Heater water hose LR005566 Auto parts engine coolant hose for Land Rover Thermostat to bottom hose

Product Description:

Heater inlet coolant hose

OE NO.: LR005566 LR005298 LR000931

Applicable vehicle type: For Land Rover

The heater hose is a flexible rubber conduit that circulates engine coolant to the heater core before returning it to the engine, thereby enabling coolant circulation within the heating system. The warmed coolant within the heater core provides heat to the vehicle's passenger compartment. The blower fan forces air over the heater core's heating fins, after which the heat enters the cabin through vents, thus fulfilling the functions of heating and defrosting.

Common faults and causes:

• Hose ageing and cracking: Prolonged exposure to high temperatures and pressure causes the rubber material to gradually harden and lose elasticity, leading to cracks or fractures that result in coolant leakage.
• Joint seepage: Loosening or deterioration of hose clamps, or deformation at connection points due to repeated thermal expansion and contraction, compromises joint integrity and causes coolant leakage.

Fault Diagnosis Methods:

• Visual Inspection: Open the engine compartment and carefully examine the heater hoses for visible cracks, bulges, hardened ageing, or loose connections. Simultaneously check the ground for coolant stains.
• Odour Detection: If a sweet-smelling odour is detected inside the vehicle, it may indicate evaporated coolant from a leak. Inspect the heater hoses for seepage.
• Abnormal Water Temperature: Should the engine temperature gauge indicate an unusually high reading or significant fluctuations, this may indicate a problem with the heater hoses, resulting in impaired coolant circulation.

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