Removing And Installing Both Exhaust Manifolds With Catalytic Converters

WARNING: This page is about a different car, the 2003 BMW 530i, 2002 BMW 530i, and 2001 BMW 530i. However, it is still accessible from the selected car via links, so may be relevant.

E46 only

Remove microfilter.

Open cable guide on lower section of microfilter housing (2) and feed out cable(s).

Release screws (1) and remove lower section of microfilter housing (2).

Fig 1: Removing Lower Section Of Microfilter Housing

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Assemble special tool 00 0 200 with special tools 00 0 201/00 0 202/00 0 204/00 0 208 and fit.

Secure special tool 00 0 200 to front suspension eye on engine.

NOTE: The supports (1) of special tool 00 0 208 must rest on the bolt connection of both side walls.

Fig 2: Installing Special Tool To Engine

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Tighten the screws (1 and 2).

Fig 3: Tightening Screws (1 and 2)

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Release nuts on engine mount on left and right.

Raise engine with special tool 00 0 200 approx. 5 mm.

Fig 4: Rasing Engine With Special Tool

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Remove exhaust system. See 18 00 020 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (M54)

NOTE: Vehicles with front end reinforcement:

Remove front end reinforcement.

Remove right engine support arm with engine mount.

NOTE: The oxygen sensors are in danger of being damaged when the exhaust manifolds are removed and installed.

If necessary, remove control sensors. Refer to 11 78 510 REPLACING OXYGEN CONTROL SENSOR (M52TU/M54/M56) .

Remove cover from injection valves.

NOTE: Monitor sensors must be marked, risk of mixing up cylinders 1-3 and 4-6.

Unclip the cable from the retainer. Disconnect plug connection.

Unclip cable on rear side of engine from cable guide.

Fig 5: Disconnect Plug Connections At Arrows

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NOTE: Rear exhaust manifold with catalytic converter can only be removed after front exhaust manifold with catalytic converter has first been removed.

Remove monitor sensor on front exhaust manifold. 18 00 020 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (M54)
Remove front exhaust manifold with catalytic converter.18 00 020 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (M54)
Remove monitor sensor on rear exhaust manifold. 18 00 020 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (M54)
Remove rear exhaust manifold with catalytic converter. 18 00 020 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (M54)

Installation:

Clean sealing faces, replace gaskets.

Coat threads with copper paste.

Replace nuts.

Tightening torque, refer to 11 62 1AZ in ENGINE MECHANICAL - TIGHTENING TORQUES - 530I (E39) .