Rein EPT0268 Engine Coolant Reservoir

Overview

Rein EPT0268 is an engine coolant reservoir built for Mercedes-Benz applications that require a replacement tank without a cap. It is made from plastic and follows OE-style fitment expectations for a direct cooling system service part.

Fits 2003-2011 Mercedes-Benz E-Class and CLS-Class applications, with coverage for multiple sedan and AMG variants. The Rein EPT0268 is a practical choice when the original expansion tank shows age-related wear, cracking, or coolant loss.

Key Features

• OE-quality expansion tank construction from Rein Automotive.
• Virgin plastic material with no regrind for improved durability.
• Built to match original fit, form, and function expectations.
• Cap not included for applications that reuse the existing cap.
• Cross-references Genuine 2115000049 and Nissens 996263 for the same application.

Detailed Description

The Rein EPT0268 engine coolant reservoir is engineered for Mercedes-Benz cooling systems that need a replacement expansion tank with OE-style dimensions and material quality. Rein states these tanks are produced from virgin plastic rather than regrind, which helps reduce cracking from repeated heat cycles and supports long service life. This part number, EPT0268, is listed for E-Class and CLS-Class vehicles across several model years, including E320, E350, E500, E550, E63 AMG, CLS550, and related variants.

For buyers searching for a Mercedes-Benz E350 coolant reservoir, Mercedes-Benz E320 expansion tank, or Mercedes-Benz CLS550 coolant reservoir, this part number provides a focused replacement option. The EPT0268 is also referenced by part number 2115000049 in Genuine listings and 996263 in Nissens listings.

What It Helps Address

• Coolant leaks from a cracked or aging reservoir.
• Loss of coolant level caused by plastic fatigue.
• Reservoir replacement after heat-cycle damage.
• Service needs when the original tank is no longer reliable.

Installation Notes

Verify the vehicle listing and note that this application is specified without a cap. Mounting hardware and mounting brackets are not included. Confirm the existing cooling system cap and related components before installation.

Quality Assurance

Rein Automotive positions this reservoir as an OE-quality replacement designed to install, fit, and perform as the original manufacturer intended. The virgin-plastic construction is used to improve resistance to cracking and support durability in cooling system service.