W49.20-1172-09
1 | Exhaust aftertreatment unit | 4 | Sensor bush | B38 | Exhaust pressure sensor downstream of diesel particulate filter | ||
2 | Retaining screw | 5 | Electrical connector | ||||
3 | Nut | 6 | Pressure line |
Danger ! | 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. | |
Danger ! | 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. | |
| Notes on self-locking nuts and bolts | ||
| Remove | ||
1 | Switch off ignition | ||
2 | Remove rear fender piece before the EATU (1) | ||
3 | Disconnect electrical connection (5) | ||
4 | Remove exhaust pressure sensor downstream of the diesel particulate filter (B38) at the sensor bush (4) | ||
| Install | ||
5 | Screw on retaining screw (2) and remove pressure line (6) at the sensor bush (4) | ||
6 | Screw on nut (3) in order to loosen the sensor bush (4) on bracket | ||
7 | Coat thread of the exhaust pressure sensor downstream of diesel particulate filter (B38) with lubricant | Paste, hot lubrication 100 g DBL 6879.20 | |
8 | Attach exhaust pressure sensor downstream of the diesel diesel particulate filter (B38) to the sensor bush (4) | Exhaust pressure sensor to sensor bushing | |
9 | Connect electrical connection (5) | ||
10 | Align electrical connection (5) through twisting the sensor bush (4) relative to the wiring harness | | |
11 | Fit pressure line (6) to the sensor bush (4) | Pressure line to sensor socket | |
12 | Turn down nut (3) in order to the attach sensor bush (4) to the bracket | Sensor socket to bracket | |
13 | Install rear fender piece before the EATU (1) | ||
Learning process | |||
14 | Perform the respective teach-in process in the exhaust aftertreatment (ACM) control unit | Only if the exhaust pressure sensor downstream of diesel particulate filter (B38) was replaced. | |
Perform teach-in processes on exhaust aftertreatment control unit (ACM) | |||
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