I have had little luck finding details.
Originally Posted by Andrew*Debbie
The DME is a Siemens MSV 80. I'm looking for data.
This is the best I've found so far. Worth a read. Sounds like Siemens engineers may provide the software to BMW. Or maybe they work together. There is a Z4 hooked up to a development system in one of the photos. The photo on the first page is a BMW, with the steering wheel Photoshoped to remove the logo. Hardly conclusive, but it is the best I could find.
The Siemens EMS 2 ECU is 512kB to 4MB flash, 32Kb to 144kB RAM and 8k to 48k SPRAM.
SPRAM -- Static Parameter RAM? That's my guess. If that is where they stuff the fault codes, then even 48K isn't much for a data recorder. Not all of it is going to be available either. I'd guess that is where the DME adaptive parameters are stored too.
I have no idea if the BMW MSV 80 DME is built on EMS 2 platform though. There are several standard sizes. I'm sure they could do a full custom too. If that is the case, then the EMS 2 specs are meaningless.
Continental bought SiemensVDO last year....
The models and equipment (standard and optional) illustrated in this post reflect my misunderstanding of vehicles supplied by BMW AG to the German market. In other EU member states, the truthyness of my posts may vary. Please ignore this post. Subject to change.
Last edited by Andrew*Debbie; 02-18-2008 at 02:27 PM.