This water expansion tank is an integral part of the engine's cooling system, providing a reservoir for coolant expansion and contraction due to temperature changes. Manufactured to Volvo's strict specifications, it maintains system integrity better than a cracked or deformed tank. Observable issues include coolant leaks around the tank, visible cracks, or a consistently low coolant level despite no apparent leaks elsewhere.
Always verify with serial number before ordering.
Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included
From the same category — may also be needed
Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
The first sign of a problem is often a visible coolant leak originating from the tank itself or its connections. If ignored, the tank can crack further, leading to significant coolant loss and potential engine overheating. Continued operation with a leaking expansion tank can result in costly engine damage due to insufficient cooling.
Ensure the new tank is securely mounted and all hose connections are tight to prevent leaks. Do not overfill the coolant system immediately; allow the engine to reach operating temperature and then top off as needed.
Inspect the radiator cap, hoses, and water pump for wear or leaks when replacing the expansion tank.