1 | Oxygen sensor upstream of catalytic converter |
2 | Electrical connector |
3 | Bracket |
4 | Heat shield |
S07.04-4751-06
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 | ||
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
| Remove | ||
1 | Remove heat shield (4). | ||
2 | Unclip electrical connector (2) from bracket and disconnect. | ||
3 | Expose electrical wiring harness for lambda sensor upstream of catalytic converter (1). | ||
4 | Remove lambda sensor upstream of catalytic converter (1) and seal opening with suitable stop plug. | Record plug | |
Box wrench bit | |||
| Install | ||
5 | Coat thread of lambda sensor upstream of catalytic converter (1) with heat-resistant lubricating paste. | Paste, hot lubrication 1 kg, DBL 6879.20 | |
6 | Tighten lambda sensor upstream of catalytic converter (1). | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
Oxygen sensor upstream of catalytic converter at exhaust pipe downstream of turbocharger | |||
Box wrench bit | |||
7 | Connect electrical connection (2). | ||
8 | Clip electrical connector (2) into bracket and fasten electrical wiring harness. | ||
9 | Read out and delete fault memory and initialize lambda sensor upstream of catalytic converter (1). | When replacing the lambda sensor upstream of catalytic converter (1). | |
| |||
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. | |
10 | Perform engine test run and check threaded connection of lambda sensor upstream of catalytic converter (1) in terms of leak tightness. | ||
11 | Install heat shield (4). |
000 589 71 03 00
Box wrench bit
129 589 00 91 00
Record plug
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