Engineering:Aisin AF33 transmission

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Short description: Automatic transmission made by Toyota subsidiary Aisin

The Aisin AW 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 km (50,000 mi). 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.

Reliability

Some AF33 transmissions – specifically the variants used in Volvo vehicles – were very unreliable, with failures occurring within 80,000 km (50,000 mi) on some vehicles. Volvo eventually released an upgrade package to address the issue.[11]

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 88900925 (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".[12]

Applications

Ford Motor Company

Ford
  • 2008–2012 Ford Kuga 2.5T AWD

General Motors

Chevrolet
Opel / Vauxhall[1]
Pontiac
Saab
Saturn

Lancia

Nissan

Renault

Suzuki

Volvo

See also

Notes

  1. 3.4L engine only
  2. V6 3.2, 2.0 vcdi
  3. L6 2.0L, L6 2.5L petrol, 2.0 vcdi
  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. 1.0 1.1 1.2 1.3 Tobias Hartmann (27 October 2009). "AF23 33" (in de). http://www.opel-infos.de/getriebe/af23_33.html. 
  2. General Motors Corporation (2004). "Aisin AF 33-5 Automatic Transaxle Introduction" (in en). http://www.amawebs.com/storage/docs/h43cs52ebhg.pdf. 
  3. 3.0 3.1 Lance Wiggins (October 2008). "Let's Play Ball: Understanding the Diagnostics for Nissan's RE5F22A 5-speed" (in en). pp. 44–51. http://www.atraonline.com/gears/2008/2008-10/2008_10_44.pdf. 
  4. 4.0 4.1 "Renault SU1" (in en). ftp://host217-41-52-224.in-addr.btopenworld.com/array1/share/Renault/Disc%202/dialogys/data/mrnt/en/nt/big/NT3800/3825A.pdf. [yes|permanent dead link|dead link}}]
  5. 5.0 5.1 Volvo Car Corporation (2003). "2004 Volvo C70" (in en). p. 129. http://new.volvocars.com/ownersdocs/2004/2004_c70/04c70c_09.htm#pg129. 
  6. 6.0 6.1 Tobias Hartmann (2 May 2014). "AW55" (in de). http://www.opel-infos.de/getriebe/aw55.html. 
  7. unclemiltie (2 January 2013). "Transmissions - which one?" (in en). p. 1. http://www.saabcentral.com/forums/showthread.php?t=245847. 
  8. SaabWorld (username) (2 January 2013). "Transmission type, manufacture date and serial numbers - Saab 9-5" (in en). http://saabworld.net/f144/transmission-type-manufacture-date-serial-numbers-saab-9-5-a-29490/. 
  9. "AW-BW AW 55-50SN, RE5F22A, AF33-5" (in en). http://www.makcotransmissionparts.com/AW-55-50SN.html. 
  10. 10.0 10.1 Ivo Maynicke. "Spülung des Automatikgetriebes nach der Tim Eckardt Methode" (in de). http://www.thesis-treffen.de/index.php/loesungen/problemloesungenm/124-spuelung-des-automatikgetriebes-nach-der-tim-eckardt-methode. 
  11. david87 (2011-12-24). "A Complete Guide to S60 Transmission Shift Flares, Slipping or Missing Gears". https://volvoforums.com/forum/volvo-s60-v60-10/complete-guide-s60-transmission-shift-flares-slipping-missing-gears-59684/. 
  12. "Products & Services: Mobil 1™" (in en). Archived from the original on 2014-01-02. https://web.archive.org/web/20140102200154/http://exxonmobil.com/Lubes/products_brands_passenger_mobil1.aspx. 
  13. 13.0 13.1 13.2 13.3 "FWD Transmissions available on GM vehicles" (in en). pp. 1–2. http://www.xtremethings.com/Engineering/PDF-Refs/GM-Transmissions.pdf. 
  14. 14.0 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 14.9 Automatik Getriebe Faupel GmbH (2014). "Aisin Warner AW 55-50" (in de). http://www.automatik-getriebe-berlin.de/automatikgetriebefaupel/getriebe/oelkAW55.pdf. 
  15. Saab Automobile AB (2003). "Owner's Manual Saab 9-3 M2004" (in en). p. 273. http://saabinfo.net/files/pdf/SAAB_9-3MY04.pdf. 
  16. 16.0 16.1 Volvo Car Corporation (1999). "2000 Volvo S & V70" (in en). p. 137. http://new.volvocars.com/ownersdocs/2000/2000_sv70/00sv70_09.htm#pg137. 
  17. Volvo Cars of North America (1999). "2000 Volvo V70 specs" (in en). http://new.volvocars.com/ownersdocs/2000/2000_specs/2000_V70.html. 
  18. 18.0 18.1 Volvo Car Corporation (2003). "2004 Volvo S40 & V40" (in en). p. 125. http://new.volvocars.com/ownersdocs/2004/2004_s40-v40/04sv40_09.htm#pg125. 
  19. Volvo Car Corporation (2006). "2007 Volvo S60" (in en). p. 202. http://new.volvocars.com/ownersdocs/2007/2007_s60/07s60_10.htm#pg202. 
  20. Volvo Car Corporation (2002). "2003 Volvo S60" (in en). p. 154. http://new.volvocars.com/ownersdocs/2003/2003_s60/03s60_12.htm#pg154. 
  21. 21.0 21.1 21.2 21.3 21.4 21.5 21.6 21.7 21.8 Volvo Cars of North America (2009). "Tech Doc" (in en). https://www.volvotechinfo.com/index.cfm?event=item.view.modelRelevance&product_id=281423&itemClass=SERVICE&partNumber=RTJ21324-2009-07-10. 
  22. Volvo Car Corporation (1999). "2000 Volvo S80" (in en). p. 121. http://new.volvocars.com/ownersdocs/2000/2000_s80/00s80_09.htm#pg121. 
  23. Volvo Car Corporation (2003). "2003 Volvo XC90" (in en). p. 152. http://new.volvocars.com/ownersdocs/2003/2003_XC90/03xc90_10.htm#pg152.