SLK 320 (170.465) V6-3.2L (112.947) (2002)
Catalytic Converter: Service and Repair
Remove and installing catalytic converter or front exhaust system
1
Remove engine compartment paneling.
2
Separate plug connections (G3/5x1, G3/6x1) of sensors (downstream of TWC).
NOTE: Push the connectors out of the holders for this step.
3
Detach front exhaust system/catalytic converter at exhaust manifold.
CAUTION: Installation: Replace bolts (1). Inspect rivet nuts in exhaust manifold, replace if necessary.
4
Support exhaust system.
5
Detach bracket (2) of exhaust system at transmission.
NOTE: Slacken bolts (3) for this step.
6
Detach bracket (2) at front exhaust system/right and left catalytic converter.
CAUTION: Installation: Check tapping plates (4), replace if necessary. Replace nuts (5).
7
Push together bracket (2).
8
Separate front exhaust system/three way catalytic converter (12) from rear exhaust system.
CAUTION: Installation: Check seal ring (6) for damage, replace if necessary.
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Use emery cloth to remove combustion and corrosion residues at connection points.
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Replace bolts (7) and nuts (8).
9
Remove front exhaust system/three way catalytic converter (12).
NOTE: The right-hand catalytic converter (12a) can be removed separately from the left-hand catalytic converter.
CAUTION: Installation: Check seal ring (9) for damage, replace if necessary.