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)

Conditions

• The ultrasonic cleaning unit (VAS 6418) must be filled to the upper edge of the holes with cleaning fluid (VAS 6418/2) (see the inset view).






• Follow the safety precautions and the instructions for the ultrasonic cleaning unit (VAS 6418). Refer to operating Instructions.

Procedure

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

- Install the fuel injectors - 1 - into the injector module mounting plate (VAS 6418/1) - 2 -.






- Dip the fuel injectors and the injector module mounting plate (VAS 6418/1) into the cleaning fluid (VAS 6418/2).

- Adjust the temperature to 50 degrees 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 degrees.

- Always replace the combustion chamber seal (Teflon seal) for each fuel injector after cleaning. Refer to=> [ Fuel Injector Seal ] Fuel Injector Seal.

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