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




Engine 112, 113
G3/3 O2 sensor on left, upstream of TWC
G3/4 O2 sensor on right, upstream of TWC
G3/5 O2 sensor on left, downstream of TWC (USA) and EURO3/4
G3/6 O2 sensor on right, downstream of TWC (USA) and EURO3/4