W49.20-A037-09
1 | Exhaust aftertreatment unit | 5 | Screw plug (N 000908 020004) | |
2 | Connection fitting (for pressure line of pressure sensors (A 007 997 53 71)) | 6 | Screw plug (N 000908 014009) | |
3 | Connection fitting (for temperature sensors (A 007 997 52 71)) | 7 | Nut (N 000000 005461) | |
4 | Connection fitting (for NOx sensors (A 007 997 51 71)) |
Caution | Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. | |
Warning | Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | |
Danger | The high voltage used for electric welding presents a lethal hazard. Risk of explosion from welding in areas close to highly inflammable materials. Risk of injury from weld splatter and UV-light when welding. Risk of poisoning from inhaling welding gases | Use insulating mats. Wear protective clothing, safety glasses and a protective mask. Remove highly inflammable materials from the hazard area. Use air extraction system. | |
Topical note | Notes on self-locking nuts and bolts | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
General information and guidelines for welding on the exhaust aftertreatment unit | |||
Replace | |||
1 | Remove exhaust gas aftertreatment unit. |
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Vehicles with code M5R (Engine version, EEV) or code M5Y (Engine version Euro V) | |||
Vehicles with code M5C (engine version Euro VI, D) or code M5L (engine version Euro VI, version 2) or code M5M (engine version Euro VI with OBD-C) | |||
2 | Replace connection fittings (2, 3, 4) of sensors at exhaust gas aftertreatment unit (1). | ||
The sensors and/or pressure line at rear face of exhaust gas aftertreatment unit (1) are shown here by way of example. All connection fittings (2, 3, 4) of the sensors and/or pressure lines at exhaust gas aftertreatment unit can however be replaced in this manner. | |||
Exhaust temperature sensor to exhaust aftertreatment unit | |||
NOx sensor to exhaust aftertreatment unit | |||
Pressure line to exhaust aftertreatment unit | |||
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
Welding device | |||
3 | Install exhaust gas aftertreatment unit. |
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Vehicles with code M5R (Engine version, EEV) or code M5Y (Engine version Euro V) | |||
Vehicles with code M5C (engine version Euro VI, D) or code M5L (engine version Euro VI, version 2) or code M5M (engine version Euro VI with OBD-C) |
963 589 02 23 00
Welding device