utilizes an extremely rugged and durable Bar/Plate design which can stand up to far more abuse. The CSF “Aero-Flow” Bar design reduces weight compared to other Bar/Plate designs while maintaining maximum strength and air-flow. These “Aero-Flow” bars improve heat dissipation with high density turbulated multi-louvered fins. Turbulation increases the turbulent flow through a tube, effectively increasing heat exchange rates and abilities.
Feature | OEM | CSF |
---|---|---|
Cooling Tubes | 5 | 7 |
Core Type | Tube & Fin | “Aero-Flow” Bar & Plate |
End Tank | Stamped Aluminum | Cast Aluminum |
Design/Construction | Stamped Aluminum Brazed w/ Gasket |
100% TIG Welded Cast Aluminum End Tanks |
At around 50% larger in size, the CSF #8218 Oil Cooler increases both fluid capacity and core surface area. The overall performance of the Oil Cooler far exceeds the factory cooler’s limits. 100% All-Aluminum construction ensures the best performance and durability. In addition, the black powder coat finish provides extra protection and offers an OEM look behind the grille of your E30.
All Late Model (After 09/87) E30 3-Series equipped with factory oil coolers use these inner mounting locations.
All E30 M3 Models & Early Model
(Up to 09/87) E30 3-Series equipped with factory oil coolers use these outer mounting locations.
All E30 Models come with both mounting location provisions from the factory. You can use either mounting location with the proper hardware. Therefore OEM Hardware can be used to mount the CSF #8218 Cooler whether your car was equipped with one from the factory or not. Note: Factory lines differ between the various models so changing your factory cooler style will require new/custom lines.
Here is an image of the CSF E30 Oil Cooler #8218 installed on an E30 M3 using the factory oil cooler lines. As you can see it mounts perfectly with the OEM hardware. There is ample clearance between the oil cooler and the front mount electric fan.
Most aftermarket condenser/auxiliary fans should have similar clearance. While it is unlikely that the a fan will cause a clearance issue with the cooler, it may limit your options on how you run your oil lines. Traditionally, the M20 oil cooler lines run above the cooler, and a large/think protruding auxiliary fan could make running new lines over the cooler more difficult.
Customers running turbo systems with a front mount intercooler (FMIC) maybe also have fitment issues.
Please contact us if you have any questions regarding fitment conflicts with other aftermarket parts.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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