Results 1 to 5 of 5

Thread: 1990 525i e34 swap

  1. #1
    Join Date
    Dec 2012
    Location
    fairfax
    Posts
    48
    My Cars
    2008 e92 m3

    1990 525i e34 swap

    i did some research and found that you can do a s52 swap into a e34 1990 525i, but before i pull the trigger on buying one i just wanted to make sure 100%. did they swap over to the newer engines in the late model year of the 1990 525i?

  2. #2
    moroza's Avatar
    moroza is offline MORΩN ΛABIA BMW CCA Member
    Join Date
    Sep 2006
    Location
    BFE
    Posts
    11,090
    My Cars
    E34T

  3. #3
    Join Date
    Dec 2012
    Location
    fairfax
    Posts
    48
    My Cars
    2008 e92 m3
    Quote Originally Posted by moroza View Post
    The transition from M20 to M50 happened at different times for different markets (and maybe even within the same market). Is yours an M50 or M20?
    its the m20.

  4. #4
    Join Date
    May 2017
    Location
    Perth, Western Australia
    Posts
    1,100
    My Cars
    09/90 E34 525i (M50)
    Yeah, I got a 1990 (09/90) with a m50b25. Before 09/90 they were m20 engines.

    The engine changes are always september (more changes done 09/91 like moving the battery to under the rear seat, air flow meter, belts/tensioners so mine is different from later ones), and with 09/92 with vanos TU. And before 09/90 they were m20s.

    When looking up parts for anything always make sure you don't have just the year but also whether pre or post september when dealing with 90, 91 and 92 models. I always have to triple check everything because if I order for a 1990 model I know I'll be wrong and get m20 parts. And if I order for a 1991 or "suits all later m50 e34s" I have to check it will fit a 09/90 and not be different because it only fits post 09/91 or post 09/92 models.

    There's other non mechanical changes too, like door lock actuator changes, anti theft ews2 system, door cards etc.

    E: Also, BTW someone in this forum had a m20 525i and fitted a s52 already
    https://www.bimmerforums.com/forum/s...o-e34-s52-swap
    Last edited by fo3; 10-22-2018 at 05:18 AM.

  5. #5
    Join Date
    May 2017
    Location
    Austin Tx
    Posts
    131
    My Cars
    e34 525, s52 1993skyline
    not only is the m50 based e34 easier of a swap it also has a great deal of parts that are required to do the swap including the wiring harness intake manifold oil pan all of the accessories (alt, ps, ac,) also itll save you money if it already r134. the m50 based e34 is just 100x easier of a swap then the m20. i would wait till you find one. I actually have another e34 (m50) parts car with the motor but no trans in my possession right now.

Similar Threads

  1. E34 1990 525i s50 swapped
    By s50e34 in forum 5 series & 6 series
    Replies: 6
    Last Post: 06-17-2012, 06:14 PM
  2. 1990 525i e34 Interior Rear View Mirror broken - e39 replacement
    By stonedewok in forum 1988 - 1996 (E34)
    Replies: 5
    Last Post: 02-22-2006, 04:07 PM
  3. 1990 525i e34 vibration / shaking at around 80km/h (50mph)
    By stonedewok in forum 1988 - 1996 (E34)
    Replies: 4
    Last Post: 11-17-2005, 01:54 AM
  4. 1990 525i E34 Vibration / shaking at around 80 km/h (50 mph)
    By stonedewok in forum Tire & Wheel Forum sponsored by The Tire Rack
    Replies: 2
    Last Post: 11-17-2005, 12:59 AM
  5. FS: 1990 525i e34 5spd Portland OR, WA
    By zazen in forum BMW Cars For Sale / Wanted
    Replies: 2
    Last Post: 06-03-2005, 01:19 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •