Where is the Audi A4L throttle? How often should A4L throttle be cleaned?

The throttle of Audi A4L is behind the engine air intake, behind the engine air filter and in front of the intake manifold, as shown in the following figure.

The battery, fuse box and oxygen sensor are all under the protective cover.

throttle valve

Brake oil pot

Air filter

Coolant tank

Open the computer

Glass water

How often should the Audi A4L throttle be cleaned?

The accelerator of A4L needs to be cleaned once when driving for about 20-30 thousand kilometers. If it is not too dirty, you can directly clean the throttle with cleaning agent without disassembling the throttle. However, it can be cleaner to remove the throttle valve for cleaning. The specific cleaning steps are as follows:

1. Find the position of the throttle valve, which is located behind the air inlet and connected to the air filter;

2. Remove the hose connecting the throttle valve and the air cleaner first, and then remove the air cleaner assembly;

3. Then remove the throttle cable, unscrew the fixing bolt and remove the throttle;

4. Use special cleaning agent or carburetor cleaning agent, spray it on the throttle, wait for the organic solvent to dissolve the carbon deposit, and dry it for 1-2 minutes.

In addition to the above methods, you can also use the cleaning method without removing the throttle. When the engine is running, the cleaning agent can be directly injected into the throttle. The practice of many 4S shops and maintenance points is to spray cleaning agent into the accelerator while stepping on it. At this time, the car will emit white smoke, mainly because the cleaned stains are strongly ignited by the suction cylinder and then discharged. This cleaning method is relatively more harmful to the vehicle. Under normal circumstances, it is best to disassemble and clean the vehicle without causing too much damage to the vehicle.