Oil Cooler Kit for BMW M3, M4 (2015-2020) 3.0L

High-Capacity Bar-and-Plate Oil Cooler Upgrade for 2015-2020 BMW M3, M4 (F80, F82, F83)

What it Does: The Oil Cooler Kit replaces the factory heat exchanger on the 2015-2020 BMW M3 and M4 to stabilize engine oil viscosity, lower peak operating temperatures, and protect internal engine bearings under heavy thermal load.

The Stock BMW M3,M4 Thermal Saturation Vulnerability

The factory oil cooler on the BMW F80 M3 and F82/F83 M4 is prone to rapid thermal saturation during continuous track sessions, aggressive canyon runs, or elevated boost stages on the twin-turbo S55 platform. Mounted low and relying on a thin factory core, the OEM unit struggles to shed heat efficiently when ambient temperatures rise. Elevated oil temperatures cause thermal breakdown of lubricant viscosity, precipitating catastrophic oil film shear at the rod bearings, journal bearings, and twin turbocharger cartridges. Furthermore, the factory packaging leaves minimal reserve volume, making oil temperature management a critical bottleneck for tuned engines.

The Engineering Solution

Engineered to mitigate thermal degradation, this bolt-on kit integrates a heavy-duty aluminum bar-and-plate heat exchanger core offering 46% more core volume than the factory assembly. The bar-and-plate design delivers superior thermal dissipation and durability against airborne road debris compared to delicate tube-and-fin alternatives, all while maintaining minimal oil pressure drop across the matrix. Fluid capacity increases by roughly 0.44 quarts, slowing thermal cycling. The kit features billet aluminum S55 adapter blocks, leak-free high-pressure fittings, and durable nylon-braided -10AN oil transfer lines rated for high fluid velocity and operating pressures, matching OEM part number 01EGB057ZSL fitment standards.

What's Included

• Bar-and-plate aluminum oil cooler
• Nylon braided -10AN oil lines
• S55 adapters and fittings
• Mounting hardware

Technical Specifications

Compatibility

• 2015-2018 BMW M3 Sedan (F80) 3.0L S55
• 2015-2020 BMW M4 Coupe (F82) 3.0L S55
• 2015-2020 BMW M4 Convertible (F83) 3.0L S55
• 2019-2020 BMW M2 Competition (F87) 3.0L S55

Frequently Asked Questions & Fitment Warnings

Does this fit the F80, F82, and F83 M3,M4?

Yes, this is a direct fit for the 2015-2020 BMW M3, M4 equipped with the S55 engine.

Do I need to add extra engine oil during installation?

Yes, because the expanded core volume increases total capacity, you must add approximately 0.44 quarts of oil and check levels post-installation.

The BMW Precision Standard

Engineered to meet the stringent thermal demands of high-output European platforms, this cooling assembly ensures consistent oil pressure and prevents limp-mode faults on circuit or street without triggering check engine lights.