ML 55 AMG (163.174) V8-5.5L (113.981) (2001)
Catalytic Converter: Removal and Replacement
Remove/Install Catalytic Converter Or Front Exhaust System
1
Remove left and right wheelhouse liners
2
Remove front springs
3
Remove heat shield (1)
NOTE: Left wheel-house only.
4
Remove connectors (G3/3x1, G3/4x1, G3/5x1, G3/6x1) from O2 sensor (G3/3, G3/4, G3/5, G3/6)
5
Remove exhaust bracket (2)
NOTE: To do this, unscrew bolts (3) and nuts (4).
CAUTION: Installation: Check threaded rails (5), replace if necessary.
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Replace nuts (4).
6
Undo exhaust clamps (6) at rear exhaust system
NOTE: The exhaust clamps (6) are welded on.
CAUTION: Installation: Replace nuts.
7
Disconnect front exhaust systems from rear exhaust system
8
Unscrew bolts (7) at flange connection (8, 9) securing front exhaust system to exhaust manifold
CAUTION: Installation: Replace screws (7).
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Inspect rivet nuts in exhaust manifold, replace if necessary.
9
Lift out catalytic converters/front exhaust system