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Home >> Volkswagen >> 2018 >> Beetle S, 2D Hatchback >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (2.0L - Fuel Mixture Preparation, Fuel Injection - Engine Code(S): CJAA & CVCA (Convertible)) >> 23 Fuel Mixture Preparation, Fuel Injection >> Diagnosis And Testing >> Fuel System, Performing Leak Test >> Test Sequence

Test Sequence

WARNING: This page is about a different car, the 2015 Volkswagen Beetle, 2014 Volkswagen Beetle, and 2013 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the engine cover. Refer to ENGINE COVER .

-- Let the engine run a few minutes at idle and then stop it. The fuel system bleeds itself.

-- Check the entire fuel system for leaks.

If there are leaks despite correct tightening specifications, replace the affected component.

-- Perform a road test where the accelerator pedal is pressed all the way down at least one time. Then check the high pressure area again for leaks.

NOTE:

Follow all Safety Precautions during the road test. Refer to ROAD TEST WITH TESTING EQUIPMENT SAFETY PRECAUTIONS .

If there is still air in the fuel system, the engine may switch to emergency mode during the road test. Turn off the engine and erase the fault stored in the DTC memory. Refer to Vehicle Diagnostic Tester "Guided Functions".

-- Install the engine cover. Refer to ENGINE COVER .