What To Do First
- Allow the engine to cool before checking coolant levels.
- Check the expansion tank level against the MIN/MAX marks.
- Top up with the correct coolant if required.
- Look underneath the vehicle for fresh coolant leaks.
Common Causes Of Coolant Leaks
🧵 Split Hose Or Loose Clamp
Cooling hoses harden with age and can leak under pressure.
🧊 Radiator Leak
Radiators can crack or corrode causing coolant loss.
🌡 Thermostat Housing Leak
Plastic thermostat housings commonly crack or warp.
🚿 Water Pump Leak
Water pumps can leak from seals or fail internally.
🔥 Heater Matrix Or Pipes
Damp carpets or misted windows may indicate heater leaks.
🧯 Head Gasket Symptoms
Constant coolant loss, white smoke or pressurised hoses may indicate gasket issues.
Can I Keep Driving?
- Small seepage: may allow short journeys if coolant level stays stable.
- Visible coolant dripping: arrange repairs quickly.
- Overheating or steam: stop driving immediately.
- Coolant warning light: allow the engine to cool and check levels safely.
How AutoAid Diagnoses Coolant Leaks
We inspect radiators, hoses, thermostat housings, water pumps and common cooling system leak points to identify the exact source before repairs begin.
Coolant Leak In Warrington?
Send your registration number, postcode and a photo of the coolant leak if possible.