CSF for BMW 3 Series E30 (1984-1991)

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E30 Group A/DTM Race Style Oil Cooler - BMW E30 M3 325
E30 Group A/DTM Race Style Oil Cooler - BMW E30 M3 325
See fitment notes in the description!
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T#:8076771
Part#: 8218
Ships on Jul 8, 2026
$ 499.00 USD
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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 the European Touring Car Championship and German Touring Car Championship (aka DTM) and countless other victories. The BMW Engineers had to design an oil cooler that could keep up with the added power of the race-spec engine and perform under the grueling conditions on the track. The size of the standard factory oil cooler was increased by about 50% while using the same mounts and connectors as the standard production M3. The CSF E30 Group A / DTM Race Style Oil Cooler is the same size as these race coolers with some modern upgrades/updates. 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 that 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. 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. Features & Specifications: Group A / DTM E30 M3 Oil Cooler Design Direct fit oil cooler for BMW E30 M3 Can fit all E30 Chassis (see applications and fitment notes) 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 Comes complete with fitting kit for both OEM style as well as -10 AN male connections Fitment Notes: 1986-1993 BMW E30 M3 (S14) The long factory oil hard line will not be able to use support brackets on the back of the radiator. This is due to the adapter fittings pushing the lines out about a ½” from factory so the brackets won’t line up but the lines will still run to the proper location and can be connected. 1985-1987 (up to 09/87) BMW E30 325 w/ Factory Oil Cooler Requires custom lines (factory hard line passes over the oil cooler normally but this unit is too tall to run that line over the top). 1988-1993 BMW E30 325 w/ Factory Oil Cooler Requires custom lines & mounting hardware. E30 Chassis has provisions for OEM mounting hardware. OEM Mounting Hardware part number listed below. 1984-1993 BMW E30 3-Series w/o Factory Oil Cooler Requires lines, mounting hardware, and sandwich plate (or provision for oil hook up). E30 Chassis has provisions for OEM mounting hardware. OEM Mounting Hardware part numbers listed below. The BMW OEM Parts Required for Retrofit: Body bracket: #17211719126 x 2 Rubber grommet: #17211712839 x 2 Grommet insert: #17211712844 x 2 Grommet hex head screw: #07119916886 x 2 Oil cooler O-rings: #17222245358 x 2
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CSF OE Style Radiator and Expansion Tank - E30 318i/is, E36 318i/is/ti, Z3 1.9
CSF OE Style Radiator and Expansion Tank - E30 318i/is, E36 318i/is/t...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:568373
Part#: 2524
In Stock
$ 124.99 USD
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$ 124.99 USD
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This is a factory original style radiator from CSF and will fit perfectly into the stock location. Cooling will be identical to what your car came with originally. A great replacement with all the proper connections and in all of the proper locations.
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CSF High Performance Aluminum Radiator - E30 M3
CSF High Performance Aluminum Radiator - E30 M3
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T#:384656
Part#: 7063
Ships in 3 Business Days
$ 529.00 USD
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$ 529.00 USD
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CSF is one of the premier cooling product specialists available on the market thanks to designs such as their High Performance Aluminum Radiators. Using a two-row, triple-pass designed core, this radiator gives you all the cooling you could ever need. Paired with these radiators are CNC machined brackets and corrosion resistant hardware that allow final installation to have a same as stock fitment! This enables you to have much higher cooling without having to cut away any metal or delete any important components just for the sake of lower coolant temperatures. 

Features:

  • Two-row, triple-pass design radiator core
  • CNC machined mounting brackets
  • All needed hardware included
  • Hand polished aluminum with a mirror-like finish
  • Stock fitment prevents modification to engine bay

Fits the following BMWs:
1987-1991 E30 BMW M3 2.7L

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CSF High Performance Oil Cooler with OE and AN-10 Fittings - E30 BMW M20
CSF High Performance Oil Cooler with OE and AN-10 Fittings - E30 BMW ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:401256
Part#: 8092
Ships in 2 Business Days
$ 349.00 USD
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$ 349.00 USD
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CSF is one of the premier cooling product specialists available on the market today. One item that is often overlooked is the oil cooler. Luckily CSF has taken up the task of upgrading the E30 platform to an external oil cooler. If the oil runs too hot, it can lead to a reduction in wear protection and damage to the head, block, or the turbo system. This unit has 4 cooling cores and fits behind the bumper without any issues.

Fits the following BMWs:
1984-1991 E30 BMW M20 Engine

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CSF Universal Large Single-Pass Oil Cooler - Universal Application
CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Universal fitment design - modifications may be necessary to run this cooler
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T#:53608839
Part#: 8371
Ships in 3 Business Days
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$ 499.00 USD
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$ 499.00 USD
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CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.
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