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Removing and installing O-rings for unit injector > < Removing and installing unit injector

Golf Mk5

Cleaning unit injectors (engine codes BMN, BKP, BMA, BUZ and BMR)
Cleaning unit injectors (engine codes BMN, BKP, BMA, BUZ and BMR)
Special tools and workshop equipment required
t  Ultrasonic cleaner -VAS 6418-
t  Mounting plate for unit injectors -VAS 6418/3-
t  Cleaner Tickopur -D 600 300 A2-
  Note
t  Cleaning the unit injectors may only be carried out using the support plate for unit injectors -VAS 6418/3-. Under no circumstances should the unit injector be immersed in cleaning fluid.
t  The unit injectors must be operated within 2 hours after they have been cleaned.
t  To reduce the warm-up period of the cleaning fluid, it is recommended that warm tap water is filled into the system and the cover of the unit is fitted.
t  Change cleaning fluid weekly and only clean max. five sets of unit injectors per bath.
t  Replenish evaporated cleaning fluid with tap water.
t  Do not clean any other components in the cleaning fluid.
t  Do not clean the outside of the unit injectors mechanically (wire brush, abrasives, etc.).
t  Renew O-rings, ball studs, adjusting and securing bolts.
Procedure
   
–  Attach drain tap -arrow- from ultrasonic cleaner -VAS 6418- to right-hand side of housing.
–  Fill cleaning unit with 1870 ml tap water and 330 ml cleaner Tickopur -D 600 300 A2-.
  N23-10262
–  Set mounting plate for unit injectors -VAS 6418/3- onto cleaning unit.
  WARNING
Before starting ultrasonic cleaner -VAS 6418- it is essential that the safety information is observed in the operating instructions.
The ideal fluid level is reached when the cleaning agent is approx. 1-10 mm above the base of the support plate. The ultrasonic cleaner -VAS 6418- could become damaged if the fluid level is too low.
–  Insert the unit injectors in the guides of the support plate.
–  Switch on cleaner by pressing on/off button -C-.
  N23-10263
–  Turn rotary temperature switch -B- until lamp indicator is at 70° C warm-up temperature
–  Set rotary switch for operating period -A- to „∞“-arrow- (continuous operation).
  N23-10264
–  Press button ►-D- for longer than 2 seconds to switch the unit on.
  Note
Temperature-controlled cleaning is now activated. During the warm-up period, ultrasonic waves are activated to mix the cleaning fluid. Once the preselected temperature is reached, the ultrasonic waves are switched to continuous operation. Cleaning time must be at least 120 minutes and cleaning only starts at a temperature of at least 70 °C.
–  After 120 min. of cleaning, switch the unit off by pressing button ►-D-.
–  Take unit injectors out of mounting plate and dry at ambient air for max. 1 hour.
–  Reinstall unit injectors → Chapter.
  Caution
The unit injectors must be operated within 2 hours after they have been cleaned, to prevent possible corrosion being caused by the cleaning fluid.
  N23-10264

Removing and installing O-rings for unit injector > < Removing and installing unit injector