Shown on model 217 with engine 276.8 |
1 | Left oxygen sensor downstream of catalytic converter |
2 | Electrical line |
3 | Bracket |
4 | Bracket |
5 | Electrical connection |
P07.61-3958-12
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 avoiding damage through contamination and foreign objects | ||
| Remove | ||
1 | Switch off ignition and store transmitter key outside of transmission range (min. 2 m) | ||
2 | Remove bracket of left catalytic converter | ||
3 | Unclip electrical line (2) from the bracket (3) | ||
4 | Unclip electrical connection (5) from the bracket (4) | ||
5 | Release and disconnect electrical connection (5) | ||
6 | Remove left oxygen sensor downstream of catalytic converter (1) | Box wrench bit | |
7 | Cover sensor tip of the left oxygen sensor downstream of CAT (1) with protective cover | For reuse of the left oxygen sensor downstream of CAT (1). | |
Set of protective caps | |||
8 | Close off threaded hole of left oxygen sensor downstream of CAT (1) | Commercially available devices/tools | |
| Install | ||
9 | Remove protective cover from sensor tip of the left oxygen sensor upstream CAT (1) | For reuse of the left oxygen sensor downstream of CAT (1). | |
Set of protective caps | |||
10 | Coat thread of the left oxygen sensor upstream of catalytic converter (1) with heat-resistant lubricant | For reuse of the left oxygen sensor downstream of CAT (1). | |
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
11 | Remove screw plug from threaded hole of the left oxygen sensor upstream of CAT (1) | Commercially available devices/tools | |
12 | Screw in left oxygen sensor downstream of catalytic converter (1) | ||
| Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | ||
Oxygen sensor to catalytic converter | |||
Box wrench bit | |||
13 | Clip electrical line (2) into the holder (3) | ||
14 | Plug together electrical connection (5) until it locks | ||
15 | Clip electrical connection (5) into the holder (4) | ||
| Check | ||
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. | |
16 | Carry out an engine test run and check exhaust system for leaktightness | ||
17 | Install bracket of the left catalytic converter | ||
18 | Read out fault memory using the diagnostic system and clear if necessary | ||
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000 589 71 03 00
Box wrench bit
001 589 00 91 00
Set of protective caps