B49.20-0017-09
1 | Exhaust gas after-treatment unit | 4 | AdBlue® return line | 7 | Bolts | ||
2 | Support | 5 | Wiring harness | 8 | Seal | ||
3 | Electrical connector | 6 | AdBlue® feed line | A67 | AdBlue® metering unit |
Warning | 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. | |
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Notes on use, material properties and handling of AdBlue® | |||
| Remove/install | ||
1 | Turn off ignition | ||
2 | Loosen the wiring harness (5) | ||
3 | Remove the AdBlue® metering unit (A67) from the exhaust gas after-treatment unit (1) | Installation: Replace the gasket (8) and the bolts (7) | |
AdBlue® metering device in the exhaust gas aftertreatment system | |||
4 | Detach the electrical connector (3) | ||
5 | Remove the AdBlue® feed line (6) | Collect the AdBlue® that seeps in an appropriate container and discard it. | |
6 | Remove the AdBlue® return line (4) | Collect the AdBlue® that seeps in an appropriate container and discard it. | |
7 | Install in reverse order | ||
8 | Check the leak-tightness in the separating points of the lines | Visual inspection. |
Referenced documents
- ah0000n500001h Notes on avoiding damage through contamination and foreign objects
- ah1440n000101a Notes on use, material properties and handling of AdBlue®
- as1440z000101a 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