Rein EPT0012 Engine Coolant Reservoir

Overview of Rein Engine Coolant Reservoir EPT0012

The Rein Engine Coolant Reservoir (part number EPT0012) is designed specifically for select BMW models including the 318i, 318is, 318ti, 525i, 525iT, and Z3. Manufactured from virgin plastic, this expansion tank meets or exceeds original equipment specifications to ensure reliable performance under heat cycling conditions.

• Produced from virgin plastic meeting or exceeding OE specifications
• Resistant to cracking and wear caused by repeated heat cycles
• Direct fitment for easy installation on compatible BMW models
• Manufactured to strict engineering standards for durability

Product Details and Specifications

The Rein EPT0012 engine coolant reservoir is engineered to maintain optimal coolant levels and withstand the thermal stresses typical in BMW engines. Its construction from high-quality virgin plastic prevents cracking and degradation over time, which can lead to coolant leaks and engine overheating. The reservoir dimensions are approximately 11.81 inches in length, 5.9 inches in width, and 3.93 inches in height, with a weight of 0.919 pounds, making it a direct replacement part that fits precisely without modification.

Compatible BMW Models and Applications

This expansion tank is application-specific and compatible with the following BMW vehicles:

• BMW 318i
• BMW 318is
• BMW 318ti
• BMW 525i
• BMW 525iT
• BMW Z3

Using the Rein EPT0012 ensures proper coolant system function and helps maintain engine temperature stability in these models.

Common Issues Addressed by the Rein Coolant Reservoir

• Cracking or leaking of the original coolant reservoir
• Coolant loss due to reservoir wear or damage
• Overheating caused by insufficient coolant containment
• Degradation from heat cycles leading to reservoir failure
• Difficulty in installation due to non-OE replacement parts

Installation Notes and Tips

The Rein EPT0012 is designed for direct fitment, allowing for straightforward installation without the need for modifications. It is recommended to drain the coolant system before removal of the old reservoir and to inspect hoses and clamps for wear during replacement. Proper torque specifications should be followed to avoid damage to mounting points.

Quality Assurance and Warranty

Rein expansion tanks are manufactured under strict engineering standards to meet or exceed OE quality. The use of virgin plastic material ensures durability and resistance to heat-related wear. While specific warranty details are not provided, Rein products typically adhere to industry quality controls to support reliable long-term use in BMW vehicles.