Removal And Installation: Turbocharger: Notes
Special tools and workshop equipment required
- Bits T10099
- Bit XZN 10T10154
- Torque Wrench (5-50 Nm) V.A.G 1331
- Spring Type Clip Pliers VAS 5024A
- Engine Bung Set VAS 6122
If mechanical damage is found on the turbocharger, for example, a destroyed compression wheel, it is not enough to just replace the turbocharger. Perform the following steps to prevent subsequent damage.
- Clean all oil lines.
- Change the engine oil and the oil filter.
- Check the air filter housing, the air filter element and the intake hoses for contamination.
- Check the entire charge air circuit and the cooler for contamination.
If contaminants are found in the charge air circuit, the circuit must be cleaned and the cooler replaced if necessary.
The oil supply line must be replaced when installing a new turbocharger.
Removing
-- Remove the engine cover. Refer to ENGINE COVER .
-- Remove the air filter housing. Refer to AIR FILTER HOUSING .
-- Remove the noise insulation. Refer to Description and Operation .
-- Remove the right front wheel.
-- Remove the right front rear wheel housing liner. Refer to Removal and Installation .
-- Drain the coolant. Refer to DRAINING AND FILLING .
-- Disconnect the connectors -arrows- from the ignition coils with output stages and lay the wiring harness to the side.
-- Disconnect the coolant hose -arrow- from the coolant expansion tank.
-- Disconnect the vacuum line -1- at the separating point -2- and free up the wire.
-- Remove the coolant hoses -arrows- from the coolant pipe.
-- Disconnect the ground wire -3- and remove the bolt -4-.
-- Remove the charge air pipe bolt -arrow-.
-- Loose the hose clamp -2- and lay the charge air pipe on the cylinder head.
-- Seal the turbocharger using plugs from the engine bung set VAS 6122.
-- Remove the bolts -1 though 3- and remove the heat shield and the coolant pipe.
Remove the heat shield bolt -2- using a 6 mm hex socket -A-. The hex socket must be at least 5 cm -B- long. A socket that tapers to 6 mm at the tip is too wide.
-- Remove the bolt and the oil supply line from the turbocharger -4-.
-- Remove the bolts -arrows-.
-- Lift the clamps -1 and 2- and remove the charge air pipe.
-- Remove the right drive axle heat shield bolts -arrows- and shield.
-- Remove the front exhaust pipe with catalytic converter. Refer to FRONT EXHAUST PIPE WITH CATALYTIC CONVERTER .
-- Disconnect the connectors -1 and 2- and free up the wire -arrows-.
-- Remove the bolts -1- using bit XZN 10T10154.
-- Remove the bolt -2-.
-- Remove the banjo bolt -2- and move the coolant line to the side.
-- Remove the bolts -1- for the oil return line.
-- Remove the bolt -3- for the oil supply line.
-- Disconnect the coolant hose -arrow- and move it to the side.
-- Remove the nuts -arrows-.
-- Remove the turbocharger upward.