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      11-20-2011, 01:52 AM   #1
e30polak
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Z4 M-Coupe Siemens MSS70 DME

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So I bought this blindly thinking it was going to be the same DME as the MSS54 DME that the e46 m3 uses. I needed a spare DME for the s54 I'm swapping into my e30 m3. Turns out no one has hacked this DME yet...

I know that I'm a noob on this forum, with no real posts, but I can assure you that this is not a scam. I'm an active member on r3vlimited.com and bimmerforums under the same name if you're concerned. Just trying to get my money back.

The Car this came from was rolled on the track and it had no issues. s54 was sold separately, and now i see why the buyer didn't need/want the DME...

If you need a DME for your car, this is is a significant deal compared to what the dealer/a parts yard will charge you.

$500 FIRM + SHIPPING AND PAYPAL FEES



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      11-20-2011, 02:54 AM   #2
mfanatic325
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Very interesting...
I always thought that the dash cluster and the DME would have to go along with the motor for these cars
I could understanding swapping motor-only among E46 M3s, but between M3s and Z4Ms, and even some Z3Ms, I would've thought it wouldn't be as much plug & play. Interesting indeed!
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      11-20-2011, 11:26 PM   #3
e30polak
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Apparently it isn't that easy. I don't see why BMW changed the DME, when it's for the same exact engine...
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      11-21-2011, 01:20 AM   #4
mfanatic325
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Quote:
Originally Posted by e30polak View Post
Apparently it isn't that easy. I don't see why BMW changed the DME, when it's for the same exact engine...
yeah...but I'm personally not complaining, because the MS S70 is supposedly much more capable
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      11-27-2011, 08:37 PM   #5
iPhoneEngineer
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Quote:
Originally Posted by e30polak View Post
Apparently it isn't that easy. I don't see why BMW changed the DME, when it's for the same exact engine...
As mfanatic mentioned, this is a much better engine computer. It's easy to see why--the original was in development around year 2000, and this one probably 2005. Quite a quantum leap.

Tunes have been able to modify this DME pretty extensively--see all the software tunes available for the M Coupe, including ESS which claims to replace the entire operating system when you buy one of their supercharger kits (I wasn't able to do the software flash myself, even with one of their Direct Flash units, because of the extent of the modification). I'm surprised no one has used it in an engine swap yet...
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      11-27-2011, 09:00 PM   #6
mfanatic325
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Anyone know if it's possible to swap two different ECUs back and forth between one car? Will the system go haywire?
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