Remove/install oxygen sensors - AR07.04-P-0021MNA
ENGINE 177 in MODEL 205
| Remove/install | |||
| 1.1 | Switch off ignition and remove transmitter key | Engine 177 in model 205 except code 889 (KEYLESS-GO) |
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| 1.2 | Actuate KEYLESS GO start/stop button and switch off ignition | Engine 177 in model 205 with code 889 (KEYLESS-GO) |
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| 2.1 | Remove right air filter housing (6) | For removal of the right oxygen sensor upstream of CAT (1) and the right oxygen sensor downstream of CAT (15) | AR09.10-P-1150MNA |
| 2.2 | Remove right air filter housing (6) and left air filter housing (9) | For removal of the oxygen sensor upstream of CAT (11) | AR09.10-P-1150MNA |
| 2.3 | Remove cover (4) from left air filter housing (9) | For removal of the right oxygen sensor upstream of CAT (12) and the right oxygen sensor downstream of CAT (15) | |
| 3 | Remove cover (5) | ||
| 4.1 | Unclip retaining clips (7, 16) of electrical line | For removal of the right oxygen sensor upstream of CAT (1) | |
| 4.2 | Unclip retaining clips (10, 13) of electrical line | For removal of the oxygen sensor upstream of CAT (11) | |
| 4.3 | Unclip retaining clips (13) of electrical line | For removal of the left oxygen sensor downstream of CAT (12) | |
| 4.4 | Unclip retaining clips (7) of electrical line | For removal of the right oxygen sensor downstream of CAT (15) | |
| 5 | Detach vacuum line from vacuum pump (17) and place to one side | For removal of the right oxygen sensor downstream of CAT (15) | |
| 6 | Remove lower engine compartment paneling | AR61.20-P-1105LW | |
| 7.1 | Disconnect electrical connection (2) from transmission and separate | For removal of the right oxygen sensor upstream of CAT (1) | |
| 7.2 | Disconnect electrical connection (8) from transmission and separate | For removal of the left oxygen sensor upstream of CAT (11) | |
| 7.3 | Disconnect electrical connection (14) from transmission and separate | For removal of the left oxygen sensor downstream of CAT (12) | |
| 7.4 | Disconnect electrical connection (18) from transmission and separate | For removal of the right oxygen sensor downstream of CAT (15) | |
| 8 | Unclip electrical line of right oxygen sensor upstream of CAT (1), left oxygen sensor downstream of CAT (11) or left oxygen sensor upstream of CAT (12) or right oxygen sensor upstream of CAT (15) on bracket (3) | ||
| 9 | Detach and remove right oxygen sensor upstream of CAT (1), left oxygen sensor downstream of CAT (11), left oxygen sensor downstream of CAT (12) and right oxygen sensor upstream of CAT (15) | ||
| *BA14.00-P-1001-02B | |||
| Paste, hot lubrication 1 kg, DBL 6879.20 | *BR00.45-Z-1005-06A | ||
| Fig 3 | |||
| 10 | Install in the reverse order | ||
| 11 | Read out fault memory using the diagnostic system and clear if necessary | ||
| AD00.00-P-2000-04B | |||
| 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 | |
| 12 | Carry out an engine test run and check exhaust system for leaktightness |
OXYGEN SENSOR
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA14.00-P-1001-02B | Primary catalytic converter oxygen sensor to front exhaust system | 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 | |