Cooling System Bleeding
Bleeding the cooling system removes trapped air after coolant work.
What is Cooling System Bleeding?
Air pockets cause hot spots and poor heater output. Some cars have bleed screws. Some require a vacuum filler or a specific procedure. Running the engine with the heater on maximum and the expansion tank open, where permitted, helps air escape. Squeezing the upper radiator hose can push air bubbles out. Some cars have an electric water pump with a service mode for bleeding.
How it works
Air rises and escapes while coolant fills the system.
Why it matters for your car
Trapped air can cause overheating and gauge fluctuations. Follow the manufacturer's procedure.
Other terms
- A/C Compressor Clutch
- Actuator Test (Output Test)
- Android Auto
- Brake Disc Minimum Thickness
- Clutch Control
- Clutch Kit
- Convertible Roof (Soft Top Or Folding Hard Top)
- Engine Sludge
- Misfuelling (Wrong Fuel)
- Oscilloscope
- Pending Code
- Plastic Trim Restoration
- Preconditioning
- PTC Heater (Electric Auxiliary Heater)
- Radial Tyre
- Silicon Carbide (SiC) Inverter
- Solar Charging
- Throttle Body
- Tyre Hotel (Tyre Storage Service)
- Wheel Balancing