I checked the NHTSA.gov site and entered my VIN...found no "current" or "not performed" recalls on it. Then I tried looking for SIB's, by googling "BMW SIB 321", and "BMW SIB 341" (assuming that either 321 or 341 is the covered-up number), and each time, a single SIB (for another model) DID show up, but none for the E53.

I can't find any direct list of SIB's that may have been done by the original owner (he had it 'til 2018). I'm the third, after my neighbor bought and restored it for me (as a swap for my drag car).

Is there another way to trace this, or do I need to purchase a VIN tracing report (Carfax or Vin-decoders, among others)?