A3 L4-20L Turbo CBFA Fuel Injector Service and Repair Instructions
![background image](/audi/a3/l4-2.0l_turbo_(cbfa)/Page-1204005.png)
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Replace O-ring on fuel injector. Lubricate O-ring with clean engine oil before installing.
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The Teflon seal must not be oiled.
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Using included nylon brush (T10133/4), thoroughly clean high pressure fuel injector bores in the cylinder head before installing the fuel injectors.
‹› The Teflon sealing ring of fuel injector may not be oiled or greased.
‹› When installing the injector valve, make sure there is no cleaning product or oil in the holes in the cylinder head.
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Using assembly drift (T10133/9), press fuel injector into the bore in the cylinder head until it stops (free of oil and grease). Make sure fuel
injectors are positioned correctly in cylinder head.