Question about different numbers on SRS / Airbag sensor module
Unfortunately there comes a time when you need to replace your SRS sensor module under the seat in your W203. Now I have to replace it too because I am unable to reset the SRS airbag failure in the computer.

I found a lot of modules for sale on the Internet but I am not sure which ones will be fitted to my car. I have already removed my old module and checked the numbers on it:
0 285 001 3713
001 820 97 26 [00]
Q4
Almost every number on my module is good but my question would be related to the last one. What is the Q4?
What I found on the Internet it has Q6 sign. Can it be a problem?
For your reference I attached a picture of what I found and I highlighted with red rectangle what is wrong.

Thanks for your help in advance,

Geri


