R3VLimited Forums

Go Back   R3VLimited Forums > E34/E28 Forums > General 5 Series Technical

Reply
 
Thread Tools
Old 11-30-2015, 11:04 PM   #1
noypi2
Grease Monkey
 
Join Date: Jun 2014
Location: San Diego CA
Posts: 384
E34 Touring Transmission Slipping

I have a 1993 E34 525i Touring with auto trans. PO swapped the motor and Auto trans from a low mileage 1994 E34 525i sedan. My issue is my transmission is slipping and then goes to limp mode. We did a diagnostic but the EGS does not communicate to the computer. PO said he still have the 1993 EGS module installed on the 1994 transmission. Would installing a 1994 EGS module solve the problem. Any help would be appreciated. Thanks.
noypi2 is offline   Reply With Quote
Old 12-01-2015, 02:54 AM   #2
tricars
Member
 
tricars's Avatar
 
Join Date: Feb 2015
Location: Europe
Posts: 85
Was the gearbox clean and dry? Mine was slipping due to low oil level from dead leaking seals.
__________________
85 coupe 318i(M10) winter fun machine
88 sedan 318i Sold
88 touring 324td M62B46 swap in progress
89 touring 325ix big welding project
91 cabrio 320i Sold
92 touring 525tds Slow build
tricars is offline   Reply With Quote
Old 02-15-2016, 10:21 AM   #3
m735is
Noobie
 
Join Date: Dec 2011
Location: Hamburg, NY
Posts: 26
Did the PO ever have the car running with that setup?

If not, and if the fluid is correct, then you can try the 94 EGS.

The 93 EGS should have IH on the case from 9/92-9/93 with the tranny A4S310R-RG.

The 94 could have KH or LZ on the EGS with a tranny ending in RH.
I'm not sure if the tranny RG or RH would make a difference.

The EGS letters could have to do with whether or not the car had EML or ASC or whatever options. If you try a 94 EGS, try to match up the donor car to your car.

Also make sure your battery and electrical are working 100%-
m735is is offline   Reply With Quote
Old 11-19-2016, 07:46 PM   #4
nvestor888
Member
 
Join Date: Mar 2012
Location: Brooklyn,NY
Posts: 57
Would an automatic transmission from an e36 m3 plug and play?
nvestor888 is offline   Reply With Quote
Old 01-12-2017, 09:25 PM   #5
Hans747
Noobie
 
Join Date: Jan 2017
Location: Asheville, NC
Posts: 4
Quote:
Originally Posted by nvestor888 View Post
Would an automatic transmission from an e36 m3 plug and play?
Common thing that will cause slipping: Low fluid level. Have you checked that?

Common thing that can cause limp mode: low battery or dirty contacts for the battery connectors.

Start there.

I'm not 100% sure if the M3 transmission will plug and play. But I'm inclided to say yes. The early M3 years for this car were basically 325is with a trim package. And the 325is had the basic 4l30e transmission. But a 325i transmission of the similar year should swap over.

If it helps you, I have the TCU from a 1993 525i up on ebay right now.

http://www.ebay.com/itm/322389081999...witem=&vxp=mtr
Hans747 is offline   Reply With Quote
Old 03-02-2017, 12:56 PM   #6
Colbatronbmwes
Member
 
Join Date: Jun 2011
Location: Seattle
Posts: 53
I had this issue with my 95 525 touring. I went to check the fluid level and the transmission was full. As in completely full. I think the PO filled the tranny on a bench. I opened the filler hole and 2-3 quarts of extra fluid came out. It is running fine now. lol
Colbatronbmwes is offline   Reply With Quote
Old 03-23-2017, 09:55 AM   #7
dunkman23
Noobie
 
Join Date: Mar 2016
Location: 916 NorCal
Posts: 5
i have a spare 525iT tranny if you want it. Im in NorCal tho.
dunkman23 is offline   Reply With Quote
Old 03-27-2017, 03:49 PM   #8
noypi2
Grease Monkey
 
Join Date: Jun 2014
Location: San Diego CA
Posts: 384
Sorry... have not follow up on this thread for a while... did a s50 and a manual swap on the Touring. Problem solved. Thanks everyone.

Sent from my SM-G930T using Tapatalk
noypi2 is offline   Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 01:38 AM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2004 - 2020 R3VLimited LLC