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, at least every 30,000 miles. Specific fluid must be used. If incorrect fluid is used it could result in improper operation and lead to transmission damage.

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

  • Chevrolet
  • Opel / Vauxhall[1]
  • Pontiac
  • Saab
  • Saturn
  1. ↑ 3.4L engine only
  2. ↑ V6
  3. ↑ 2.5L petrol
  4. ↑ select engines only
  5. ↑ select engines only
  6. ↑ 3.4L engine only
  7. ↑ V6 only
  8. ↑ Sedan only
  9. ↑ V6 and 2.2dci
  10. ↑ Non turbo petrol only
  11. ↑ Non turbo petrol and R AWD model only

References

  1. 1 2 3 4 http://www.opel-infos.de/getriebe/af23_33.html
  2. ↑ http://www.amawebs.com/storage/docs/h43cs52ebhg.pdf
  3. 1 2 http://www.atraonline.com/gears/2008/2008-10/2008_10_44.pdf
  4. 1 2 ftp://host217-41-52-224.in-addr.btopenworld.com/array1/share/Renault/Disc%202/dialogys/data/mrnt/en/nt/big/NT3800/3825A.pdf
  5. 1 2 http://new.volvocars.com/ownersdocs/2004/2004_c70/04c70c_09.htm#pg129
  6. 1 2 http://www.opel-infos.de/getriebe/aw55.html
  7. ↑ http://www.saabcentral.com/forums/showthread.php?t=245847
  8. ↑ http://saabworld.net/f144/transmission-type-manufacture-date-serial-numbers-saab-9-5-a-29490/
  9. ↑ http://www.makcotransmissionparts.com/AW-55-50SN.html
  10. 1 2 http://www.thesis-treffen.de/index.php/loesungen/problemloesungenm/124-spuelung-des-automatikgetriebes-nach-der-tim-eckardt-methode
  11. ↑ "Products & Services: Mobil 1™ – the world's leading synthetic motor oil brand". ExxonMobil.
  12. 1 2 3 4 http://www.xtremethings.com/Engineering/PDF-Refs/GM-Transmissions.pdf
  13. 1 2 3 4 5 6 7 8 9 http://www.automatik-getriebe-berlin.de/automatikgetriebefaupel/getriebe/oelkAW55.pdf
  14. ↑ http://saabinfo.net/files/pdf/SAAB_9-3MY04.pdf
  15. 1 2 http://new.volvocars.com/ownersdocs/2000/2000_sv70/00sv70_09.htm#pg137
  16. ↑ http://new.volvocars.com/ownersdocs/2000/2000_specs/2000_V70.html
  17. 1 2 http://new.volvocars.com/ownersdocs/2004/2004_s40-v40/04sv40_09.htm#pg125
  18. ↑ http://new.volvocars.com/ownersdocs/2007/2007_s60/07s60_10.htm#pg202
  19. ↑ http://new.volvocars.com/ownersdocs/2003/2003_s60/03s60_12.htm#pg154
  20. 1 2 3 4 5 6 7 8 9 https://www.volvotechinfo.com/index.cfm?event=item.view.modelRelevance&product_id=281423&itemClass=SERVICE&partNumber=RTJ21324-2009-07-10 Tech bulletin
  21. ↑ http://new.volvocars.com/ownersdocs/2000/2000_s80/00s80_09.htm#pg121
  22. ↑ http://new.volvocars.com/ownersdocs/2003/2003_XC90/03xc90_10.htm#pg152

See also

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