C 230K (202.024) L4-2.3L SC (111.975) (2001)
Oxygen Sensor: Locations
O2 Sensors, Location
O2 Sensors, Position
Engine 111 (except M 111EVO)
located in cross connection pipe
G3/2
O2 sensor upstream of TWC
Engine 111.952/56/82
G3/2
O2 sensor upstream of TWC
Engine 111.952/56/82
158
Three-way catalytic converter
G3/1
O2 sensor downstream of TWC
G3/1x1
Plug connection of O2 sensor downstream of TWC