Exhaust System: Description and Operation

Shown On Engine 112.985:

Shown on Engine 112, 113 in Model 220:

Position
At underfloor

Task
- Passing exhaust gas with a low backpressure to the rear of the vehicle
- Absorbing exhaust gas noise
- Emission control by means of TWC

Design/function
- Front exhaust system with catalytic converter (with front muffler on vehicles without TWC). Firewall catalytic converters on engine 112, 113 (USA).
- Center muffler
- Rear muffler with tailpipe

Partially sandwich design to absorb noise; shields reduce heat radiated to underfloor