SIX-IN-LINE · TRANSMISSION CATALOGUE
ZF GS6-45BZ
ZF GS6-45BZ: 6-speed manual transmission. Identification sheet using ratios for a manufacturer-documented F11 reference version. The F21 workbook’s manual-transmission ratio fields are empty; F11 data does not automatically verify the F21 version.
Identification sheet using ratios for a manufacturer-documented F11 reference version. The F21 workbook’s manual-transmission ratio fields are empty; F11 data does not automatically verify the F21 version.
This database is the result of research carried out by Six-In-Line Kft. in its spare time.
Technical data
- Transmission version
- 6 -speed manual
- Reference torque limit
- 470 Nm
- Manufacturer
- ZF
- BMW code reference
- GS6-45BZ
The torque limit is manufacturer data only for the specific F11 reference version named in the table.
Gear ratios
F11 535i · N55B30M0 referencia. Az F21 alkalmazások áttételei külön ellenőrzést igényelnek; az azonos alapkód több alkivitelhez is tartozhat. View sources
| Gear | F11 535i · N55B30M0 referencia |
|---|---|
| Torque limit | 470 Nm |
| 1 gear | 4,110 |
| 2 gear | 2,315 |
| 3 gear | 1,542 |
| 4 gear | 1,179 |
| 5 gear | 1,000 |
| 6 gear | 0,846 |
| Reverse (R) | -3,727 |
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 identification
ZF gyártmányú, hatfokozatú kézi váltó. A teljes BMW GS6-kódot, a kivitelazonosító utótagot és az OE-cikkszámot együtt kell feljegyezni.
In BMW’s code system, B/D refers to gear-set design; the final G indicates Getrag and Z indicates ZF.
Record the full marking on the transmission housing.
- Type designation
- The exact type shown on the plate, including every suffix.
- Manufacturer version identifier
- All letters, digits and suffixes of the transmission code; a casting mark alone is insufficient.
- 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.
Documented European applications (3)
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.
3 view pairings
| Chassis / model | Engine code | Recorded period | Source |
|---|---|---|---|
| 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 |
| F21 · M140i (340 LE / 250 kW) | 10.2015–06.2019 | B58B30M0 | 2015. 10. – 2019. 06. | Six-In-Line Kft. – independent F21 research |
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 Technical Training · F11 Drive · PDF page 27 (published copy)
BMW manual transmission codes: 6 speeds, B/D gear-set design, G = Getrag, Z = ZF; X indicates an all-wheel-drive version.
- BMW Technical Training · F11 Drive · PDF pages 28, 30–31 (published copy)
GS6-17BG (F11 N53B30U0), GS6-45BZ (F11 N55B30M0), GS6-45DZ (F11 N47D20O1): ratios and input torque. These are the stated F11 reference versions.
Our research workbook: BMW_F21_sixinline_valtoadatok_es_kezi_kivitelek.xlsx · Váltó adatlapok · A10:N10. Code references from Excel do not constitute full manufacturer verification.
Always check the full manufacturer identifier and the actual version on your own transmission.
Back to transmission types