SIX-IN-LINE · TRANSMISSION CATALOGUE
ZF 8HP45
ZF 8HP45 (GA8HP45Z): 8-speed automatic transmission. Excel’s ratio set was checked against BMW’s M135i data sheet. The all-wheel-drive 8HP45X has a separate sheet.
Excel’s ratio set was checked against BMW’s M135i data sheet. The all-wheel-drive 8HP45X has a separate sheet.
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
- 450 Nm
- Manufacturer
- ZF
- BMW code reference
- GA8HP45Z
450 Nm is the ZF-BMW workbook’s family-level reference. The F21 workbook lists 450 Nm petrol / 500 Nm diesel; the exact version’s limit still needs verification.
Gear ratios
BMW M135i, rear-wheel drive, 07/2013. These are internal transmission ratios; final-drive differential gearing is excluded. View sources
| Gear | M135i automata · 07/2013 | Engaged clutches / brakesShift reference from manufacturer documentation |
|---|---|---|
| Torque limit | 450 Nm | — |
| 1 gear | 4,714 | A + B + C |
| 2 gear | 3,143 | A + B + E |
| 3 gear | 2,106 | B + C + E |
| 4 gear | 1,667 | B + D + E |
| 5 gear | 1,285 | B + C + D |
| 6 gear | 1,000 | C + D + E |
| 7 gear | 0,839 | A + C + D |
| 8 gear | 0,667 | A + D + E |
| Reverse (R) | -3,295 | A + B + D |
Reverse is consistently shown with a negative sign; BMW data sheets give the magnitude of the ratio.
Fluid data
- ZF Lifeguard Fluid 8
The fluid name from Excel is not a manufacturer approval. Select fluid using the full transmission identifier and current ZF/BMW requirements. “Lifetime” alone is not a fluid specification.
ZF fluids and oil change kitsZF identification
ZF 8HP45: the catalogue shows 1090 010 …; the separate 8HP45HIS version uses 1090 014 …. Retain the HIS designation too.
The GA8HP… code reference comes from the F21 workbook. The full plate and BMW part number must be checked separately; the code reference alone does not prove interchangeability.
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 (64)
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.
64 view pairings
| Chassis / model | Engine code | Recorded period | Source |
|---|---|---|---|
| F21 · 116d (116 LE / 85 kW) | 07.2012–02.2015 | N47D20K1 | 2012. 07. – 2015. 02. | Six-In-Line Kft. – independent F21 research |
| F21 · 116i (136 LE / 100 kW) | 12.2011–02.2015 | N13B16U0 | 2011. 12. – 2015. 02. | Six-In-Line Kft. – independent F21 research |
| F21 · 118d (136 LE / 100 kW) | 12.2011–06.2019 | N47D20U1 | 2011. 12. – 2019. 06. | Six-In-Line Kft. – independent F21 research |
| F21 · 118d (143 LE / 105 kW) | 12.2011–02.2015 | N47D20U1 | 2011. 12. – 2015. 02. | Six-In-Line Kft. – independent F21 research |
| F21 · 118i (136 LE / 100 kW) | 03.2015–06.2019 | N13B16U0 | 2015. 03. – 2019. 06. | Six-In-Line Kft. – independent F21 research |
| F21 · 118i (170 LE / 125 kW) | 07.2012–06.2019 | N13B16M0 | 2012. 07. – 2019. 06. | Six-In-Line Kft. – independent F21 research |
| F21 · 120d (163 LE / 120 kW) | 07.2012–06.2019 | N47D20O1 | 2012. 07. – 2019. 06. | Six-In-Line Kft. – independent F21 research |
| F21 · 120d (184 LE / 135 kW) | 07.2012–02.2015 | N47D20O1 | 2012. 07. – 2015. 02. | Six-In-Line Kft. – independent F21 research |
| F21 · 120d (200 LE / 147 kW) | 01.2012–02.2015 | N47D20O1 | 2012. 01. – 2015. 02. | Six-In-Line Kft. – independent F21 research |
| F21 · 120i (177 LE / 130 kW) | 03.2015–06.2019 | N13B16M0 | 2015. 03. – 2019. 06. | Six-In-Line Kft. – independent F21 research |
| F21 · 125d (211 LE / 155 kW) | 12.2011–05.2019 | N47D20T1 | 2011. 12. – 2019. 05. | Six-In-Line Kft. – independent F21 research |
| F21 · 125d (218 LE / 160 kW) | 12.2011–02.2015 | N47D20T1 | 2011. 12. – 2015. 02. | Six-In-Line Kft. – independent F21 research |
| F21 · 125i (218 LE / 160 kW) | 12.2011–12.2019 | N20B20M0 | 2011. 12. – 2019. 12. | Six-In-Line Kft. – independent F21 research |
| F21 · 125i (238 LE / 175 kW) | 03.2013–06.2019 | N20B20M0 | 2013. 03. – 2019. 06. | Six-In-Line Kft. – independent F21 research |
| F21 · M135i (320 LE / 235 kW) | 12.2011–06.2016 | N55B30O0 | 2011. 12. – 2016. 06. | Six-In-Line Kft. – independent F21 research |
| F21 · M135i (326 LE / 240 kW) | 03.2015–06.2016 | N55B30O0 | 2015. 03. – 2016. 06. | Six-In-Line Kft. – independent F21 research |
| F22 · 218d (143 LE / 105 kW) | 03.2014–06.2015 | N47D20U1 | 2014. 03. – 2015. 06. | Six-In-Line Kft. – F22/F87 research carried out in spare time |
| F22 · 220d (163 LE / 120 kW) | 11.2014–09.2020 | B47D20O0 | 2014. 11. – 2020. 09. | Six-In-Line Kft. – F22/F87 research carried out in spare time |
| F22 · 220d (184 LE / 135 kW) | 10.2013–06.2017 | N47D20O1 | 2013. 10. – 2017. 06. | Six-In-Line Kft. – F22/F87 research carried out in spare time |
| F22 · 220d (200 LE / 147 kW) | 10.2012–11.2014 | N47D20O1 | 2012. 10. – 2014. 11. | Six-In-Line Kft. – F22/F87 research carried out in spare time |
| F22 · 220i (184 LE / 135 kW) | 10.2013–06.2016 | N20B20U0 | 2013. 10. – 2016. 06. | Six-In-Line Kft. – F22/F87 research carried out in spare time |
| F22 · 225d (218 LE / 160 kW) | 01.2014–06.2017 | N47D20T1 | 2014. 01. – 2017. 06. | Six-In-Line Kft. – F22/F87 research carried out in spare time |
| F22 · 228i (245 LE / 180 kW) | 07.2014–06.2016 | N20B20O0 | 2014. 07. – 2016. 06. | Six-In-Line Kft. – F22/F87 research carried out in spare time |
| F22 · M235i (326 LE / 240 kW) | 10.2013–06.2016 | N55B30O0 | 2013. 10. – 2016. 06. | Six-In-Line Kft. – F22/F87 research carried out in spare time |
| F23 · 220i (184 LE / 135 kW) | 04.2014–06.2016 | N20B20U0 | 2014. 04. – 2016. 06. | Six-In-Line Kft. – F23 research carried out in spare time |
| F23 · 228i (245 LE / 180 kW) | 11.2014–06.2016 | N20B20O0 | 2014. 11. – 2016. 06. | Six-In-Line Kft. – F23 research carried out in spare time |
| F23 · M235i (326 LE / 240 kW) | 11.2014–06.2016 | N55B30O0 | 2014. 11. – 2016. 06. | Six-In-Line Kft. – F23 research carried out in spare time |
| F30 · 316d (116 LE / 85 kW) | 03.2012–02.2015 | N47D20K1 | 2012. 03. – 2015. 02. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 316i (136 LE / 100 kW) | 07.2012–06.2015 | N13B16U0 | 2012. 07. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 318d (136 LE / 100 kW) | 03.2012–06.2015 | N47D20U1 | 2012. 03. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 318d (143 LE / 105 kW) | 03.2012–06.2015 | N47D20U1 | 2012. 03. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 320d (163 LE / 120 kW) | 11.2011–06.2015 | N47D20O1 | 2011. 11. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 320d (184 LE / 135 kW) | 11.2011–06.2015 | N47D20O1 | 2011. 11. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 320d (200 LE / 147 kW) | 11.2011–06.2015 | N47D20O1 | 2011. 11. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 320i (170 LE / 125 kW) | 11.2012–06.2016 | N13B16M0 | 2012. 11. – 2016. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 320i (184 LE / 135 kW) | 03.2012–06.2015 | N20B20U0 | 2012. 03. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 325d (218 LE / 160 kW) | 03.2013–02.2016 | N47D20T1 | 2013. 03. – 2016. 02. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 328i (245 LE / 180 kW) | 11.2011–06.2015 | N20B20O0 | 2011. 11. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 335i (306 LE / 225 kW) | 11.2011–06.2015 | N55B30M0 | 2011. 11. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 335i (326 LE / 240 kW) | 11.2011–06.2013 | N55B30M0 | 2011. 11. – 2013. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F30 · 335i (340 LE / 250 kW) | 07.2013–06.2015 | N55B30M0 | 2013. 07. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 316d (116 LE / 85 kW) | 11.2012–02.2015 | N47D20K1 | 2012. 11. – 2015. 02. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 316i (136 LE / 100 kW) | 03.2013–06.2015 | N13B16U0 | 2013. 03. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 318d (136 LE / 100 kW) | 11.2012–06.2015 | N47D20U1 | 2012. 11. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 318d (143 LE / 105 kW) | 11.2012–06.2015 | N47D20U1 | 2012. 11. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 320d (163 LE / 120 kW) | 07.2012–06.2015 | N47D20O1 | 2012. 07. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 320d (184 LE / 135 kW) | 07.2012–06.2015 | N47D20O1 | 2012. 07. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 320d (200 LE / 147 kW) | 07.2012–06.2015 | N47D20O1 | 2012. 07. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 320i (184 LE / 135 kW) | 11.2012–06.2015 | N20B20U0 | 2012. 11. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 325d (218 LE / 160 kW) | 03.2013–02.2016 | N47D20T1 | 2013. 03. – 2016. 02. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 328i (245 LE / 180 kW) | 07.2012–06.2015 | N20B20O0 | 2012. 07. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 335i (306 LE / 225 kW) | 03.2013–06.2015 | N55B30M0 | 2013. 03. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 335i (326 LE / 240 kW) | 03.2013–06.2013 | N55B30M0 | 2013. 03. – 2013. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F31 · 335i (340 LE / 250 kW) | 07.2013–06.2015 | N55B30M0 | 2013. 07. – 2015. 06. | Six-In-Line Kft. – F30/F31/F80 research carried out in spare time |
| F36 · 418d (136 LE / 100 kW) | 03.2014–06.2015 | N47D20U1 | 2014. 03. – 2015. 06. | Six-In-Line Kft. – F36 research conducted in spare time |
| F36 · 418d (143 LE / 105 kW) | 03.2014–06.2015 | N47D20U1 | 2014. 03. – 2015. 06. | Six-In-Line Kft. – F36 research conducted in spare time |
| F36 · 420d (163 LE / 120 kW) | 03.2014–06.2015 | N47D20O1 | 2014. 03. – 2015. 06. | Six-In-Line Kft. – F36 research conducted in spare time |
| F36 · 420d (184 LE / 135 kW) | 03.2014–02.2015 | N47D20O1 | 2014. 03. – 2015. 02. | Six-In-Line Kft. – F36 research conducted in spare time |
| F36 · 420d (200 LE / 147 kW) | 03.2014–02.2015 | N47D20O1 | 2014. 03. – 2015. 02. | Six-In-Line Kft. – F36 research conducted in spare time |
| F36 · 420i (163 LE / 120 kW) | 03.2014–02.2016 | N20B20U0 | 2014. 03. – 2016. 02. | Six-In-Line Kft. – F36 research conducted in spare time |
| F36 · 420i (184 LE / 135 kW) | 03.2014–02.2016 | N20B20U0 | 2014. 03. – 2016. 02. | Six-In-Line Kft. – F36 research conducted in spare time |
| F36 · 428i (245 LE / 180 kW) | 03.2014–02.2016 | N20B20O0 | 2014. 03. – 2016. 02. | Six-In-Line Kft. – F36 research conducted in spare time |
| F36 · 435i (306 LE / 225 kW) | 03.2014–02.2016 | N55B30M0 | 2014. 03. – 2016. 02. | Six-In-Line Kft. – F36 research conducted in spare time |
| F36 · 435i (340 LE / 250 kW) | 03.2014–02.2016 | N55B30M0 | 2014. 03. – 2016. 02. | Six-In-Line Kft. – F36 research conducted in spare time |
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 Ibérica · 1 Series, 07/2013 · PDF page 2
M135i automatic and M135i xDrive: 8HP45, gears 1–8 and reverse. The document uses the 8HP45 family designation for both drivetrains.
- ZF manufacturer catalogue · identification and 8HP45 bill-of-materials numbers
PDF page 3: identification plate; pages 36–37: 8HP45 / HIS and 8HP45X / XHIS number sequences. Only identification data was taken from the US catalogue.
Our research workbook: BMW_F21_sixinline_valtoadatok_es_kezi_kivitelek.xlsx · Váltó adatlapok · A4:N4. Code references from Excel do not constitute full manufacturer verification.
Always check the full manufacturer identifier and the actual version on your own transmission.
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