S85 Performance Oil Cooler

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No more leaks.

Radtec fixed the cracking welds issues using TIG welds across the cooler and redesigning the oil lines fittings to fit the larger OEM o-rings. More details in installation notes.

Resilience through increased capacity [...]

Radtec uprated the capacity by 0.25 liters and the cooling core to 60mm.

and improved air flow.

The Radtec cooler is easily distinguished from others by its signature cow using 1050 Commercial Grade aluminum.

It's black, just like OEM.

The finish is powdercoated to last forever.
Get your performance cooler
S85 Performance Oil Cooler
S85 Performance Oil Cooler
S85 Performance Oil Cooler
S85 Performance Oil Cooler
S85 Performance Oil Cooler
S85 Performance Oil Cooler
S85 Performance Oil Cooler
S85 Performance Oil Cooler

S85 Performance Oil Cooler

  • Made in the UK
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Specifications: 

  • Made in the UK
  • Made from 1050 Commercial Grade aluminum
    • TIG welded
    • Uprated 60mm core
    • Cowl designed for improved airflow & cooling
    • Powder coated in black for an OEM like finish 
  • 1 year warranty
  • Factory plug & play fitment

Installation Notes

The oil cooler fits with OEM hardware. It's a bumper off affair - get ready to spill some oil. Have a jug nearby to replenish or plan a full oil change.

Build Journal: a special series
Getting old doesn't have to be draining.

I bought my M5 in July 2020, by September I was losing half a liter of oil every 1,000 kilometers and my undertray was spoiled in an oddly specific pattern.

The oil cooler was cracked.

I rushed a replacement OE unit for a quick fix. I've sinced swaped to a higher temperature thermostat and revisiting the V10's coolant needs.

In this Special Series, I document the original failure points of the OE unit, my unboxing impressions of this improved oil cooler along with installation notes.

Enjoy,
- Matt / @m3_epoustouflant

Need help?

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