URO URO-010880 Coolant Expansion Tank Reservoir

The URO URO-010880 is a direct-fit coolant expansion tank designed as a quality replacement for Mercedes-Benz vehicles. This coolant reservoir maintains proper fluid levels in the cooling system and accommodates the thermal expansion and contraction of coolant as the engine heats up and cools down.

How It Works:

The expansion tank serves as the highest point in the cooling system, allowing trapped air bubbles to escape while ensuring coolant is always available to the engine. When coolant heats up and expands, the excess is stored in the tank; as the engine cools, that coolant is drawn back into the system to maintain proper pressure and prevent overheating.

Key Features:

• Direct OE-style replacement for Mercedes-Benz cooling systems
• Precision-molded to match original dimensions and connection points
• Resistant to engine heat, thermal cycling, and cracking
• OE-style fittings and connections for hassle-free installation
• Manufactured by URO Parts (APA Industries), a trusted supplier of European vehicle components

Cross-Reference / OEM Part Numbers: 1645000049, 8MA376705721, EPT0009, V30-1861

Installation Note: Early models without a coolant level sensor may require an additional plug kit (OEM #1265000084). It is also recommended to replace the expansion tank pressure cap at the time of installation (sold separately).