S 500 4MATIC (220.184) V8-5.0L (113.966) (2003)
Position on engine 137
G3/11
O2 sensor on left downstream of TWC Cylinders 7 - 9
G3/12
O2 sensor on left downstream of TWC Cylinders 10 - 12
Position on engine 137
G3/13
O2 sensor on right downstream of TWC Cylinders 1 - 3
G3/14
O2 sensor on right downstream of TWC Cylinders 4 - 6