GLI L4-2.0L Turbo (CCTA) (2008)
Engine Control Module: Service and Repair
Engine Control Module With Anti-Theft Immobilizer
Engine Control Module With Anti-Theft Immobilizer
Special tools, testers and auxiliary items required
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Electric knife V. A. G 1561 A with saw set V. A. G 1561/14
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Hot air gun from wiring harness repair kit VAS 1978
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Vehicle diagnosis tester for example vehicle diagnosis, testing and information system VAS 5051 B (not illustrated)
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Locking pliers
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Protective gloves
NOTE: If the engine control module is to be replaced, connect the vehicle diagnostic tester and perform "Guided Function, Replacing Engine Control
Module".
Removing
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Switch off ignition.
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Remove wiper arms and plenum chamber cove.
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Remove plenum chamber bulkhead.
NOTE: Thread of shear bolts is equipped with locking compound. By heating the shear bolts using the hot air gun, the inhibition effect of the
locking compound is lowered.
CAUTION: Cover the wires, the harness connectors and the control modules in close vicinity of Engine Control Module (ECM) to
prevent damage from burning.
Set hot air gun - 4 - as shown:
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Turn potentiometer for temperature adjustment - 2 - to maximum heat output (600 degree C).
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Move two stage switch for air quantity - 3 - to position 3.
CAUTION: By heating the shear bolts, parts of the protective housing are heated intensely. Wear protective gloves to prevent injuries.
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Guide nozzle of hot air gun on to shear bolts.
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Switch on hot air pistol and heat shear bolt for approximately 20 to 25 seconds.
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Remove shear bolt using pliers on bolt head.
The procedure for second shear bolt is exactly the same.
If bolts cannot be removed: