All BMW X7 engines have timing chains in the 2026 model year. All BMW X7 engines in the 2026 model year are interference.
Scroll down to see specific data for your model year below.
The timing belt (or chain) maintains the proper synchronization between the various engine components in a combustion engine.
If the belt or chain stretches or breaks, it can lead to catastrophic engine damage.
Timing belts have a recommended replacement interval, while timing chains are generally rated for the engines lifetime, although they need to be inspected occasionally.
| Year | Engine | Belt Or Chain | Interference | Service Interval |
|---|---|---|---|---|
| 2026 | 3.0L Turbo Mild Hybrid | Timing Chain | Interference | Lifetime |
| 2026 | 4.4L Twin-Turbo Mild Hybrid | Timing Chain | Interference | Lifetime |