BMW M3 High Performance Power Steering Cooler (E90/E92/E93)

High power steering temperatures are a known issue on the E9X M3, especially on track. As fluid temps rise, hydraulic pressure can drop dramatically, reducing steering assist and consistency when you need it most. The CSF-8041 Power Steering Cooler is engineered to keep fluid temperatures under control so steering performance stays stable during prolonged aggressive driving.

Designed as the world’s first true plug-and-play power steering cooler for the E9X M3 platform, it installs as a drop-in replacement with no modification required and retains OEM-style mounting and connections.

Key Features / Technical Specs

• Upgraded core construction
  Replaces OEM low-efficiency mechanically bonded core with CAB-brazed high-efficiency plate-type design

• Microtube technology (A/C condenser style)
  1-row super-high pressure core, 18mm wide, 4-channel microtube design

• Dual-pass 6-row layout
  83% increase in surface area compared to the OEM cooler

• Drop-in fitment (no cutting/no fabrication)
  Reuses OEM oil-line connections, mounting brackets, and fits with the A/C condenser

• Lab-tested performance
  Reported at ~40% more efficient than the OEM cooler

• Packaging designed for modified cars
  Increased unit height (+83mm / 3.27”, growth toward the top) to maintain compatibility with aftermarket supercharger systems, heat exchangers, and auxiliary coolers mounted below the OEM cooler position

Replaces OEM Part Number

• 17112282716

Fitment

• BMW M3 E90 (Sedan)

• BMW M3 E92 (Coupe)

• BMW M3 E93 (Convertible)