A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
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Remove bolts - 1 -.
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Disconnect connector - 2 - from ignition coils and free up the cable.
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Remove ignition coils with power output stages - 2 - using special tool T40039.
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Remove spark plugs, using spark plug removal tool 3122 B.
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Disconnect 8-pin connector from fuel injectors
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Check compression pressure using compression tester V.A.G 1763 and adapter V.A.G 1763/6.
Note: Using tester: Operating instructions
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Operate starter until tester shows no further pressure increase.
Compression pressure:
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Install spark plugs and ignition coils.
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Read out ECM DTC memory Vehicle Diagnostic, Testing and Information System VAS 5051 in "Guided Fault Finding" function.
Note: By separating the connections, DTCs are stored to memory. After the test, check the DTC memory and erase, if necessary.
Torque specifications