E 320 4MATIC Sedan (210.082) V6-3.2L (112.941) (1999)
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Catalytic Converter: Service and Repair
Remove and installing catalytic converter or front exhaust system
1
Disconnect connectors (G3/302x1, G3/4x1) for left and right oxygen sensors before TWC.
2
Detach front axle torsion bar from longitudinal frame member and swivel torsion bar downwards.
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Model 210.063/263/065/265.
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Replace bolts.
3
Unscrew screws (11/1) at flange connection of front exhaust system/exhaust manifold.
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If bolts are sluggish or thread is damaged, Replace rivet nuts in exhaust manifold.
4
Unscrew nuts (11/2) on support.
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Replace nuts.
5
Disconnect flange connection between front / rear exhaust system and remove front exhaust system with three-way catalytic converter (158).
CAUTION: Ensure that the heat shield (11/6) is not damaged when removing and installing the three-way catalytic converter (158).
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Check seal ring (11/4) for damage and replace if necessary.
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Use emery cloth to remove combustion and corrosion residues at connection points.
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Replace nuts (11/3).
6
Install in the reverse order.
NOTE: Install the three-way catalytic converter without stress.
