A coolant leak should never be ignored. Low coolant can quickly lead to overheating and expensive engine damage. Repair cost depends entirely on where the leak is coming from.
Coolant leak repairs in the UK often range from £80 to £700+, depending on whether the issue is a hose, radiator, thermostat housing, water pump or more serious engine problem.
Small external leaks are usually far cheaper than leaks requiring major dismantling.
Repeated coolant loss means a fault exists. Constantly topping up without repair risks overheating at the worst possible time.
Finding the real leak source early is usually cheaper.
Often around £80 to £180 fitted.
Often around £220 to £500+ fitted.
Often around £300 to £700+ depending on vehicle.
May allow short journeys if coolant is monitored closely.
Driving further can cause major engine damage.
Repair the leak as soon as possible rather than risk breakdown.
No. They usually worsen over time.
Temporary products may help briefly but are not ideal long-term repairs.
Leaks may occur only when hot or may evaporate before you notice.
No. Fans, thermostat and water pump faults can also overheat engines.
