Remove/install SCR AdBlue combination sensor for fill level and temperature with integral AdBlue heat duct - AR14.40-P-2044GZB
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 Mercedes-Benz ML350, 2010 Mercedes-Benz ML350, 2009 Mercedes-Benz ML320, 2009 Mercedes-Benz GL320, and 2008 Mercedes-Benz ML320. However, it is still accessible from the selected car via links, so may be relevant.
ENGINES 642 in MODEL 164, 212, 221, 251 with CODE (U42) BlueTEC diesel exhaust treatment (SCR)
| Remove/install | |||
| Risk of burn injuries and scalding when working at AdBlue lines and the components attached to them. Risk of injury to skin and eyes when handling AdBlue. Risk of poisoning caused by swallowing AdBlue | Pour AdBlue into suitable containers only. Wait until the pressure is released before starting any work on the exhaust aftertreatment system. | AS14.40-Z-0001-01A | |
| Notes on use, material properties and handling of AdBlue® | AH14.40-N-0001-01AB | ||
| 1 | Remove AdBlue® tank | Model 164, 251 | AR14.40-P-2014GZB |
| Model 212, 221 | AR14.40-P-2014OGE | ||
| 2 | Remove AdBlue® pump | AR14.40-P-2021GZB | |
| 3 | Detach electrical connectors for heating element and fill level sensor | ||
| 4 | Remove union nut (2) | *BA14.40-P-1002-02A | |
| 5 | Lift up cover of takeoff tank (4) with rubber seal (3) and fold over | ||
| 6 | Turn takeoff tank (4) counterclockwise | ||
| 7 | Remove takeoff tank (4) from AdBlue® container | ||
| 8 | Install in the reverse order |
EXHAUST AFTERTREATMENT, BLUE TEC
| Number | Designation | Engine 642 with code U42 | |
|---|---|---|---|
| BA14.40-P-1002-02A | Union nut of delivery module to AdBlue container | Nm | 85 |