Fuel Injectors, Cleaning
Special tools and workshop equipment required
- Ultrasonic Cleaning Unit: VAS6418
- Mounting Plate for Injection Modules: VAS6418/1
- Cleaning fluid. Refer to the Parts Information.
Cleaning
-- Connect the drain valve -arrow- of the : VAS6418 to the right side of the transmission housing.
-- Fill the ultrasonic device with 2120 mL of settled water and : VAS6418/2 .
Cleaning Fluid Mixture Ratio
- 2100 ml settled tap water and 20 ml : VAS6418/2 .
-- Remove the fuel injectors. Refer to FUEL INJECTORS, REMOVING AND INSTALLING .
-- Place the : VAS6418/1 on the cleaning unit.
Before operating the : VAS6418 pay attention to the safety precautions in the Owner's Manual.
The ideal fluid level is reached when the cleaning fluid is approximately 1-4 mm above the bottom of the mounting plate. A fluid level which is too low can damage the : VAS6418 .
-- Insert the fuel injectors all the way into the guides on the : VAS6418/1 .
-- Switch on the cleaning unit by pressing the on/off button -C-.
-- Set the cleaning time on the knob -A- to 30 minutes.
-- Set the temperature on the knob -B- to 50°C (122°F).
-- Press the → button -D- to start cleaning.
The temperature controlled cleaning is now switched on. During the heating-up phase the ultrasonic switches on the cleaning fluid circulation in intervals. After reaching the pre-selected temperature the ultrasonic is switched on for a long period.
The cleaning must take at least 30 minutes and first begins once a temperature of at least 50°C (122°F) is reached.
-- Replace the combustion chamber seal (Teflon seal) after cleaning each fuel injector. Refer to FUEL INJECTOR SEALS, REPLACING .
-- Then reinstall the fuel injectors. Refer to FUEL INJECTORS, REMOVING AND INSTALLING .