Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 BMW 320i (E46) (CANADA) L6-2.2L M54FACTORY OEM SERVICE PROCEDURE
Programming Procedures For "Exchange EPROM"
Programming Procedures for "Exchange EPROM"
Select this to program a replacement control module EPROM.
Prior to any type of programming, make sure the DME fault memory is cleared and vehicle battery is connected to a BMW battery charger with stabilized 12.5V!
1. From the Programming selection menu select "3 Exchange EPROM" and press continue.
2. Press "1 Determine EPROM" and press the enter button.
3. Press Y to confirm old EPROM is still in car.
4. Turn on ignition and press the "Yes" button to start the automatic determination.
5. If chassis numbers are correct press the "Yes" button.
If they are different press the "No" button and enter the VIN manually, then press the "Yes" button.
6. The DIS/MoDiC provides the replacement EPROM part numbers in the display.
7. Obtain the EPROM and follow Service Bulletin covering specific details pertaining to the EPROM replacement procedure.
The vehicle data will remain stored in the MoDiC as long as it is not used for any other purpose. Press the up arrow to return to the selection menu.
8. Select "Program EPROM" and press the enter button.
9. Enter the last 7 digits of the VIN and press the "Yes" button.
10. Press the "Yes" button to start automatic programming.
The screen will indicate when the programming is complete.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.