Aisin AF33 transmission

The Aisin AF33 is a 5-speed automatic transaxle developed and manufactured in Anjo, Japan by Aisin AW, a division of Aisin. It is designed to be used in transverse engine configurations in both FWD and AWD configurations.

The actual model codes are AW55-50SN and AW55-51SN. Manufactures have sometimes chosen own designations such as AF23, AF33^[1] or AF33-5 (GM),^[2] RE5F22A (Nissan and Infiniti)^[3] or SU1 (Renault).^[4] Other manufacturers use the original designation(s) or minor variations of it such as AW55-50 LE^[5] (Volvo), AW 55-51 LE ^[6] (Opel) and FA57^[7][8][9] (Saab).

Maintenance

Several manufacturers^[10] list the transmission in their owners manuals as fill for life, meaning that there are no scheduled transmission fluid changes under normal operating conditions.

Transmission experts recommend regular fluid changes for severe driving condition, every 80,000 miles. Specific fluid must be used. If incorrect fluid is used it could result in improper operation and lead to transmission damage.

Aisin recommends to follow the scheduled maintenance. A badly done oil change can destroy the transmission.

Fluid

Fluid must meet the JWS 3309 specification. The fluid can be found under varying designations.

GM Saturn: Aisin AF23/33-5 type T-IV P/N 889009250 (in Canada, P/N 22689186). Volvo AW55-50/51SN P/N 1161540-8. Nissan RE5F22A Nissan Matic "K" Fluid capacity 8.2 qt. (7.8L) Synthetic.

Exxon/Mobil manufactures a specific synthetic mineral fluid for this transmission simply called "3309".^[11]

Applications

• General Motors

• Chevrolet

• 2004–2009 Chevrolet Equinox^{[12][nb 1]} (GM code M09^[12] (FWD), M45^[12] (AWD))
• 2006–2010 Chevrolet Captiva^{[nb 2]}
• 2009 Chevrolet Epica^{[nb 3]}

• Opel / Vauxhall^[1]

• 2002–2008 Opel Vectra C ^{[nb 4] [1][13]}
• 2002–2008 Opel Signum ^{[nb 5] [1]}
• 2006–present Opel Antara^[6]

• Pontiac

• 2006–2009 Pontiac Torrent^{[12][nb 6]}

• Saab

• 2003–2007 Saab 9-3 ^[13][14]
• 2002–2009 Saab 9-5 ^[13]

• Saturn

• 2002–2003 Saturn Vue^{[nb 7]}
• 2003–2004 Saturn Ion^{[nb 8]} (GM code M43)

• Lancia
  • 2002–2008 Lancia Thesis^[10][13]
• Nissan
  • 2004–2006 Nissan Maxima (code RE5F22A)^[3]
  • 2004–2006 Nissan Quest
  • 2004–2006 Nissan Altima
• Renault
  • 2001–2007 Renault Laguna^{[nb 9]} (code SU1)^[4][13]
  • 2001–200X Renault Espace ^[13]
• Suzuki
  • 2007–2008 Suzuki XL7
• Volvo
  • 2000 Volvo S70^{[nb 10]} (FWD)^[15]
  • 2000 Volvo V70^{[nb 11]} (FWD^[15] & AWD^[16])
  • 2000–2004 Volvo C70 (FWD)^[5]
  • 2000–2004 Volvo S40 (FWD)^[17]
  • 2000–2004 Volvo V40 (FWD)^[13][17]
  • 2000–2007 Volvo S60 (FWD & AWD)^[18][19][20]
  • 2000–2005 Volvo V70 II (FWD & AWD)^[13][20]
  • 2003–2007 Volvo XC70 (AWD)^[20]
  • 2000–2006 Volvo S80 (FWD & AWD)^[20][21]
  • 2003–2006 Volvo XC90 (FWD & AWD)^[13][20][22]
  • 2004–2013 Volvo S40 II (FWD & AWD)^[20]
  • 2004–2013 Volvo V50 (FWD & AWD)^[20]
  • 2006–2013 Volvo C30 (FWD)^[20]
  • 2006–2013 Volvo C70 II (FWD)^[20]

References

See also

• List of Aisin transmissions