Golf L4-1.8L Turbo (AWW) (2003)
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Remove fuse 32
Note: Removing fuse 32 interrupts the voltage supply to the injectors.
Test conditions
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Engine oil temperature must be at least 30°C.
Work sequence
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Remove engine cover.
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Pull connector(s) off ignition coils.
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Remove ignition coils.
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Remove spark plugs with spark plug spanner 3122B.
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Use a second mechanic to fully depress accelerator pedal.
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Check compressions with compression tester V.A.G 1381N.A.G 1763.
Note: Using the compression tester = Operating instructions.
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Operate starter until tester shows no further pressure increase.
Compression pressure:
New: 10 to 14 bar
Wear limit: 7.0 bar
Permissible difference between all cylinders: 3 bar
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Install spark plugs with spark plug socket and extension 3122B and tighten to 30 Nm.
Vehicles with engine code AWD
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Install ignition coils and tighten to 10 Nm.
Vehicles with engine codes AWP, AWW
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Install ignition coils. During this, make sure secure seating of the ignition coils.
Continued for all vehicles
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Check DTC memory.
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Read out readiness code.
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If the DTC memory has been erased or the engine control module separated from the permanent positive, the readiness code must be generated
again.