Zitat von Vanilla320i
Thank you XenonIS and Vanilla for your replies. Solves this mistery for most parts.
My insurance demands a class III alarm system, but the governing body who gives out the certificates, has a list of what classes should confirm too. One of the things of class III is that it should have interior detection.
So there I have a problem, unless, and it looks like that is the case, the original BMW alarm didn't have that option on the cabrio, but the BMW dealer where I had it checked, gave me a Class III certificate.
Also when I contacted BMW Netherlands, they say it's a classs III alarm. So maybe some factory alarms are exceptions to the rules.
What made things more unclear was someones else I know, which has a 328i cabriolet imported from Germany, with also the #302 factory alarm and he has interior detection.
Which means it's very likely be added when the car was imported and is not an original BMW option. (Like I said before, in the E36 ETK is no listing of a radar detection module, but is for the E46, which is a shame really). I don't want these ugly ultrasonic "microphones" on the top of my a-pillars.
It now seems that in Germany interior detection is (or was at that time) not mandatory, but is over here.
I might see if a radar module from an e46 is retrofittable for the E36, as I like to keep things OEM (as can be seen from my journal).