How to clean Passat's throttle

1. Cleaning the throttle: remove the engine trim cover, remove the throttle, clean it with carburetor cleaner, dry it with cotton cloth and install it. Cleaning the throttle basically every time we go to the 4S shop, the maintenance staff will advise us to do so. In general, the cleaning cycle of the throttle valve is 20,000 kilometers.

2. Clean up the carbon deposit inside the engine: open the engine oil cover, pour the whole tank of cleaning agent (mixed with the old engine oil), cover the engine oil cover, and turn off the engine after the ignition idle speed 10 minutes. Clean the carbon deposit inside the engine. This cleaner can dissolve the deposits such as sludge, colloid, moisture and metal debris inside the engine, reduce the pollution of new engine oil and prolong the service life of the engine. Its cleaning cycle is generally 30 thousand kilometers once.

3. Clean up the carbon deposit in the oil circuit: Before refueling, add the whole bottle of fuel additive to the fuel tank. Read the instructions carefully. How many liters is your car's fuel tank? Usually, a bottle of fuel additive is used in a 50-80 liter fuel tank. Cleaning the carbon deposit in the oil circuit includes cleaning the fuel injector, combustion chamber, spark plug, throttle and other parts. The purpose is to solve the intractable diseases such as insufficient horsepower, oil consumption, wheezing, poor acceleration or difficult start-up caused by carbon deposit, colloid and dirt in the oil system.

4. Remove the carbon deposit in the air intake system:

Buy a bottle of cleaning agent for air intake system, pour it into the liquid storage tank of special cleaning equipment, connect the air intake system, and suck the cleaning agent into the air intake by vacuum to achieve the purpose of cleaning. Cleaning the carbon deposit in the intake system mainly refers to cleaning the carbon deposit in the intake and intake manifold. Its purpose is to remove carbon deposits in the intake system, increase intake flow and speed, and reduce engine jitter and idle instability.

I hope it helps you.