Catalytic Converter, Removing And Installing: Removing

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

-- Release the tabs on the side and remove the cover -1- from the air guide.

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-- Unclip the air guide -2-.

-- Remove the bolt -A-, disconnect the connector -B-, loosen the spring clamp -C- and remove the air filter housing and connecting hose. Pay attention to the mark -D-.

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-- Remove the throttle valve control module.

-- Disconnect all electric connectors from the heated oxygen sensors.

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-- Free up electrical wires to oxygen sensors.

-- Loosen the nuts on the front exhaust pipe -arrows- (accessible from the top) from the exhaust manifolds.

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-- Remove the noise insulation. Refer to NOISE INSULATION .

-- Remove the heat shield above the right drive axle.

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-- Remove the front exhaust pipe nuts (accessible from underneath) from the exhaust manifolds -arrows-.

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CAUTION:

Danger of causing damage to the decoupling element.

Do not bend the decoupling element more than 10°.
Do not stretch the decoupling element.
Do not damage the wire mesh on the decoupling element.

-- Free up electrical wires to oxygen sensors.

-- Loosen the exhaust system bracket -arrows-.

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-- Remove the underbody tunnel bridge -A and B-.

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-- Separate the exhaust system at the clamp -1-.

-- Remove the front exhaust pipe with the catalytic converters and front mufflers from the exhaust manifold.