The carbon deposit sits where the valve seat is located and prevents the valve from fully closing - affecting throttle response, idling and fuel consumption.
Walnut blasting is a standard BMW procedure to physically blast the intake valves at high pressure to remove the carbon deposits.
Check out the before and after in this video, where BMW 335i N54 doing walnut blasting.
#codewerxbeyourcopilot #makebmwgreatagain #bmwsg #bmwsingapore
Ещё видео!