Land Rover LR4 coolant leak with warning light activated on Land Rover LR4

Some Land Rover LR4 owners report experiencing coolant leak issues, often accompanied by a warning light. Common problems leading to these leaks include issues with hoses, water pumps, coolant expansion tank sensors, and heater core components. Many owners find that checking the coolant level is a crucial first step; if it is below the minimum line, topping it up with the appropriate coolant is recommended. A low coolant level warning may also indicate a faulty sensor or a fractured coolant reservoir, necessitating its replacement for effective resolution. In cases where no visible leaks are apparent, some owners discover the need to inspect under the intake manifold for hidden hose or pipe leaks. Additionally, a failing leak detection pump can be a significant cause of coolant leaks, often due to wear, electrical issues, or damaged wiring. To accurately identify leaks, some owners utilize pressure testing, monitoring for significant drops in pressure that may indicate leaks in areas such as the crossover pipes and water pump. Addressing these issues promptly is essential for maintaining the vehicle's performance and preventing further complications.