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ms45.1

  1. Siemens MS45.1 Tuning Thread - XDFs inside

    Driveline, Engine & DME Tuning
    Hello everybody, MS4X developement group is proud to announce that MS45.1 now inside our scope. :) We want to open this thread for a MS45.1 related tuning exchange, because only in a larger group we will be able to understand the much complexer ECU compared to MS43. Our fellow board member...
  2. Emissions OBD readiness failed (all 5) 330i ZHP

    General E46 Forum
    Hi all, just purchased a 2004 330i ZHP with 198k miles. No check engine light, but when I went to get my emissions test I failed due to all 5 OBD flags they check are showing not ready. I bought the car, then immediately drove 500 miles, so I figured the drive cycle would be good even if there...
  3. OBD readiness failed (all 5) 330i ZHP

    Driveline, Engine & DME Tuning
    Hi all, just purchased a 2004 330i ZHP with 198k miles. No check engine light, but when I went to get my emissions test I failed due to all 5 OBD flags they check are showing not ready. I bought the car, then immediately drove 500 miles, so I figured the drive cycle would be good even if there...
  4. Any E46 MS45.1 DME + EWS Service (New!)

    Miscellaneous BMW and E46 Parts
    People with cars built before 03/03 have a MS43 DME which has been publicly cracked and can be swapped into a different car with no issues. People with cars after that date received the MS45.1 DME which has not been publicly cracked and cannot easily be swapped into any car. Usually when...
  5. FS:330 SAP (Secondary Air Pump)

    Engine & Performance
    Selling the SAP out of a 04 330ci. Should fit any E46 330/330ci 04-06. $100 OBO - Shipping available at buyers expense!
  6. Intake that won't set off SES (Service Engine Soon) light

    Driveline, Engine & DME Tuning
    I purchased a Conforti Shark Intake for my ZHP and regardless of what people say here, I noticed a significant gain in power. I had tried this intake on before I had a chip or headers and noticed nothing but after adding it back on with these other mods on the car it definitely helped. The...
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