ZF S5-31 transmission


The ZF S5-31 transmission is a five-speed manual transmission by ZF Friedrichshafen. The transmission is designed for use in longitudinal engine applications. The transmission is rated for 310 Nm of torque. The transmission weighs ~39 kg, and holds 1.3 litres of transmission fluid.
Using different bell housings, the transmission was fitted to many different BMW engines.

Designation by BMW

The ZF S5-31 transmission is referred to as "S5D 310Z" by BMW. The transmissions made from September 1995, were made with a reinforced design and are named "S5D 320Z", and is rated for 320 Nm.
breakdown of the old BMW transmission designation

Applications

  • 1995–1999 E36 328i
  • 1992–1999 E36 M3
  • 1999-2000 E46 328i
  • 1999-2000 E46 328ci
  • 2001–2006 E46 325xi
  • 2001–2006 E46 330i
  • 1990–1992 E34 525i
  • 1992–1995 E34 530i
  • 2001–2003 E39 525i
  • 1996–2000 E39 528i
  • 2001–2003 E39 530i
  • 1996–2003 E39 535i
  • 1994–1996 E38 730i
  • 1992–1994 E32 730i
  • 1995–2001 E38 735i
  • 2000–2006 E53 X5 3.0i
  • 1996–2000 Z3 2.8i
  • 1996–2000 Z3 3.0i
  • 1996–2000 Z3 M3.2i *Canada & USA only
  • 2001–2002 Z3 M3.2i

General references

  • http://www.bilar.co.uk/saabenstein/documents/gearbox/zfS531.pdf
  • http://www.bmwclub.lv/files/05_E85_Driveline.pdf