Get Exhaust system -> 1.2 Removing and installing Lambda probes Guide for Volkswagen Touareg SUV First Generation (2002-2010)

Touareg 2003 ➤

8-cylinder injection engine - Edition 11.2011

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19 - Catalytic converter

20 - Starter catalytic converter

❑ Installed in exhaust gas stream of cylinder bank 2.

21 - 25 Nm

22 - Bracket

❑ For supporting gearbox on left.

23 - 25 Nm

24 - Exhaust manifold

❑ For cylinder bank 2.

❑ Removal only possible with engine removed.

❑ Removing ⇒ page 149

25 - Gasket

❑ Renew.

❑ Note installation position.

Removing and installing exhaust manifold

– Oil dipstick guide tube retainer -1- must be removed to enable

removal of cylinder bank 2 exhaust manifold.

– Then disconnect refrigerant line -2- and seal connections with

a clean cloth.

– Now unscrew securing nuts -arrows-.

1.2

Removing and installing Lambda

probes

Special tools and workshop equipment required

1. Removing and installing parts of exhaust system

149

Touareg 2003 ➤

8-cylinder injection engine - Edition 11.2011

♦ Open ring spanner with 3/8" drive (flared spanner)

♦ Lambda probe open ring spanner set -3337-

Removing:

– Remove cover for engine and inta^lk^ke manifold.

– Remove intake hoses -1- and -2-. Loosen hose clip for crank‐

case breather valve -3- and pull crankcase breather valve off

hose connection.

– Remove intake air duct to throttle valve module -J338- .

– Disconnect connector for respective Lambda probe and lay

cable to Lambda probe aside.

1 - Lambda probe after catalytic converter -G130-

2 - Lambda probe -G39-

3 - Lambda probe 2 after catalytic converter -G131-

4 - Lambda probe 2 -G108-

Note

Connector for cylinder bank 1 = black, connector for cylinder bank

2 = brown

150

Rep. gr.26 - Exhaust system

Touareg 2003 ➤

8-cylinder injection engine - Edition 11.2011

Lambda probe 2 -G108- (bank 2, probe 1):

– Unscrew Lambda probe 2 -G108- -item 1-.

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Lambda probe -G39- (bank 1, probe 1):

– Unscrew Lambda probe -G39- -item 2-.

Lambda probe 2 after catalytic converter -G131- (bank 2, probe

2) and Lambda probe after catalytic converter -G130- (bank 1,

probe 2):

– Unscrew bolts and remove rear noise insulation tray -2-.

Lambda probe 2 after catalytic converter -G131- (bank 2, probe

2):

– Unscrew Lambda probe 2 after catalytic converter -G131-

-item 2-.

1. Removing and installing parts of exhaust system

151

Touareg 2003 ➤

8-cylinder injection engine - Edition 11.2011

Lambda probe after catalytic converter -G130- (bank 1, probe 2):

– Unbolt heat shield for front propshaft -arrows-.

– Unscrew Lambda probe after catalytic converter -G130-

-item 1-.

Installing:

– If reusing Lambda probe, lubricate threads with high temper‐

ature paste -G 052 112 A3- . Paste may not come into contact

with slots on probe body.

– Restore wiring to original position.

Further installation is carried out in the reverse order.

Note

♦ Threads of new Lambda probes are already coated with as‐

sembly paste; the paste must not get into the slots on the probe

body.

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♦ When installing, the Lambda probe electrical wiring must al‐

ways be reattached at the same locations to prevent the

Lambda probe wiring from coming into contact with the ex‐

haust pipe.

♦ Fit all cable ties in the original position when installing.

Specified torques

Component

Nm

50

9

Lambda probe in exhaust pipe

Heat shield to final drive

Air pipe to bracket

9

152

Rep. gr.26 - Exhaust system

Exhaust system -> 1.2 Removing and installing Lambda probes for Your Volkswagen Touareg SUV First Generation (2002-2010)

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