How long does Passat throttle need to be cleaned?

Regarding your question, the throttle body needs to be cleaned regularly. Too much carbon deposit, difficult to start and unstable idle speed. It is recommended that you clean it every 15000 km. If the vehicle runs at high speed for a long time, the cycle of cleaning carbon deposits can be extended appropriately, and it can be cleaned again every 20,000 kilometers. Cleaning the throttle requires the use of special tools to remove the throttle body. After cleaning, you need to use a diagnostic computer to re-match. Manual matching is also possible, but the program is more complicated. If the matching is improper, it will lead to unstable idle speed, or it will be difficult to start and waste engine oil.