407 AC blower stopped working - BSM L02 Change

[b3s1]

Peugeot 407 owner here, Diesel 2005. It has been some months that AC stopped blowing at all (neither hot or cold air). At first it started blowing from time to time after some driving time but now it looks like start at all. When you turn it on, you can hear a click and that something starts working but after some second it stops and the blower does not start.

Had it checked and the guy did some tests with the BSM under the bonnet (fusebox) near the battery and I don't know what he did but asked me to check if the blower was running and actully it was working.
He told that the BSM was faulty and had to be changed and the AC blower would start working fine. Model is BSM-L02-00 and the problem is that I have asked all the used part shops and junkyards about it but I can't seem to find it anywhere. They have plenty of BSM-L01-00 but not the BSM-L02-00 fitted on my 407.

Is there any compatibility of the BSM-L01-00 with the BSM-L02-00 or any other model?
I've also checked on ebay and I could find some but they also have different numbers besided sharing the same model BSM-L02-00?
Is there anything else that I should have in mind when buying a used BSM besides the model?

Would really appreciate your help it's around 40 degrees celcius where I live and with no AC is pretty challenging and also I can't remove moist from windshield during winter since you know, it does't blow at all

[b3s1]

From what I have dound around and based on the one fitted in my car I don't quite understand the differences.

These are the ones from the part fitted in my 407.

S118983002 J

BSM L02-00

9656086180

0 / 09905 / 149098730 / 05062

The first 3 define the part from what I have understood but the ending letter in this one S118983002 J is different or not everything is matching. I'm confused since the part is not very cheap and I don't whant to by a wrong one.