Rein EPK0151 Engine Coolant Reservoir Kit - Radiator

Overview of Rein Engine Coolant Reservoir Kit EPK0151

The Rein Engine Coolant Reservoir Kit EPK0151 is designed specifically for select BMW models, including the 535d, 535i, 640i, and 740Li series. This application-specific expansion tank kit ensures reliable coolant containment and system performance under demanding conditions.

• Includes sensor and cap for complete installation
• Manufactured from virgin plastic exceeding OE specifications
• Resistant to cracking and wear from repeated heat cycles
• Direct fitment for easy replacement on compatible BMW vehicles

Product Features and Specifications

This Rein expansion tank kit is engineered to meet the rigorous demands of BMW cooling systems. Constructed from high-quality virgin plastic, it offers enhanced durability and resistance to heat-related wear, helping to prevent coolant leaks and system failures. The kit includes the necessary sensor and cap, providing a comprehensive solution for coolant reservoir replacement. Its direct fitment design simplifies installation, reducing labor time and ensuring proper integration with the vehicle’s cooling system.

Compatible BMW Models and Applications

The Rein Engine Coolant Reservoir Kit EPK0151 is compatible with a range of BMW vehicles, including:

• BMW 535d, 535d xDrive
• BMW 535i, 535i GT, 535i GT xDrive, 535i xDrive
• BMW 640i, 640i Gran Coupe, 640i xDrive, 640i xDrive Gran Coupe
• BMW 740i, 740Ld xDrive, 740Li, 740Li xDrive
• BMW ActiveHybrid 5 and ActiveHybrid 7

Common Issues Addressed by This Expansion Tank Kit

• Cracking or leaking of the original coolant reservoir due to heat stress
• Coolant loss caused by worn or damaged reservoir caps and sensors
• Overheating issues related to coolant containment failure
• Coolant contamination from degraded plastic materials
• Difficulty in installation with non-OE replacement parts

Installation Notes and Tips

The Rein Engine Coolant Reservoir Kit EPK0151 is designed for direct replacement, matching OEM dimensions and mounting points. When installing, ensure the sensor and cap are properly connected and sealed to maintain system integrity. It is recommended to inspect surrounding hoses and clamps for wear during installation. Proper coolant levels should be verified after installation and the system bled of air to prevent overheating.

Quality Assurance and Warranty

Produced from virgin plastic that meets or exceeds original equipment specifications, this Rein expansion tank kit offers durability and resistance to heat cycle wear. Manufactured in China, the product undergoes quality control to ensure fitment and function. While specific warranty details are not provided, Rein products typically align with industry standards for replacement cooling system components.