Most BOSCH diesel parts, filters etc. are being made in India and BOSCH and India go back from the 60s. Same is the case with several MB engines and trannies, all made in India since the early 60s. Now MAN as well as HINO, Toyota, ND, Fuji Ox, as well as others have their manufacturing as well as R&D here in India. The point is, in India, due to diesel being heavily subsidised, it is more common to find diesel passenger vehicles as well as commercial ones. The quality of diesel in India varies greatly from being very good at certain pumps in the cities to atrocious, therefore, the filters, IP etc. all have to be designed to suit the conditions, also in commercial as well as fleet car apps, maintenance procedures are stretched to the max, so it is critical for things to do their job beyond call of duty.

I and my friends have had several OM 616 engines last for over 500,000 miles, even the abused, overloaded commercially OM 616 engined trucks manage to stretch their engine to 300,000Km and this using ancient MIL-C or CG/CD rated oil. BOSCH as well as Purolator filters made here are quite good and BOSCH actually designs them specifically for the local conditions.