P49.10-3194-09
38 | NOx sensor |
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. | |
| Information on preventing damage to electronic components due to electrostatic discharge | ||
| Notes on self-locking nuts and bolts | ||
| 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 | Switch off ignition and store transmitter key outside of transmission range (min. 2 m) | ||
2 | Release right underfloor paneling in area of threaded axle connection and lower | ||
3 | Release and disconnect electrical connection of NOx sensor control unit (38) | ||
4 | Unscrew nuts of NOx sensor control unit (38) | ||
5 | Unclip electrical line from holder | ||
6 | Remove NOx sensor (38) | Box wrench bit | |
7 | Cover sensor tip of the NOx sensor (38) with protective cover | When reusing the NOx sensor (38). | |
Set of protective caps | |||
8 | Close off threaded hole of NOx sensor (38) using suitable stop plugs | Record plug | |
9 | Check NOx sensor (38) with electrical line and control unit | For damage | |
| |||
Replace NOx sensor (38). | |||
| Install | ||
10 | Remove protective cover from sensor tip of the NOx sensor (38) | When reusing the NOx sensor (38). | |
Set of protective caps | |||
11 | Remove the stop plug from threaded hole of the NOx sensor (38) | Record plug | |
12 | Coat thread of NOx sensor (38) with heat-resistant lubricant | When reusing the NOx sensor (38). | |
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
13 | Position NOx sensor (38) and screw in | NOx sensor to exhaust pipe | |
Box wrench bit | |||
14 | Screw on nuts of NOx sensor control unit (38) | ||
15 | Clip electrical line into holder | ||
16 | Put together and lock electrical connection of NOx sensor control unit (38) | ||
17 | Install right underfloor paneling | ||
Danger ! | 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. | |
18 | Perform an engine test run and check exhaust system for leaktightness |
000 589 71 03 00
Box wrench bit
001 589 00 91 00
Set of protective caps
129 589 00 91 00
Record plug
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