Remove/install heated O2 sensor - AR07.52-P-5303RX (SL550)
ENGINE 273 in MODEL 230
| Remove/install | |||
|---|---|---|---|
| Risk of injury to skin and eyes caused by handling hot or glowing objects. | Wear safety gloves, protective clothing and safety glasses, if necessary. | - | |
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| 1 | Turn key in ignition switch to position "0". | Vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until ignition is switched off. | |
| 2 | Remove bottom engine compartment paneling | AR61.20-P-1105R | |
| 3 | Unclip electrical connector and electrical feed line for corresponding O2 sensor out of retaining clamps on the transmission | ||
| 4 | Disconnect electrical connector for corresponding O2 sensor | ||
| 5 | Unscrew corresponding O2 sensor out of the catalytic converter | Installation: Coat the thread with heat-resistant lubricant. | |
| *BA14.00-P-1002-01A | |||
| Fig 2 | |||
| Paste | *BR00.45-Z-1005-06A | ||
| 6 | Install in the reverse order | ||
| 7 | Connect STAR DIAGNOSIS and read out fault memory 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 running engine | Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 8 | Conduct engine test run and inspect exhaust system for leaks |
O2 SENSOR
| Number | Designation | Engine 273 | |
|---|---|---|---|
| BA14.00-P-1002-01A | O2 sensor to 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 |