So since the topic of date determining EWS or not,how do you find the build date? 413

[LINUS]

I was looking at Matt's thread of the chip he's hunting, and the whole EWS thing. So we all are starting from the same info, some (early)silver label 413's are EWS free, and some (late-post 1/95?) silver label 413's are EWS, right? And are all red label 413 DME's EWS free?
Then there's this issue of date?

EDIT: I changed the sentence above to the correct info so there is never any confusion. It was wrong previously. :EDIT

pm replied sent


for everyone's information,
12/94 m3 with 506 hardware does not come with EWS enabled. Anything after 1/95 has ewsII. meaning if you were to install 413 EWS on a E30 swap, it will not start because the ecu if requesting a signal from the EWS box which the E30 does not have.

That was in Matt's thread when he was hunting the chip.

So judging by the face sticker, where can you figure the year/month of build?
The best I can figure so far is to use the VIN sticker to decode year, but there has to be a date code. Best I can figure is the grouping just under "Made in Germany" on the left. 950213 - so Feb 13, 1995 maybe?

Anyone else want to post their box to compare against?

[Mike B.]

All silver labeled DME's are NOT EWS. I had a 413, not sure of the build date and it wasn't EWS.

I can have the guy I sold the engine to, check the DME to verify that the code you are looking at is actually the build date.

[Mike B.]

If you take the last 7 digits of the VIN on the DME (WBS...) and put it into RealOEM, the car that comes up is a 95 M3 with a build date of 2/95. This matches the code 950213, for a February 95 build date.

I would think that this DME has EWS based on the build date.

[LINUS]

If you take the last 7 digits of the VIN on the DME (WBS...) and put it into RealOEM, the car that comes up is a 95 M3 with a build date of 2/95. This matches the code 950213, for a February 95 build date.

I would think that this DME has EWS based on the build date.

Good idea on using realoem. Yeah, I was thinking it was a EWS box - I forget why, but when I got it from Joe, he might have said something about that. To be honest I hadn't gotten that far, so it was still something to work out.

So maybe we can all go by that little date code, since it seems to be that.

Just so I can get it right in my head - Some silver label are EWS, some not. But all red label are free of EWS, correct? And using this little code, if it proves out as a build date code - can tell you if you need a EWS defeat chip or not.


Anybody else care to add a shot of thier lid and see if that comes up as a correct date code on realoem. If so, this might be good info when you see a 413 to be able to determine EWS or not.

[Mike B.]

So maybe we can all go by that little date code, since it seems to be that.

Just so I can get it right in my head - Some silver label are EWS, some not. But all red label are free of EWS, correct? And using this little code, if it proves out as a build date code - can tell you if you need a EWS defeat chip or not.


Anybody else care to add a shot of thier lid and see if that comes up as a correct date code on realoem. If so, this might be good info when you see a 413 to be able to determine EWS or not.

My silver 413 did not have EWS, however it may have been a replacement DME as the VIN number was all zeros on my DME. I am checking with the guy that now owns the engine to see if the date code is actually a date code.

IIRC, build dates from 12/94 on, need chips to disable EWS.

Red DME's DO NOT have EWS.

Of course, if you can get the EWS box, transmit/receive box, key and switch, I can tell you how to wire it up so it works. :p I need to do this on my euro S50B32 swap as there are no chips for the Siemens euro DME's to disable EWS-II.

[dredder]

My silver 413 did not have EWS, however it may have been a replacement DME as the VIN number was all zeros on my DME. I am checking with the guy that now owns the engine to see if the date code is actually a date code.

IIRC, build dates from 12/94 on, need chips to disable EWS.

Red DME's DO NOT have EWS.

Of course, if you can get the EWS box, transmit/receive box, key and switch, I can tell you how to wire it up so it works. :p I need to do this on my euro S50B32 swap as there are no chips for the Siemens euro DME's to disable EWS-II.

let me clarify the 413 swap issues for you guys

94 -95 m3 came with 413 and 506 . 1/95 and up contains EWSII (requires keys to be coded with the dme)

Red label 413 DME from early 325 does not come with EWS2. EWS can still be enabled by using the OBC (on board computer E36 cars).

Silver label from 325 may contain ews2 but not always.


Heres the important for all you swappers to consider when buying a dme.
All dme 413-506 are interchangle. If you are using 413 DME(ews2 enable) on non ews car (e.g E30) you will be required to install a chip that has EWS delete. In addition, you will be required that your wiring harness come from non EWS2car.
You can use EWS2 wiring harness but you will be required to cut pin 66(need to confirm this) in the dme side of the wire harness.

You cannot install non EWS DME on EWS2 enable car since the vehicle is requesting a signal from EWS2 dme


Hope this helps. If anyone wants stock chip for S50-2, M50-2 with EWS disabled, i can be of service. If you want affordable performance chips i can also make upon request.







This is an EWS2 enable DME. IT has a manufactured date of 2/95

[matt]

You only need to cut that wire if its connected to the EWS module... ie still installed in an e36. Its the small green wire in the x20 connector.

[dredder]

You only need to cut that wire if its connected to the EWS module... ie still installed in an e36. Its the small green wire in the x20 connector.

+1

[Mike B.]

My silver 413 must be a replacement DME as the build date is 5/95 and it does not have EWS.

[BingM3]

My car has a silver DME 413 non-EWS, car build date was 10/94

[matt]

Even if you do have an EWS ECU, it's not a big deal. You just need a performance chip that will disable EWS, and matched to the motor you're running.

[LINUS]

Barry @ Active Autowerkes -


is wrong and I edited this post because it would only spread misinformation. I'm doing it to all the posts I made based on Barry's advice being correct, and that just wasn't the case.

[LINUS]

My silver 413 must be a replacement DME as the build date is 5/95 and it does not have EWS.

More of me basing an answer on Barry's wrongness.

[matt]

Bottom line from Barry was that you don't have to give EWS a second thought if you are swapping to an E30 with its OEM body harness. Since the EWS request is from a unit attached to the body harness, it's a complete non-issue for us E30 guys. No request = use of any box, 506, 413 of any date.

So the need for EWS defeat being burnt to a chip you want to run isn't needed at all. The only possible need is if you have an E36, and even then only if for whatever reason don't want to cut the wire mentioned already - pin 60 or something.

He doesn't have that right. EWS is in the ECU, also. If it doesn't sense the proper signal from the EWS module, it won't start whether you have the motor in an e30 or whatever, if you have the stock chip.

What he might have been saying to you was that since you have a non-EWS chip, you don't need to worry about it.

[matt]

So this is an example of why your car runs based on what I just posted. The request for EWS isn't there since your body harness isn't requesting it. If you had a E36 2/95 & later, then you would have to worry since the request originates in the body harness.

5/95 is after 2/95. His ECU has no EWS because it's an uncoded replacement from BMW. Just like your ECU has no EWS because you have a non-EWS AA chip.