18 32 005 Removing and installing/replacing catalytic exhaust-gas converter (N14)

WARNING: This page is about a different variant/trim than selected.

WARNING: Scalding hazard!
Only perform these tasks after exhaust system has cooled down.

Necessary preliminary tasks:

NOTE: The oxygen sensors are in danger of being damaged when the exhaust manifolds are removed and installed.
Remove control sensor. See 11 78 510 REMOVING AND INSTALLING/REPLACING CONTROL SENSOR (N14) .
Remove monitor sensor. See 11 78 545 REMOVING AND INSTALLING/REPLACING MONITOR SENSOR (N14) .

Release screw and remove holder (1).

Fig 1: Identifying Holder

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Release screws and remove upper heat shield (1).

Tightening torque 11 65 7AZ .

Fig 2: Locating Upper Heat Shield Screws

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Release screws and remove lower heat shield (1).

Tightening torque 11 65 7AZ .

Fig 3: Locating Lower Heat Shield Screws

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Unscrew nuts.

Installation:

Replace nuts.

Tightening torque 18 31 3AZ

Unscrew nuts (1).

Tightening torque 18 31 4AZ

Fig 4: Identifying Nuts

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Loosen screws and nut.

Remove exhaust manifold (1).

Installation:

Fig 5: Identifying Exhaust Manifold

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