Remove/install heated O2 sensor - AR07.52-P-5303W
ENGINES 276 in MODEL 172
| Remove/install | |||
| Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof | Keep body parts and limbs well clear of moving parts. | AS00.00-Z-0011-01A | |
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. | AS00.00-Z-0010-01A | |
| 1 | Switch off ignition | ||
| 2 | Remove front engine cover (1) | ||
| 3 | Remove air filter housing (2). | To remove the right oxygen sensors (G3/4, G3/6) | |
| *BA09.10-P-1001-01M | |||
| *BA09.10-P-1002-01M | |||
| 4 | Unclip electrical lines (11) for ME-SFI [ME] control unit (N3/10) on vacuum reservoir (4) | To remove the left oxygen sensors (G3/3, G3/5) | |
| 5 | Pull ME-SFI [ME] control unit (N3/10) out of bracket and put to one side with electrical lines (11) connected | To remove the left oxygen sensors (G3/3, G3/5) | AR07.08-P-7008W |
| Remove oxygen sensor downstream of catalytic converter (G3/5 or G3/6) | |||
| 6 | Remove engine compartment paneling | AR61.20-P-1105W | |
| 7 | Unclip electrical connector (6 or 8) at bracket and disconnect | ||
| 8 | Unclip electrical line (10) at shield (13) and crankcase | To remove the left oxygen sensor (G3/5) | |
| 9 | Remove oxygen sensor (G3/5 or G3/6) from catalytic converter | ||
| *BA14.00-P-1002-01A | |||
| Figure | |||
| Paste | *BR00.45-Z-1005-06A | ||
| Remove oxygen sensor upstream of catalytic converter (G3/3 or G3/4) | |||
| 10 | Remove vacuum reservoir (4) | To remove the left oxygen sensor (G3/3) | |
| *BA43.05-P-1002-01K | |||
| 11 | Unclip electrical line (12) on air filter housing (2) bracket | To remove the right oxygen sensor (G3/4) | |
| 12 | Unclip electrical connector (7 or 9) at bracket and disconnect | ||
| 13 | Remove oxygen sensor (G3/3 or G3/4) from catalytic converter | ||
| *BA14.00-P-1005-01A | |||
| Figure | |||
| Paste | *BR00.45-Z-1005-06A | ||
| 14 | Install in the reverse order | ||
| 15 | Read out fault memory with STAR DIAGNOSIS and erase if necessary | AD00.00-P-2000-04A | |
| Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 16 | Test run engine and check exhaust system for leaks |
O2 SENSOR
| Number | Designation | Engine 276 | |
|---|---|---|---|
| BA14.00-P-1002-01A | O2 sensor on catalytic converter | Nm | 50 |
| BA14.00-P-1005-01A | Control sensor upstream of catalytic converter | Nm | 50 |
VACUUM PUMP
| Number | Designation | Engine 276 | |
|---|---|---|---|
| BA43.05-P-1002-01K | Bolt, vacuum reservoir to bracket | Nm | 9 |
AIR FILTER
| Number | Designation | Engine 276 | |
|---|---|---|---|
| BA09.10-P-1001-01M | Bolt, air filter to cylinder head cover | Nm | 9 |
| BA09.10-P-1002-01M | Bolt, air filter to air intake pipe support brace | 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 |