Modern direct-injection engines build up carbon on intake valves and inside the combustion chamber. We remove it properly, no shortcuts.
Smoother idle, restored throttle response and reduced emissions.
Many owners see a measurable MPG improvement after a clean.
Recommended every 30,000 to 50,000 miles on direct-injection engines.
For heavily carboned intake valves on VAG, BMW and other DI platforms.
What's included
Every job at PI Motorsport starts with diagnostics and ends with sign-off. No shortcuts, no generic files, no compromises on finish.
Modern direct-injection engines spray fuel directly into the cylinder rather than across the back of the intake valve. That means the intake valves never get washed clean by the fuel, and carbon builds up over time. The result is rough idle, lost throttle response and worse economy.
An engine carbon clean uses either hydrogen, specialist chemistry or walnut shell media blasting to remove that build-up and restore the engine's natural feel.
Hydrogen and chemical cleans are non-invasive, quick and suit most cars as a preventative service. For heavily carboned VAG, BMW and other direct-injection platforms with serious build-up, walnut blasting strips the intake valves back to bare metal.
We assess your car and recommend the right approach. No upselling, no scare tactics.
FAQ
Every 30,000 to 50,000 miles is a good guide for most modern direct-injection cars, sooner if you do a lot of short journeys.
Send your reg and what you're looking for, we'll come back with a proper quote.
