Workshop Manuals Factory service & repair Alfa Romeo
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Transmission (4x4)12 Axles and driveshafts13 Brakes14 Steering15 Suspension and wheels16 Heating, air conditioning and auxiliary units17 Electrical equipment18 Body fittings19 Body panels and frame20 Wiring diagrams and electrical functions21 Wiring harnesses22 Connectors and pin-outs23 Fault diagnosis24 Special tools
Alfa Romeo 159 Factory Service Manual (2005-2011)08 · Engine
08 · Engine

Variable geometry turbocharger r r

Make
Alfa Romeo
Model
159 Factory Service Manual
Year
2005–2011
Section
Engine supercharging system › Variable geometry turbocharger r r
EngineVariable geometry turbocharger r r

VARIABLE GEOMETRY TURBOCHARGER R R

Operation 1064A22 · TURBOCHARGER ASSEMBLY

2.4 JTD 20V

Removing

Op. 1016A10 SOUND-PROOFING COVER - R.R

Op. 1048A51 TURBOCHARGER RIGID AIR INLET HOSE - R.R.

Op. 1048A42 SLEEVE FROM FLOW METER TO TURBO CHARGER AIR INLET PIPE - R + R

Op. 0010T84 COOLANT FOR AIR CONDITIONING SYSTEM - DEHYDRATE AND REPRESSURIZE

Op. 7055B54 UNDER ENGINE PROTECTION/GUARD - R.R.

Op. 4450B04 RIGHT FRONT WHEEL - R.R

Op. 7055B91 RIGHT FRONT WHEEL ARCH LINER - R.R.

Op. 7210E10 R.R. FRONT BUMPER

Op. 1092C26 BELT FROM AIR CONDITIONER COMPRESSOR DRIVING POWER STEERING PUMP - R + R

Op. 1092B68 BELT FROM A/C COMPRESSOR TO ALTERNATOR DRIVE - R + R

Op. 5040A20 AIR CONDITIONING COMPRESSOR - R+R - INCLUDES FLUID LEVEL CHECK AND TOP UP IF NECESSARY

Op. 1072C44 EXHAUST MANIFOLD HEAT SHIELD - R+R

1. Unscrew bolts (1a) securing bracket (1b) to the catalytic converter.

2. Undo the bolt securing bracket (1b) to the engine oil sump and remove it.

3. Undo bolt (3a) securing exhaust pipe (3b) to the engine oil sump.

4. Undo the nuts securing exhaust pipe (3b) to the catalytic converter and move it to one side.

- Remove the gasket.

VARIABLE GEOMETRY TURBOCHARGER R R

1. Unscrew the exhaust gas temperature sensor from the catalytic converter.

VARIABLE GEOMETRY TURBOCHARGER R R

1. Undo the engine oil delivery pipe connector, engine crankcase side.

VARIABLE GEOMETRY TURBOCHARGER R R

1. Undo the bolts securing the engine oil return pipe, engine oil sump side.

VARIABLE GEOMETRY TURBOCHARGER R R

1. Unscrew bolts (1a) securing exhaust gas pipe (1b) for the EGR.

VARIABLE GEOMETRY TURBOCHARGER R R

1. Undo the nuts securing the exhaust manifold to the cylinder head and remove it complete with turbocharger and catalytic converter.

- Remove the gasket.

VARIABLE GEOMETRY TURBOCHARGER R R

1. Undo nuts (1a) securing exhaust manifold (1b) to the turbocharger and remove it.

2. Loosen collar (2a) and disconnect catalytic converter (2b) from the turbocharger.

VARIABLE GEOMETRY TURBOCHARGER R R

1. Undo connector (1a) and remove turbocharger engine oil supply pipe (1b).

2. Undo bolts (2a) and remove turbocharger oil return pipe (2b).

VARIABLE GEOMETRY TURBOCHARGER R R

Refitting

- Place the turbocharger engine oil return pipe back in position and tighten the turbocharger-side bolts to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Engine oil supply pipe from turbochargerBoltM6(turbocharger side) 0.8 - 1.02.4 JTD 20V

- Place the engine oil supply pipe back in position and tighten the turbocharger-side connector to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Engine oil supply pipe to turbochargerConnectorM10(turbocharger side) 1.5

1.9 JTD 8V

1.9 JTD 16V

2.4 JTD 20V

- Connect the catalytic converter to the turbocharger and fasten it using the collar.

- Tighten the nuts securing the exhaust manifold to the turbocharger to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Exhaust manifoldNutM8(turbocharger side) 2.3 - 2.82.4 JTD 20V

- Fit a new gasket onto the exhaust manifold.

- Place the exhaust manifold complete with turbocharger and catalytic converter back in position and secure it to the cylinder head by tightening the nuts to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Exhaust manifoldNutM8(cylinder head side) 2.3 - 2.82.4 JTD 20V

- Tighten the bolts securing the exhaust gas pipe for the E.G.R. to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Exhaust gas pipe for E.G.R.BoltM8(exhaust manifold side) 2.3 - 2.82.4 JTD 20V

- Tighten the bolts securing the engine oil return pipe, oil sump side, to the specified torque.

ComponentFasteningdiaValue (daNm)Validity
Engine oil supply pipe from turbochargerBoltM6(engine block side) 0.8 - 1.02.4 JTD 20V

- Tighten the engine oil delivery pipe connector, engine crankcase side, to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Engine oil supply pipe to turbocharger - crankcase sideConnectorM122.2 ÷ 2.7

1.9 JTD 8V

2.4 JTD 20V

- Tighten the exhaust gas temperature sensor onto the catalytic converter.

- Place the exhaust pipe complete with new gasket back in position and secure it to the catalytic converter by tightening the nuts to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Intermediate exhaust pipe with flexible sectionNutsM8(catalytic converter side) 2.2 - 2.6

1.9 JTD 8V

1.9 JTD 16V

2.4 JTD 20V

- Tighten the bolt securing the exhaust pipe to the engine oil sump.

- Place the bracket back in position and secure the bolt fastening it to the oil sump.

- Tighten the bolts securing the bracket to the catalytic converter.

Op. 1072C44 EXHAUST MANIFOLD HEAT SHIELD - R+R

Op. 5040A20 AIR CONDITIONING COMPRESSOR - R+R - INCLUDES FLUID LEVEL CHECK AND TOP UP IF NECESSARY

Op. 1092B68 BELT FROM A/C COMPRESSOR TO ALTERNATOR DRIVE - R + R

Op. 1092C26 BELT FROM AIR CONDITIONER COMPRESSOR DRIVING POWER STEERING PUMP - R + R

Op. 7210E10 R.R. FRONT BUMPER

Op. 7055B91 RIGHT FRONT WHEEL ARCH LINER - R.R.

Op. 4450B04 RIGHT FRONT WHEEL - R.R

Op. 7055B54 UNDER ENGINE PROTECTION/GUARD - R.R.

Op. 0010T84 COOLANT FOR AIR CONDITIONING SYSTEM - DEHYDRATE AND REPRESSURIZE

Op. 1048A42 SLEEVE FROM FLOW METER TO TURBO CHARGER AIR INLET PIPE - R + R

Op. 1048A51 TURBOCHARGER RIGID AIR INLET HOSE - R.R.

Op. 1016A10 SOUND-PROOFING COVER - R.R

Parts & tools for this job Staging For 2005 Alfa Romeo 159

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