CLK 55 AMG (208.374) V8-5.5L (113.984) (2001)
Catalytic Converter: Service and Repair
Remove and installing catalytic converter or front exhaust system
Shown On Engine 112.940
1
Disconnect connectors (G3/302x1, G3/4x1) for left and right oxygen sensors before TWC
2
Unscrew bolts (1) at flange connection between front exhaust system/exhaust manifold.
NOTE:
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Loosen flange connection (6) or separate if necessary
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If bolts are sluggish, or thread damaged, Replace rivet nuts in exhaust manifold
3
Unscrew bolts (3) at flange connection between front exhaust system/rear exhaust system
NOTE: Installation: Replace nuts and bolts (3) if necessary.
4
Unscrew nuts (2) on support.
NOTE: Installation: install new nuts.
5
Remove front exhaust system with three-way catalytic converter (4)
-
Push rear exhaust system back slightly, or disconnect rear exhaust system if necessary
CAUTION: Ensure that the heat shields of the exhaust system are not damaged when removing and installing the three-way catalytic
converter (4).
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Check seal ring (5) for damage and replace if necessary.
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Use emery cloth to remove combustion and corrosion residues at connection points.
6
Install in the reverse order.
NOTE: Install the three-way catalytic converter without stress.