with a Anti-Theft Immobilizer

with a Anti-Theft Immobilizer

Special tools, testers and auxiliary items required

• Locking Pliers

• Saw Set (V.A.G 1561/14)

• Electric Knife (V.A.G 1561 A)

• Hot Air Gun from the Wiring Harness Repair Kit (VAS 1978 B)

• If the Engine Control Module (ECM) will be replaced, connect the vehicle diagnostic tester and perform the "Replacing Engine Control Module" guided function.

Removing

- Turn off the ignition.

- Remove the windshield wiper arms.

- Remove the plenum chamber cover.

- Remove the plenum chamber bulkhead.

• The threads of the shear bolts are equipped with locking fluid. By heating the shear bolts using a hot air gun, the inhibition effect of the locking fluid is lowered.

Cover the wires, connectors and control modules near the ECM to prevent them from being burned.

Perform the adjustments on the hot air gun - 4 - as shown:

- Turn the potentiometer for the temperature adjustment - 2 - to maximum heat output (600 °C (1112 °F)).






- Move the two stage switch for air quantity - 3 - to position 3.

By heating the shear bolts, parts of the protective housing are heated intensely. Wear protective gloves to prevent injuries.

- Guide the nozzle of the hot air gun onto the shear bolts.

- Turn the heat gun on and heat the bolts.

- Remove the bolts using the locking pliers.

• If the bolts cannot be removed, cut into the heads so two parallel surfaces are formed - arrows - and then remove them.






- Insert a screwdriver - A - between the protective housing and retaining plate - arrow -.






- Pry the protective housing upward using the screwdriver - A - and pull it off sideways from the retaining plate - arrow -.






- Disconnect the front connector - 1 - from ECM.






- Pry up the locking mechanism - 2 - slightly.

- Then slide the ECM out of retainer - arrow -.

- Disconnect the rear connector from the ECM.

Installing

- Connect and lock the rear connector to the ECM.

- Slide the ECM (ECM into the retaining plate.

- Connect and lock the front connector to the ECM.

- Slide the protective housing onto the retaining plate.

- Tighten the shear bolts - 1 - uniformly until the bolt heads shear off.






- Install the plenum chamber bulkhead.

- Install the plenum chamber cover.

- Install the windshield wiper arms.