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Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 04-30-2010, 04:30 PM   #1
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Finding a spare DME

Hey Guys,

Might be a straight forward question, but if I wanted to get a "spare" DME, what do I need to do to make sure it'll work with my car? Build date is 12/2002, MS43. Just looking into something fun in the future.

Would I have to take it to a shop to have it aligned to the EWS?

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Old 04-30-2010, 04:57 PM   #2
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you can do two things...

1, you can find any used ms43 dme (get one for around 240), then get the corresponding ews that it was linked too (they sell pairs on ebay). all you have to do is swap out the dme and the ews at the same time and your good to go.

2, you can find any used ms43 dme, send it to ess to wipe the ews coding. cost about 250, i think. then all you need is a autologic or similar to recode the your current ews with the new dme.

i did the later... its way more convenient for me so i don't have to uninstall and reinstall the ews whenever i want to swap out the dme. the only bad part is the tamper dot on your cluster. if you can live with that like i can, your good to go!

Last edited by 332xi; 04-30-2010 at 05:04 PM.
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Old 05-01-2010, 12:26 PM   #3
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You can align MS43 DME with even carsoft 6.1. When I had to troubleshoot my DME during the TS2 install, ESS shipped me a "blank" one which I aligned with the EWS. Then when I got mine back, I re-aligned it again. Didn't take more than 10 seconds (and 2 days to find a PCMCIA serial card for laptop)
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Old 05-02-2010, 07:48 AM   #4
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I do suggest carsoft. As long as you have a matching EWS and key, you can align a DME from another car. This way, you still keep the key and EWS that goes with your car.
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