TC reported train doors at car 3642 didnot opened. Staff(BGB) checked and confirmed train doors at car 3642 did not opened.Train stock changed at AMK SB. ~~~~~ TC reported train doors at car 3642 did not open.   Found 3642 A1 roller damaged replaced and function tested satis. Done by Zulf, Haikel Jerry, Rizman. 16/11/2023.