Carbon Cleaning (Intake Decarbonising)
Carbon cleaning removes carbon deposits from intake valves, ports, EGR parts or the intake manifold.
What is Carbon Cleaning (Intake Decarbonising)?
Methods include walnut-shell blasting, chemical cleaning and manual cleaning. It is common on direct injection petrol engines. Diesel intake manifolds can also clog. Crankcase ventilation oil and EGR soot are the main sources of deposits; checking the PCV system and driving at higher loads occasionally can slow build-up. Fuel additives rarely help on direct-injection intake valves because the fuel never reaches them.
How it works
Deposits are softened or blasted away to restore airflow.
Why it matters for your car
Heavy deposits cause misfires and lack of power. Cleaning treats the result, not the cause.
Other terms
- Apple CarPlay
- Battery Passport (EU)
- Carburettor
- Driving In Fog
- Electronic Brakeforce Distribution (EBD)
- Fuel Pump
- Fuel Pump Control Module (Fuel Pump Driver)
- Green Card (International Motor Insurance)
- Hill Descent Control
- Injector Leak-off Test
- MPV (People Carrier, Minivan)
- Night Vision Assist
- Precharge Circuit
- Seatbelt Load Limiter
- Side Impact Beam (Door Beam)
- Smartphone Integration (Apple CarPlay, Android Auto)
- TPMS (Tyre Pressure Monitoring System)
- Transmission Range Sensor (Gear Selector Switch)
- Two-bucket Wash Method
- Waterless Wash