M3.x / MP3.x / MP7.x
BMW DME 403/413-era ECUs plus the PSA/Citroën MP3.2/MP3.x-PSA/MP7.2 variants.
| Era | 1989–1999 |
| File sizes | 32–256 KB |
| Variants | M3.1 (DME 403), M3.3 (DME 413), MP3.2 (Citroën ZX 2.0 16V), MP7.2 |
| Vehicles | BMW E30/E36, PSA/Citroën |
Detection
Two checks, and no size gate: reject on any modern Bosch / ME7 / Siemens exclusion signature, then accept if an M3.x family marker appears in the first 512 KB.
Checksums: the IronFelix M3.x-5.x profile verifies M3.8-class files. See Checksums command docs.