SIX-IN-LINE · TRANSMISSION CATALOGUE
ZF 8HP50-1
ZF 8HP50-1: 8-speed automatic transmission. A separate manufacturer ratio set has been added. In BMW’s F21 sheet, 8HP50-1 first gear is 4.714, versus 5.000 for 8HP50.
A separate manufacturer ratio set has been added. In BMW’s F21 sheet, 8HP50-1 first gear is 4.714, versus 5.000 for 8HP50.
This database is the result of research carried out by Six-In-Line Kft. in its spare time.
Technical data
- Transmission version
- 8 -speed automatic
- Reference torque limit
- Not separately verified
- Manufacturer
- ZF
- BMW code reference
- No separately verified code
The torque limit is a transmission figure from the source; it does not establish engine torque or permissible tuning.
Gear ratios
BMW F21 118i and 116d automatic, 11/2018. Values were taken from the 8HP50-1 columns; identical numbers do not imply interchangeability with 8HP45. View sources
| Gear | F21 118i / 116d automata · 11/2018 | Engaged clutches / brakesFamily reference · exact variant unverified |
|---|---|---|
| Torque limit | Nincs adat | — |
| 1 gear | 4,714 | A + B + Cfamily reference |
| 2 gear | 3,143 | A + B + Efamily reference |
| 3 gear | 2,106 | B + C + Efamily reference |
| 4 gear | 1,667 | B + D + Efamily reference |
| 5 gear | 1,285 | B + C + Dfamily reference |
| 6 gear | 1,000 | C + D + Efamily reference |
| 7 gear | 0,839 | A + C + Dfamily reference |
| 8 gear | 0,667 | A + D + Efamily reference |
| Reverse (R) | -3,295 | A + B + Dfamily reference |
Reverse is consistently shown with a negative sign; BMW data sheets give the magnitude of the ratio.
Fluid data
No separately verified fluid data is available for this exact version. Determine the fluid using the full transmission identifier and BMW requirements.
ZF fluids and oil change kitsZF identification
The -1 suffix is a distinct designation in BMW’s sheet and must not be omitted.
The source gives no separate BMW/OE part number, torque limit or fluid specification for this version.
Record the full marking on the transmission housing. ZF’s guide shows both plate and stamped identification variants.
- Type designation
- The exact type shown on the plate, including every suffix.
- Full ZF catalogue number
- Catalog Number / bill-of-materials number. The full number is required to identify parts.
- Serial number
- Serial Number. Identifies the individual unit; not the same as the transmission family code.
- BMW / OE markings
- Manufacturer part numbers and other codes on the plate. Available fields vary by version.
The prefix is not a complete order number and does not by itself confirm compatibility of the specific version.
Label colour, casting marks and a suffix alone are insufficient for full identification. We do not use Excel’s general “X and Z = all-wheel drive” statement to identify the drivetrain.
ZF manufacturer identification guide (Transmission ID Charts, PDF page 3)Documented European applications (5)
F21, F22, F23, F30, F31, F36, F80, F87, G30 and F90 fitments come from research carried out by Six-In-Line Kft. in its spare time. Additional manufacturer sources and discrepancies are shown beside each result.
5 view pairings
| Chassis / model | Engine code | Recorded period | Source |
|---|---|---|---|
| F21 · 116d (116 LE / 85 kW) | 03.2015–05.2019 | B37D15U0 | 2015. 03. – 2019. 05. | Six-In-Line Kft. – independent F21 research |
| F21 · 116i (109 LE / 80 kW) | 03.2015–06.2019 | B38B15U0 | 2015. 03. – 2019. 06. | Six-In-Line Kft. – independent F21 research |
| F21 · 118i (136 LE / 100 kW) | 03.2015–06.2019 | B38B15M0 | 2015. 03. – 2019. 06. | Six-In-Line Kft. – independent F21 research |
| F22 · 218i (136 LE / 100 kW) | 03.2015–06.2021 | B38B15M0 | 2018. 11. – end date not stated | BMW Portugal – F22 2-es sorozat, Coupé LCI |
| F23 · 218i (136 LE / 100 kW) | 03.2015–06.2021 | B38B15M0 | 2018. 11. – end date not stated | BMW Portugal – F23 2-es sorozat, Cabrio LCI |
Partial coverage. Confirm the actual fitted transmission using the VIN or identification plate.
Sources and data status
Checked: 2026-09-30. Each source indicates which data it supports.
- BMW Group · F21 LCI technical data, 11/2018 · page 1
8HP50: M140i and M140i xDrive; 8HP50-1: automatic 118i and 116d. Ratios come from the named columns.
Always check the full manufacturer identifier and the actual version on your own transmission.
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