2 430 105 044 bosch number for copper washers. It's the as as for 2.4 d and td (M21)

Diesel alternator is the same Valeo one used on M51 diesel used in older BMW. Some parts for alternator fits from VW, for example voltage regulator, slip rings etc

Remove belts, start engine and listen fot the noise.
Probably auxhilary equipment.