RomRaider

whats up guys? A good friend of mine just picked up a 04 e46 and its ms45. After pulling the ecu and confirming the dme as ms45 i did a little digging to see what tools are needed for read and write seems bdm works for desktop reading and kess v2 can read ms45 too. I have a kess clone master and tried reading the car threw port and straight off didnt have good luck. found that his aftermarket radio was install wrong and was back feeding power to k line. fixed that then i could connect with the bmw logger and kess. After i was able to id the dme with kess i tried reading and was given some generic error and failed read. Cycled the key after the failed read and test started the car all was ok but i wasnt able to reconnect to the car with kess or the logger after the original connection when kess was able to id the dme. by the time i was done messing around it was getting late so i called it for the night. my next plan is to cut k line off the dme and try programming directly. If this works out we will have a reading and writing with checksums!! I also have some ms45 map packs and orig file.
thanks
marty

so i was able to get a read from the car by wiring k line direct to the obd2 port with the kess clone. kess also does the checksums too.
https://www.ebay.com/itm/US-V4-036-KESS ... Swd~RZP9vy

something like ^ that . it doesnt have to be the latest version but no reloading of credits (i use jtag to reload my cheap one).

Check the Read if it is via OBD... KESS mostly only read partial and fill up the rest of section with YY, FF, 00 or 255 (take what you prefer ).
MS45 you can read via BDM with good results in fast time.
Some guys work on it like Cloudforce. Other guy got the RSA Key (terraphantm) and also other once have ews delete.

Could you post the values for:
$083F4;"conversion table for MAF value";"id_maf_tab";"16x16";""
$0798B;"NTC characteristic";"ip_tia__v_tia";"16x1";""

This will give us the values to use MS45 MAF with built in IAT on MS43.

I´m not shure if it works like that as MS43 calculates heat soak in the engine bay whereas MS45 doesn´t measure it due to the position of the sensor.

I'd say it's a good starting point though

Be careful, as the wiring is a little odd on that MAF.

what version of wols do u use?

Will this work for you?
Its MS45.0

Some another one is in ?
Found ISN location and also vin.
VIN only can only be changed via BDM, ISN it looks like it works via flash.
ISN and VIN is stored in eprom (29xxxx), not eeprom.
Also found some maps in MS45.0 which worked like rpm limiter, vmax limiters, ignition and fuel, maf, some vanos maps and full throttle maps, idle ...

We need a working disassembly From there on it will be rather easy.