Oxygen Sensor: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| 525i, 525xi, 530i, 530xi | ||||
| Engine Control | ||||
| One | 0.2 | 0.1 | B | |
| Both | 0.4 | 0.2 | B | |
| Monitor | ||||
| Manual Trans | ||||
| One | 2.7 | 1.9 | B | |
| Both | 2.9 | 2.0 | B | |
| Auto Trans | ||||
| One | 3.5 | 2.4 | B | |
| Both | 3.7 | 2.5 | B | |
| 545i, 550i | ||||
| Engine Control | ||||
| Right | 0.9 | 0.7 | B | |
| Left | 1.1 | 0.8 | B | |
| Both | 1.4 | 1.0 | B | |
| Monitor | ||||
| One | 0.7 | 0.6 | B | |
| Both | 0.9 | 0.7 | B |