Questions - Diesel engine and transmission / gearbox reliability circa 2014-2019 -BMW - Mercedes - Audi ( on small hatchback or coupe models)

[Cristian]

I thought the B48 engines were 2015 onwards (so you would want to pick up a 2016 or later)? id have to check, if its 2014, iv seen a few of these but i thought 2014 still had the N47 engine which is what i currently have now.

Also make sure you distinguish between B48 petrol and B47 diesel.
I think timing chains are still a question mark at higher miles (latest part numbers are the same for the chain and slides as the N47) but it's a high mileage / low maintenance problem and I haven't read too much into it for the B series engines.