Details
SKU: CSF-8041
GTIN / UPC: N/A
Made in: N/A
Quality: Premium Aftermarket
Vehicle Compatibility
BMW E8X 128i
BMW E9X 3 Series
BMW E90 M3 Sedan
BMW E92 M3 Coupe
BMW E93 M3 Convertible
Product Information
The CSF High-Performance Power Steering Cooler is a direct-fit upgrade for compatible BMW E8X and E9X models, including the BMW E90, E92 and E93 M3 equipped with the S65 V8 engine.
Power steering fluid temperatures can rise considerably during spirited driving, track use and repeated high-load steering operation. Excessive heat can reduce fluid performance and place additional thermal stress on the power steering pump, hoses, seals and other hydraulic steering components.
CSF replaces the factory mechanically bonded, low-efficiency core with a CAB-brazed plate-type design based on the company's air-conditioning condenser technology. The cooler uses a single-row, super-high-pressure 18 mm microtube containing four internal channels to improve heat transfer while maintaining a compact and durable construction.
A dual-pass, six-row layout provides an 83% increase in cooling surface area compared with the original unit. Laboratory testing performed by CSF demonstrated approximately 40% greater cooling efficiency than the factory power steering cooler.
- Designed for compatible BMW E8X and E9X models
- Compatible with the BMW E90, E92 and E93 M3 S65 V8
- Direct replacement for the factory power steering cooler
- CAB-brazed high-efficiency plate-type construction
- Single-row, 18 mm (0.71 in) super-high-pressure microtube
- Four internal microtube channels
- Dual-pass, six-row cooling design
- 83% greater surface area than the factory cooler
- Approximately 40% greater cooling efficiency than the factory unit
- Retains the original power steering oil-line connections
- Compatible with the factory mounting brackets and air-conditioning condenser
- True plug-and-play installation with no cutting or modifications required
Performance Specifications
| Specification |
CSF Power Steering Cooler |
| Core Construction |
CAB-brazed plate type |
| Microtube Width |
18 mm (0.71 in) |
| Internal Channels |
4 |
| Cooling Configuration |
Dual pass, 6 rows |
| Total Height |
83 mm (3.27 in) |
| Surface-Area Increase |
83% compared with the factory cooler |
| Tested Efficiency Increase |
Approximately 40% compared with the factory cooler |
Cooling Performance
The dual-pass configuration directs the power steering fluid through the cooler in two stages, increasing its exposure to the available cooling surface. The six-row plate design and multi-channel microtube construction help remove heat more efficiently than the factory mechanically bonded cooler.
Improved power steering fluid temperature control is especially beneficial during track driving, autocross, spirited road use and other conditions involving frequent or sustained steering input. Reducing fluid temperature can help preserve hydraulic performance and reduce thermal stress on the power steering system.
Supercharger and Auxiliary Cooler Compatibility
The cooler's increased height is positioned above the factory cooler location rather than extending downward. This design preserves space beneath the power steering cooler for compatible aftermarket supercharger heat exchangers, auxiliary coolers and other front-mounted cooling components.
Its 83 mm (3.27 in) overall height provides substantially more cooling surface while maintaining the lower clearance required by many modified E9X M3 applications.
Quality and Testing
CSF operates ISO-certified manufacturing facilities and supplies cooling components to automotive manufacturers in the United States, Germany and Asia. Its performance cooling products are manufactured using the same production standards applied to its original-equipment cooling components.
CSF cooling products are subjected to rigorous quality-control procedures that may include hydrostatic testing, vacuum-decay testing and lifecycle testing to verify sealing, durability and long-term performance.
Installation
The power steering cooler is designed as a true plug-and-play replacement and requires no cutting or permanent modifications. It accepts the original power steering oil-line connections, mounting brackets and air-conditioning condenser.
Professional installation is recommended to ensure correct positioning, secure hydraulic connections and proper clearance around the air-conditioning condenser, bumper and any additional front-mounted cooling components.
Important Notes
- Replaces BMW OE power steering cooler part number 17117522119.
- No cutting or modification of the factory mounting area is required.
- Designed to retain the original power steering lines, mounting brackets and air-conditioning condenser.
- Power steering fluid, hoses, seals and additional installation components are not included unless otherwise specified.
- Inspect the power steering hoses, fittings and seals during installation and replace worn or leaking components as required.
- Professional installation, correct fluid filling and a final leak inspection are recommended.
À propos de CSF
CSF est une marque de confiance dans le domaine des systèmes de refroidissement haute performance, proposant des radiateurs, des échangeurs intermédiaires, des refroidisseurs d'huile et bien plus encore à la pointe de l'industrie. Fort de plus de 50 ans d'expérience, CSF allie fabrication de pointe et ingénierie de précision pour offrir un montage de type première monte et des performances éprouvées en compétition. Que ce soit pour une utilisation sur route, sur circuit ou en conditions extrêmes, les produits de refroidissement CSF sont conçus pour maintenir la température sous contrôle dans les conditions les plus exigeantes.
