1 | Electrical connector |
2 | Nuts |
D49.20-0002-06
3 | Retaining clips |
4 | NOx sensor |
D49.20-0003-06
Danger | Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. | |
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 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. | |
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
| Remove/install | ||
1 | Raise vehicle | ||
Topical note | Special instructions for lifting and supporting vehicle | ||
2 | Remove underfloor paneling | If installed. | |
Installation: Install underfloor paneling only after the leak test. | |||
3 | Disconnect electrical connection (1) | ||
4 | Unscrew nuts (2) | ||
Topical note | Notes on self-locking nuts and bolts | ||
5 | Remove retaining clips (3) from heat shield | Installation: Check retaining clips (3). | |
Depending on findings | |||
| |||
Replace affected retaining clips (3). | |||
6 | Unscrew NOx sensor (4) and remove with NOx sensor control unit | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
The NOx sensor (4) and NOx sensor control unit form a single unit. | |||
Installation: Coat thread on NOx sensor (4) with heat-resistant lubricating paste. | |||
NOx sensor to diesel particulate filter | |||
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
Box wrench bit | |||
7 | Install in the reverse order | ||
8 | Read out and erase fault memory | When installing a new NOx sensor (4). | |
| Connect/disconnect diagnostic unit | ||
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. | |
9 | Check for leak tightness with engine running |
000 589 71 03 00
Box wrench bit
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