Procedures

Fuel Injectors, Cleaning

Special tools, testers and auxiliary items required

• Ultrasonic Cleaning Unit (VAS 6418)

• Injection Module Mounting Plate (VAS 6418/1)

• Cleaning Fluid (VAS 6418/2)

Cleaning

- Remove the fuel injectors. Refer to => [ Fuel Injectors ] Fuel Injectors.

• Follow the safety precautions and the instructions for the ultrasonic device.

- The ultrasonic device must be filled with cleaning fluid (VAS 6418/2).

• Fill the ultrasonic device up to the upper edge of the holes with cleaner (see the magnified area of the illustration).






- Insert the fuel injector - 1 - all the way into the injector module mounting plate (VAS 6418/1) - 2 -.

- Dip the fuel injectors with the injector module mounting plate (VAS 6418/1) into the cleaning device.






- Adjust the temperature to 50° using the knob - 4 -.

- Set a cleaning time of 30 minutes using the knob - 5 -.

- Switch the ultrasonic device on with the button - 3 -.

• The time begins counting down once the cleaning temperature reaches 50°.

- Replace the Teflon seal after cleaning each fuel injector. Refer to => [ Fuel Injector Teflon Seal ] Fuel Injector Teflon Seal.

- Then, install the fuel injectors. Refer to => [ Fuel Injectors ] Fuel Injectors.