Valve Guide Seal: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Dual Timing Chain | ||||
| 323 | ||||
| All Cylinders | 16.7 | 11.8 | B | |
| 328i | ||||
| All Cylinders | 12.0 | 9.6 | B | |
| 328iC, is, Ci | ||||
| All Cylinders | 12.1 | 9.7 | B | |
| M3 | ||||
| Convertible | ||||
| Manual Trans | 16.7 | 11.8 | B | |
| Auto Trans | 16.7 | 11.9 | B | |
| Coupe | 16.7 | 11.8 | B |