The majority of failures seem to be on the N47 2.0ltr 177 bhp diesel engine but I think technically the 1.8 is the same engine just mapped to a lower power 143 bhp, petrol engines were also affected around the same time
The popular belief is that the BMW longlife oil changes have a large part to play in the failures
Check the service history for the intervals of oil changes, ideally the oil & filter will have been changed every 12 months or 10 to 12'000 miles whichever comes first , but this is very unlikely to have happened though
Also what is the price / spec of the car, does the mileage you do justify running a diesel with a DPF, there are a lot of very expensive things that could need replacing on a 10 year old diesel and the repair bills on a car that initially cost the best part of 30K are always pro rata
A new clutch/flywheel, turbo, DPF & EGR could all rear their heads in the next few years and cost more to replace than the car cost
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