Can you give more specs of the vehicle. If the unit is from same type vehicle there may not be any need for coding. Have you checked it with diagnostics now after installing the new parts?

 

same parts as written above,. its for a 520i e39 2001 model the newer part is from the 2002 to 2003 serie.,.

but they are 100% compatible but need to recode somehow

 

If it's from another E39 there should be no need to code anything. The only variable should be rear side airbags which were an optional extra. So like said are there any codes with diagnostics with the new parts installed?

 

Its from another e39 a newer one from 2002-2003

 

When I did this I needed to recode. But I am not shure where my mrsz4 came from...

 

So did you just code airbag module with NCS? Some manual FSW_PSW changes or did you first change ZCS to simulate newer model?

 

I just found Youtube show the sensor location.

Now, still looking forward to the answer of NCSExpert.

 

Honestly, I have never encountered mrsz3 to mrsz4 errors, can you tell in more detail where you found these errors

 

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