Remove/install left oxygen sensor downstream of catalytic converter - AR07.04-P-0082LFB
ENGINE 157, 278 in MODEL 217, 222
Shown on model 217 with engine 278
Fig 1: Catalytic Converter Left Oxygen Sensor Downstream Remove/Install Components - Shown On Model 217 With Engine 278
| 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. Deburr repair panels. | AS00.00-Z-0017-01A | |
| 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. | AS00.00-Z-0002-01A | |
| Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | ||
| Remove | |||
| 1 | Switch off ignition and store transmitter key outside of transmission range (min. 2 m) | ||
| 2 | Remove rear center and middle lower engine compartment paneling | AR61.20-P-1105LF | |
| 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) | Figure | |
| 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). |
Figure |
| Install | |||
| 8 | 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). |
Figure |
| 9 | 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 |
*BR00.45-Z-1005-06A |
| 10 | Remove screw plug from threaded hole of the left oxygen sensor downstream of CAT (1) | ||
| 11 | 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 | AH00.00-P-0015-01CW | ||
| *BA14.00-P-1002-01A | |||
| Figure | |||
| 12 | Clip electrical line (2) into the holder (3) | ||
| 13 | Plug together electrical connection (5) until it locks | ||
| 14 | Clip electrical connection (5) into the holder (4) | ||
| Check | |||
| 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. | AS00.00-Z-0005-01A | |
| 15 | Carry out an engine test run and check exhaust system for leaktightness | ||
| 16 | Install lower rear and center engine compartment paneling | AR61.20-P-1105LF | |
| 17 |
Read out fault memory using the diagnostic system and clear if necessary | AD00.00-P-2000-04B |
OXYGEN SENSOR
| Number | Designation | Engine 157, 278 | |
|---|---|---|---|
| BA14.00-P-1002-01A | Oxygen sensor to catalytic converter | Nm | 50 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1005-06A | Paste, hot lubrication 1 kg, DBL 6879.20 | A 000 989 76 51 |