The ZF 8HP100 8-speed automatic transmission has been produced at the German company’s factories since 2022 and is installed in hybrid models such as the BMW XM, as well as the M5 sedans and wagons. This transmission is known internally by BMW as the GA8P100XPH.
Specifications
| Type | automatic transmission |
| Number of gears | 8 |
| Type of drive | all wheel |
| Engine volume, l | up to 4.4 Bi-Turbo |
| Torque output, Nm | up to 1000 |
| Recommended oil | ZF Lifeguard Hybrid 2 |
| Oil capacity, liter | 9.9 |
| Partial replacement, liter | 7.0 |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
Gear ratios ZF 8HP100
Using the 2024 BMW XM with a 4.4 bi-turbo engine as an example:
| Main | 3.636 |
| 1st | 5.000 |
| 2nd | 3.200 |
| 3rd | 2.143 |
| 4th | 1.720 |
| 5th | 1.297 |
| 6th | 1.000 |
| 7th | 0.833 |
| 8th | 0.640 |
| Reverse | 3.968 |
Using
The transmission was installed on:
- BMW M5-Series G90 in 2024 – …;
- BMW XM-Series G09 in 2022 – …
Disadvantages of the ZF 8HP100 gearbox
- This transmission is new, and detailed breakdown statistics haven’t yet been compiled;
- The first owners often complained of jolts and jerks, but firmware updates fixed everything;
- However, in some cases, a complete transmission fluid change was required;
- There are also several cases described on specialized forums where the wiring harness needed to be replaced under warranty;
- Since this transmission is installed with a V8 bi-turbo engine, the torque converter clutch wears out quickly.
