Renault 2000 Megane Technical Note page 85

CLEANING
It is absolutely forbidden to use the following when
cleaning the injector:
– a metallic brush,
– an emery cloth,
– an ultrasound cleaner.
To clean the nose of the injector, let it soak in
degreaser, then wipe is with a lint-free cloth.
Clean the injector point.
DIESEL EQUIPMENT
Injectors
REFITTING
Change the washer beneath the injector.
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DI1326