Jetta L4-2.0L (AZG) (2004)
Continue for all engines
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Pull fuse out of fuse holder.
Engines: AEG, AVH, AZG, BBW, BEJ, BER, BEV, BHP: Fuse No. 32
Note: Removing the fuse 32 interrupts the voltage supply to the injectors.
Engines: APK, AQY: Fuse No. 28 fuel pump.
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Disconnect connectors from outer injectors.
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Pull spark plug connectors off with tool T101 12
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Remove spark plugs with spark plug socket 31 22B.
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Check compression pressures using compression tester V.A.G. 1763 and adapter V.A.G. 1763/6.
Note: Using the compression tester - Operating instructions.
Models with throttle (accelerator) cable
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Use a second technician to fully depress accelerator pedal.
Continuation for all engines
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Use a second technician to operate starter motor.
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Operate starter until tester shows no further pressure increase.
Compression pressure values:
New: 10 to 13 bar
Wear limit: 7.5 bar
Permissible difference between all cylinders: 3 bar
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Adapt engine control module to throttle valve control module, Refer to Adapting functions and components.
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Generate readiness code again if DTC memory has been erased or engine control module was disconnected from permanent positive.