SLK 230 (170.447) L4-2.3L SC (111.973) (2000)
Oxygen Sensor: Application and ID
Oxygen Sensor and Catalyst Configuration Example
V6/V8/V12 Engine W/2 Exhaust Banks & 4 Catalysts
V6/V8/V12 Engine W/2 Exhaust Banks & 3 Catalysts
L4 Engine W/1 Exhaust Banks & 2 Catalysts