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Using a 530 ecu on 525?

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 5 Series
Forum Discription: This forum will deal with any issues on the BMW 5 Series (E12, E28, E34, E39, E60 & E61)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=21513
Printed Date: 19-May-2024 at 11:07


Topic: Using a 530 ecu on 525?
Posted By: filipharvey
Subject: Using a 530 ecu on 525?
Date Posted: 01-September-2005 at 17:07

My ecu recently packed up on my e34 525 12v (Somehow the eprom had cracked) and by mistake I purchased a 530 ecu. I was told by BMW that it would not run, however, I tried it anyway and it seams to be running better than before and with more power. It even seams to have eliminated the 3500rpm flatspot.

Firstly, will this damage the engine, and secondly, if I was to use the eprom from the 530 in the 525's ecu would it work any better?



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