Alternator for all Smart 451 models same?

Hello people, I would like to know whether the alternator/starter(-generater) is the same for all Smart 451 models. So whether the holes and plugs are in the same place. Whether gasoline or diesel. Background of the question is this: A Smart 451 Bj 2009 ,MHD ,61 Ps probably had problems with the LiMa/starter. Disse was replaced by a normal LiMa (no starter generator). So start/stop is out of function and is not desired. Now the alternator is no longer loading the battery and the car remains lying. The usual cross strokes in the Tacho etc. I found some Lima from 60-70€ new over Ebay. Apart from the voltage / current strength I wonder if all the builders are? Then I would order any, corresponding to the electrical power, order and install it. Wave of the LiMa is not fixed. The car had started to squeat again. On suspicion was replaced by a workshop belt and belt spanner. Quiets still. Workshop should start the light engine but start some more while the LiMa has to start.