ML 430 (163.172) V8-4.3L (113.942) (2000)
Catalytic Converter: Removal and Replacement
Remove and installing catalytic converter or front exhaust system
Illustrated On M112
1
Lift vehicle at front axle carrier with pit lift
2
Remove front springs
3
Separate plug connections of and diagnosis sensors
4
Loosen exhaust clamps from rear exhaust system
NOTE: Exhaust clamps are welded on.
5
Disconnect front exhaust system from rear exhaust system
6
Unscrew nuts (11/2) on support.
NOTE: Replace nuts.
7
Remove fender liner in front fender on both sides
NOTE: Only 163.172/175.
8
Unscrew screws (11/1) at flange connection of front exhaust system/exhaust manifold.
NOTE: If bolts are sluggish or thread is damaged, Replace rivet nuts in exhaust manifold.
9
Lift out three way catalytic converters and front exhaust system
NOTE: Ensure, that when removing and installing rear three way catalytic converter (158) and front three way catalytic converter (158/1), the
shields at the vehicle underbody are not damaged.
10
Install in the reverse order.
NOTE: Installation: Install three way catalytic converters free of tension.