Battery Cable: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Battery Isolation | 0.5 | 0.0 | B | |
| Negative Cable | ||||
| 325, 330 | ||||
| Convertible, Coupe, Sedan | 0.4 | 0.3 | B | |
| 328, M3 | 0.4 | 0.3 | B | |
| Positive Cable | ||||
| 325, 330 | ||||
| Convertible | 3.5 | 2.9 | B | |
| Coupe, Sedan | 3.5 | 2.7 | B | |
| M3 | ||||
| Convertible | 4.4 | 3.5 | B | |
| Coupe | 4.4 | 3.5 | B |