413 ecu or 506 ecu

[BMW B3 2.5]

my friend wants to swap his 413 red label to a 506 ecu will taht hurt his M50B25 ( the car is a 325 E34 94 )

[adonwilson]

you'll need to chip it to run the m50 properly. The stock chip will be for an s50

[BMW B3 2.5]

so if he takes the 506 ecu with its OEM chip it wont work properly on his E36 ?

[adonwilson]

Correct. It might start and run, but won't run properly. TRM might be able to make a chip to run the m50 on the 506 dme if they don't stock one already

I say just get an s50 to run with that 506 :) He already has the pan, harness, and dme to swap it right over

[BMW B3 2.5]

if US spec S50 was available why not but not he isn't in the US
10x for your advise

[nrubenstein]

There is absolutely no difference between a 506 DME and a 413 red label, other than the chip installed in it.

Running the stock 506 chip on an M50 is just silly. If he has a bad DME and wants to swap chips, that will work fine,though.

[adonwilson]

I will check when I get home but I should have an m50b25 chip that I pulled out of a 413 red label

[BMW B3 2.5]

There is absolutely no difference between a 506 DME and a 413 red label, other than the chip installed in it.

Running the stock 506 chip on an M50 is just silly. If he has a bad DME and wants to swap chips, that will work fine,though.

so if he just plugs the 506 the car will run and it wont cause any problems ?

[adonwilson]

so if he just plugs the 506 the car will run and it wont cause any problems ?

He's saying it will work if you have the correct chip

[BMW B3 2.5]

so he installed this DME and he told me the car is working fine