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Home >> Audi >> 2017 >> S3 Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (DIESEL FUEL INJECTION (4-Cylinder TDI Common Rail 1.6L; 2.0L 4V Engine) -- (A3 SEDAN)) >> 23 Diesel Fuel Injection >> Fuel Injectors/High Pressure Reservoir (Fuel Rail) >> Open Fuel Injectors, Checking >> Fuel System Leak Test

Fuel System Leak Test

WARNING: This page is about a different car, the 2016 Audi A3 and 2015 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

-- Let the engine run a few minutes at idle without pressing the accelerator pedal and then stop the engine. The fuel system bleeds itself.

-- Check the entire fuel supply system for leaks.

Replace any leaking parts.

-- Perform a road test where the accelerator pedal is fully depressed at least one time. Then check the high pressure system again for leaks.

-- Install the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

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