Rein EPT0134 Engine Coolant Reservoir

OE Quality Engine Coolant Reservoir

The Rein EPT0134 engine coolant reservoir is an OE-quality expansion tank built for direct replacement on select Mercedes-Benz S-Class applications. It is made from virgin plastic to help maintain durability through repeated heat cycles and reduce the risk of cracking that can lead to coolant loss.

Compatible With Mercedes-Benz S550, S600, S63 AMG, S65 AMG, S560, and Maybach S550, Maybach S600, Maybach S650 applications, Rein EPT0134 is engineered to match original fitment and material expectations for a straightforward repair.

Key Features

• Produced from virgin plastic meeting or exceeding OE material specifications
• Resistant to cracking and wear caused by heat cycling
• Direct-fit design for easier installation
• Manufactured to strict engineering standards for materials and tolerances
• OE-quality expansion tank for cooling system service

Detailed Description

Rein EPT0134 is an engine coolant reservoir designed as an OE-style replacement for Mercedes-Benz S-Class cooling system service. The tank is produced from virgin plastic with no regrind, which helps improve durability and long-term resistance to thermal stress. This construction supports consistent coolant containment in vehicles where expansion tank failure can lead to leaks, low coolant level warnings, or overheating concerns. This part cross-references URO 2225000849 for the same application.

Common Issues This Part May Address

• Coolant leaks from a cracked or aged expansion tank
• Visible plastic deterioration from repeated heat cycles
• Low coolant level warnings caused by reservoir failure
• Loss of cooling system pressure from tank damage
• Replacement needs after inspection reveals reservoir wear

Installation Notes and Tips

Before installation, verify the vehicle application against the part number EPT0134 and inspect connected hoses, caps, and seals for wear. Drain coolant as needed, transfer any required sensors or fittings from the original reservoir if applicable, and confirm the cooling system is properly filled and bled after installation. For fitment reference, this part fits 2014-2017 Mercedes-Benz S550, 2015-2017 Mercedes-Benz S600, 2014-2017 Mercedes-Benz S63 AMG, 2015-2020 Mercedes-Benz S65 AMG, 2018-2021 Mercedes-Benz S560, 2017 Mercedes-Benz Maybach S550, 2016-2017 Mercedes-Benz Maybach S600, 2018-2020 Mercedes-Benz Maybach S560, and 2018-2020 Mercedes-Benz Maybach S650.

Quality Assurance

Rein designs OE-quality expansion tanks to meet original equipment expectations for fit, form, and material performance. The EPT0134 is manufactured to strict specifications and uses virgin plastic construction to support long service life in demanding cooling system conditions.