Remove/install heated O2 sensor - AR07.52-P-5303GQC
ENGINE 276.8 in MODEL 166, 251
| Remove/install | |||
| 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 the vehicle manufacturer. | AS00.00-Z-0010-01A | |
| Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. | No parts of the body or limbs should be within the operating area when the components are moving. | AS00.00-Z-0011-01A | |
| 1 | Switch off ignition | ||
| 2 | Remove underfloor paneling | ENGINE 276.8 in MODEL 166 | AR61.30-P-1001GQ |
| ENGINE 276.8 in MODEL 251 | AR61.30-P-1001RT | ||
| 3 | Remove right air filter housing (1) or left air filter housing (2) | AR09.10-P-1150GQC | |
| Remove oxygen sensor (G3/5 or G3/6) downstream of the CAT | |||
| 4 | Disconnect left oxygen sensor electrical connection downstream of CAT (G3/5x1) or right oxygen sensor electrical connection downstream of CAT (G3/6x1) | ||
| 5 | Unclip electrical line for oxygen sensor (G3/5 or G3/6) from retaining clamps (3) and bracket | ||
| 6 | Remove catalytic converter | Only for removal of the oxygen sensor downstream of CAT (G3/5). | |
| AR49.10-P-5500GQC | |||
| 7 | Detach oxygen sensor (G3/5 or G3/6) from catalytic converter | ||
| *BA14.00-P-1002-01A | |||
| Paste, hot lubrication 1 kg, DB supply specification 6879.20 | *BR00.45-Z-1005-06A | ||
| Box wrench bit | Fig 3 | ||
| Remove oxygen sensor (G3/3 or G3/4) upstream of CAT | |||
| 8 | Remove windshield wiper system | ENGINE 276.8 in MODEL 251 | |
| AR82.30-P-6400RT | |||
| 9 | Remove rear heat shield on the left or right | ENGINE 276.8 in MODEL 251 | |
| Remove/install catalytic converter | AR49.10-P-5500GQC | ||
| 10 | Disconnect electrical connection for left oxygen sensor downstream of CAT (G3/3x1) or electrical connection for right oxygen sensor downstream of CAT (G3/4x1) | ||
| 11 | Unclip electrical line for oxygen sensor (G3/3 or G3/4) from retaining clamps (3) and bracket | ||
| 12 | Detach oxygen sensor (G3/3 or G3/4) from catalytic converter | ||
| *BA14.00-P-1005-01A | |||
| Paste, hot lubrication 1 kg, DB supply specification 6879.20 | *BR00.45-Z-1005-06A | ||
| Fig 3 | |||
| 13 | Install in the reverse order | ||
| 14 | Read out fault memory using the diagnostic system and clear if necessary | ||
| AD00.00-P-2000-04A | |||
| 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 leak tightness |
OXYGEN SENSOR
| Number | Designation | ENGINE 276 | |
|---|---|---|---|
| BA14.00-P-1002-01A | Oxygen sensor at catalytic converter | Nm | 50 |
OXYGEN SENSOR
| Number | Designation | ENGINE 276 | |
|---|---|---|---|
| BA14.00-P-1005-01A | Oxygen sensor upstream of catalytic converter | Nm | 50 |
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 |