Engine Control Module EPROM Programming: Notes
WARNING: This page does not describe the selected car, but rather 333 other vehicles, including the 2007 BMW Z4, 2007 BMW X5, 2007 BMW X3, 2007 BMW M6, and 2007 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.
With the introduction of M3.X & DME/ECM control modules it was no longer necessary to replace the entire control module in order to install updated engine operating programs and/or data.
ENGINE CONTROL MODULE EPROM PROGRAMMING DATA
| M3.X | DME/ECM Version | Vehicle Application |
| M3.1 | E36 - 325i/is (up to 8/92) | |
| E34 - 525i (up to 8/92) | ||
| M3.3 | E31 - 840Ci (9/93 - 12/95) | |
| E32 - 740i/iL (9/92 - 8/94) | ||
| E34 - 530i/it & 540i (3/93 - 12/95) | ||
| E38 - 740i/iL (9/94 - 12/95) | ||
| M3.3.1 | E36 - 325i/is & M3 (as of 9/92) | |
| E34 - 525i/it (as of 9/92) |
M3.x engine control modules allow EPROMs:
- To be removed & replaced
- Programmed or updated depending on control module version