S14.40-4588-09
1 | Electrical connector | 4 | NOx sensor | |
2 | Bolts | 5 | Control unit | |
3 | Bracket |
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. | |
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. | |
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
| Remove/install | ||
1 | Raise vehicle | ||
Topical note | Special instructions for lifting and supporting vehicle | ||
2 | Disconnect electrical connection (1) | ||
3 | Remove control unit (5) | To do this, remove screw/bolts (2). | |
4 | Remove electrical wiring harness of NOx sensor (4) from bracket (3) | ||
5 | Remove NOx sensor (4) | Installation: Apply heat-resistant lubricating paste to thread of NOx sensor (4). | |
NOx sensor upstream of SCR catalytic converter | |||
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
Tool kit | |||
Torque wrench | |||
| Clean | ||
6 | Clean sealing surface and thread of NOx sensor (4) on SCR catalytic converter | ||
7 | Install in the reverse order | ||
8 | Read out fault memory | When replacing the NOx sensor (4). | |
| Connect/disconnect diagnostic unit | ||
Depending on findings | |||
| |||
Erase fault memory. | |||
| Check | ||
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. | |
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 | Visual inspection only. |
001 589 66 21 00
Torque wrench
000 589 10 99 00
Tool kit