Thanks guys.
Looks like it was a small repair, no parts needed from bmw. They don't want to give me much more details then that.
The dealership was the one that helped get the info, they were not aware as well.
The car is well priced for the spec, there are non comps for more same year model, I'm getting a very good deal on the trade in.
I will take this into consideration, alot to think about.
Oh shame, they weren't aware, hey?
The dealers are always aware. WBC, Wheelie and dealers all showed up at home to buy my wife's car. All already knew that the car was in a crash and the accident history. You yourself can buy this information for R270-350 from Vin Docs even if you didn't have Coisman to check as well. I did this for a few cars already.
With BMW and Merc even higher chance that the dealer knew as they would have confirmed whether plan was active, confirmed the service history and most definitely asked about comments during this exercise as that is a huge selling point for these cars.
This is not to say a car was repaired off grid and thus has no repair history - of course that can happen and is the ONLY legitimate excuse for a dealer "not being aware".
If the car has comments loaded at BMW, as is the case with this car, it is 110% absolute HORSESHIT that the dealer was 'unaware'. Now you need to trust that it was a small repair with no parts needed

Source: Trust me bro
That being said, its up to you - at least you know to do extra checks (and try to dig yourself) around the details if you do want to explore further. I think we are also quick to think it was a total write off when it very well could have been a relatively small thing you're comfortable with (obviously price adjusted to take this into account). It's just that the behaviour of the dealer leads me think that this wasn't 'just a small thing'