Remove/install heated O2 sensor - AR07.52-P-5303RKB
ENGINE 157, 278 in MODEL 231
| 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 | |
| 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 vehicle manufacturer. | AS00.00-Z-0010-01A | |
| 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 | |
| Notes on self-locking nuts and bolts | AH00.00-N-0001-01A | ||
| Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | ||
| Remove/install | |||
| 1 | Switch off ignition and remove transmitter key (A8/1) or KEYLESS-GO start/stop button (S2/3) from electronic ignition lock control unit (N73) | ||
| 2 | Remove bottom engine compartment paneling | AR61.20-P-1105RK | |
| 3 | Remove screw/bolts (2) and heat shield (1) | *BA27.40-P-1014-01A | |
| 4 | Disconnect electrical connection for LH oxygen sensor upstream of catalytic converter (G3/3x1), on the right upstream of catalytic converter (G3/4x1) or on the left downstream of catalytic converter (G3/5x1) and on the right downstream of catalytic converter (G3/6x1) from the retaining clamps on transmission and expose electrical lines | ||
| 5 | Disconnect electrical connection for LH oxygen sensor upstream of catalytic converter (G3/3x1), on the right upstream of catalytic converter (G3/4x1) or on the left downstream of catalytic converter (G3/5x1) and on the right downstream of catalytic converter (G3/6x1) | ||
| 6 | Remove LH oxygen sensor upstream of catalytic converter (G3/3) or RH oxygen sensor upstream of catalytic converter (G3/4) or LH oxygen sensor downstream of catalytic converter (G3/5) or LH oxygen sensor downstream of catalytic converter (G3/6) | ||
| Paste, hot lubrication 1 kg, DB supply specification 6879.20 | *BR00.45-Z-1005-06A | ||
| Figure | |||
| 7 | Install in the reverse order | ||
| 8 | Read out fault memory with STAR DIAGNOSIS and delete if necessary | ||
| Connect STAR DIAGNOSIS and read out fault memory | AD00.00-P-2000-04A | ||
| 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 | |
| 9 | Perform an engine test run and check exhaust system for leaktightness |
HOUSING
| Number | Designation | TRANSMISSION 722.9 | |
|---|---|---|---|
| BA27.40-P-1014-01A | Bolt, heat shield to transmission housing | Nm | 9 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1005-06A | Paste, hot lubrication 1 kg, DB supply specification 6879.20 | A 000 989 76 51 |