S49.20-A068-78
1 | Temperature sensor | 5 | Electrical wiring harness | 8 | Electrical connector | ||
2 | Temperature sensor | 6 | Electrical wiring harness | 9 | Bolts | ||
3 | Temperature sensor | 7 | Retaining clips | 10 | Sensor unit | ||
4 | Electrical wiring harness |
S49.20-A069-79
7 | Retaining clips | 11 | Temperature sensor | 12 | Electrical wiring harness |
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. | |
Warning | Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. | |
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. | |
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
| Remove/install | ||
1 | Switch off ignition and store transmitter key outside of transmission range (min. 2 m). | ||
2.1 | Remove engine compartment lining. | Model 470 except code Y1J (underbody protection) | |
Remove only rear engine compartment lining. | |||
2.2 | Remove underbody protection. | Model 470 with code Y1J (underbody protection) | |
Remove only rear and center technical underbody protection. | |||
3 | Remove right front wheel. | ||
4 | Remove right front fender liner. | ||
5 | Remove temperature sensors (1, 2, 3, 11) from the exhaust gas aftertreatment unit. | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
For this purpose, remove nuts. Plug openings. | |||
Installation: Apply heat-resistant lubricating paste to the nuts of the temperature sensors (1, 2, 3, 11). | |||
Temperature sensor to exhaust gas aftertreatment unit | |||
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
Box wrench socket | |||
Record plug | |||
6 | Remove electrical wiring harnesses (4, 5, 6, 12) to the retaining clips (7). | ||
7 | Release and disconnect electrical connector (8). | ||
8 | Remove sensor unit (10) with temperature sensors (1, 2, 3, 11). | To do this, remove screw/bolts (9) . | |
The sensor unit (10) and temperature sensors (1, 2, 3, 11) form a unit. | |||
Bolt, sensor unit for temperature sensors to holder | |||
9 | Install in the reverse order. | ||
| Check | ||
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
10 | Check exhaust system for leaks with the engine running. | Visual inspection only. |
000 589 77 03 00
Box wrench socket
129 589 00 91 00
Record plug