Mercedes‑Benz Expansion Tank A2465000049

Description

• Part number A2465000049 (often written as A 246 500 00 49) is a genuine Mercedes‑Benz coolant expansion/overflow tank (reservoir) designed for certain models. eBay+2A to Z Auto Parts+2

• It’s commonly listed for use in vehicles such as A‑Class (W176), B‑Class (W246), GLA (X156) among others. A to Z Auto Parts+2eBay+2

• Typical description: “Coolant radiator reservoir tank, overflow bottle with cap and sensor” for those models. A to Z Auto Parts+1

• Installation considerations: Being the expansion tank, it plays a key role in the cooling system by accommodating thermal expansion of coolant, maintaining correct level, and providing a sensor/over‑flow path. A damaged or cracked tank can lead to coolant loss, air entering the system, overheating, or warnings.

• When replacing: Ensure correct fit including sensor / cap assembly, verify hose connections, check for any cracks or stress marks in the installation area, fill and bleed cooling system as per manufacturer procedure.