Will an A3 Auto trans work in A1 Turbo Diesel? - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• Will an A3 Auto trans work in A1 Turbo Diesel? by caddygtd on 02 Jan, 2006 14:28
• I just got an 83 Jetta TD with an auto trans for my girlfriend to drive.
  And I'm wondering if I could drop an auto trans from an A3 Jetta or Golf into it.
  The A3 auto trans is a 4 speed, which would be an improvement over the stock 3 speed auto in there now.
  
  But, I suspect that the A3 trans probably has some electronics and an electronically locking torque converter for highway cruising, which might make this a difficult job.
  
  Does anybody know what the feasibility of this is?
  Also, is there a difference between A3 diesel and gas transmissions?
• #1 by Maarten on 02 Jan, 2006 14:41
• One thing I know is that you'll need to fabricate your own geabox supports... those are different from the mk1/2 supports and even from the manual Mk3 supports.
  
  Not to mention the electonics that could not work without the engine ECU installed and working to communicate with.
• #2 by BlackTieTD on 03 Jan, 2006 06:46
• you would likely be better off with a mkI or mkII auto box.
• #3 by caddygtd on 03 Jan, 2006 07:03
• Quote

  you would likely be better off with a mkI or mkII auto box.

  
  I did some more research about the 4 speed auto trans and have come to the conclusion that it would be a lot of work if not impossible due to the computer control.
  It would make more sense to do a complete tdi swap.
  
  Thanks for the replies.