S49.20-A020-79
1 | SCR catalytic converter diesel particulate filter unit | 5 | Union nut | 8 | Differential pressure line | ||
2 | Bolts | 6 | Pressure line | 9 | Differential pressure sensor | ||
3 | Screw | 7 | Union nut | 10 | Screw | ||
4 | Clip |
1 | SCR catalytic converter diesel particulate filter unit |
11 | Seal |
S49.20-A021-82
12 | Low pressure exhaust gas recirculation line |
S49.20-A022-82
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 | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
| Remove | ||
1 | Remove diesel oxidation catalytic converter. | ||
2 | Remove lower engine compartment lining | ||
3 | Remove front exhaust system from SCR catalytic converter diesel particulate filter unit (1). | ||
4 | Remove heat shield lower section under SCR catalytic converter diesel particulate filter unit (1). | ||
5 | Remove screws (2). | ||
6 | Remove screw (3) from clamp (4). | ||
7 | Lower vehicle. | ||
8 | Open clamp (4) and remove upward. | ||
9 | Remove pressure line (6) from SCR catalytic converter diesel particulate filter unit (1). | For this purpose, remove union nut (5). | |
Box wrench bit | |||
10 | Remove differential pressure lines (8) from SCR catalytic converter diesel particulate filter unit (1). | For this purpose, remove union nuts (7). | |
Box wrench bit | |||
11 | Remove differential pressure lines (8) together with differential pressure sensor (9) upwards and place to one side. | ||
12 | Remove the bolt (10). | ||
13 | Remove SCR catalytic converter diesel particulate filter unit (1) upwards. | Clip: Remove/install SCR catalytic converter diesel particulate filter unit | |
14 | Remove seal (11). | If SCR catalytic converter diesel particulate filter unit (1) will be reused. | |
| Clean | ||
15 | Clean separating points at SCR catalytic converter diesel particulate filter unit (1). | If SCR catalytic converter diesel particulate filter unit (1) will be reused. | |
Assembly cleaner | |||
16 | Clean separating point at low-pressure exhaust gas recirculation line (12). | Assembly cleaner | |
| Install | ||
17 | Install new seal (11). | ||
18 | Position SCR catalytic converter diesel particulate filter unit (1) at installation location. | ||
19 | Tighten screw/bolt (10) slightly by hand. | ||
20 | Tighten screws (2) slightly by hand. | ||
21 | Attach new clamp (4) to SCR catalytic converter diesel particulate filter unit (1). | Do not close clamp (4). | |
22 | Align SCR catalytic converter diesel particulate filter unit (1) with low-pressure exhaust gas recirculation line (12). | ||
23 | Position clamp (4) in the installation position and close. | ||
24 | Tighten screw (10). | Screw, holder to SCR catalytic converter diesel particulate filter unit | |
25 | Attach pressure line (6) to SCR catalytic converter diesel particulate filter unit (1) and attach union nut (5). | Union nut, pressure line to SCR catalytic converter diesel particulate filter unit | |
Box wrench bit | |||
26 | Slightly tighten new screw (3) at clamp (4) by hand. | ||
27 | Attach differential pressure lines (8) together with differential pressure sensor (9) to SCR catalytic converter diesel particulate filter unit (1) and attach union nuts (7). | Union nut, differential pressure line to SCR catalytic converter diesel particulate filter unit | |
Box wrench bit | |||
28 | Raise vehicle. | ||
29 | Tighten screw (3) of the clamp (4). | Screw, clamp for low pressure exhaust gas recirculation line to SCR catalytic converter diesel particulate filter unit | |
30 | Tighten screws (2). | Screw, holder to SCR catalytic converter diesel particulate filter unit | |
31 | Install heat shield lower section under SCR catalytic converter diesel particulate filter unit (1). | ||
Screw, heat shield lower section of SCR catalytic converter diesel particulate filter unit to holder | |||
32 | Attach front exhaust system to SCR catalytic converter diesel particulate filter unit (1). | ||
33 | Install lower engine compartment lining. | ||
34 | Install diesel oxidation catalytic converter. | ||
| Check | ||
35 | Read out and delete fault memory. | If SCR catalytic converter diesel particulate filter unit (1) was replaced and/or problems existed. | |
| |||
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. | |
36 | Perform engine test run and check leak tightness of SCR catalytic converter diesel particulate filter unit (1). |
000 589 70 03 00
Box wrench bit
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