Exhaust Gas NOx Sensor: Service and Repair

AR07.04-P-0071SXI Remove/install Exhaust Gas Temperature Probe
- ENGINES 642 in MODEL 204, 207, 212, 218
- ENGINES 642.8 in MODEL 221

Shown on engine 642.8







1 Bracket
2 Heat protection
B19/11 Temperature sensor upstream of turbocharger

Shown: engine 642.8 with code (U42) BlueTEC (SCR) diesel exhaust treatment in model 221 with 4MATIC







3 Exhaust pipe
4 Bolt
5 Clip
6 Bolt
G3/2 O2 sensor upstream of CAT















001 589 01 91 00, Set of protective covers







001 589 01 16 00, Set of engine bearing wrenches