YzusGomumu Engine Coolant Reservoir Tank with Cap for Mercedes-Benz GL/ML/SLS AMG — Direct-Fit, Sensor-Ready Replacement

YzusGomumu Engine Coolant Reservoir Tank with Cap is a direct-fit replacement overflow tank that stores excess coolant, monitors level and temperature, and helps protect Mercedes-Benz cooling systems from overheating and loss of fluid.

This replacement coolant reservoir is engineered for compatibility with a range of Mercedes-Benz GL, ML and SLS AMG models. Built from durable, corrosion-resistant materials and equipped with an integrated sensor port, it restores proper coolant containment and enables real-time level/temperature monitoring when paired with your vehicle’s wiring and gauge system. The unit comes with OE cross-reference numbers so you can verify fitment before purchase.

Which Mercedes-Benz models does this reservoir fit?

The YzusGomumu tank is made to match the original equipment shape and mounting for specific GL, ML and SLS years. Always compare OE numbers and connector positions to ensure a correct swap.

• Compatible years and models: 2007–2009 GL320, 2010–2012 GL350, 2007–2012 GL450, 2008–2012 GL500, 2008–2012 GL550.
• Also fits: 2007–2009 ML320, 2006–2012 ML350, 2010–2011 ML450, 2006–2011 ML500, 2008–2011 ML550, 2007–2011 ML63 AMG.
• SLS AMG coverage: 2011–2015 SLS AMG.

How do I confirm this is the right part for my vehicle?

Before ordering, inspect your existing tank for mounting points, sensor locations, and printed part numbers. Cross-referencing the OE numbers helps guarantee compatibility.

• Compare the listed OE numbers: 1645000049, 603-256, 603256, 164500004928.
• Check sensor port(s) and cap style match your original tank.
• Verify mounting bracket positions and hose connections visually.

What features improve durability and monitoring?

This reservoir is constructed from high-strength, heat-resistant plastic with corrosion-resistant fittings to withstand engine-bay conditions. A sensor-ready design supports real-time alerts for coolant level or excessive temperature when integrated with the vehicle’s systems.

• Rugged polymer resists cracking and coolant corrosion.
• Sensor port for water level/temperature alerts to prevent unnoticed coolant loss.
• Precision molding matches original dimensions to avoid leaks and fit issues.

How will replacing the tank affect my vehicle’s cooling performance?

Installing a sound replacement reservoir ensures coolant is properly stored during heat cycles and returned to the system as needed, maintaining steady engine operating temperatures and reducing the chance of low-fluid warnings.

• Restores correct coolant overflow capacity and venting behavior.
• Eliminates leaks or cracks from old, brittle tanks that cause fluid loss.
• Works with vehicle sensors to provide accurate level/temperature readings.

Who this is for: This YzusGomumu coolant reservoir is aimed at Mercedes-Benz owners, independent mechanics, and fleet technicians who need a reliable, direct-fit replacement for GL, ML or SLS AMG models listed above. It’s a practical choice when the original tank shows cracks, leaks, faded markings, or failing sensor ports and when OE-number verification confirms proper fitment. If you need a durable overflow tank with sensor compatibility to restore coolant containment and monitoring, this product is designed to meet those needs without requiring custom modifications.