The fuel economy, low cost tax and relative cheapness of the ford fusion 1.4 diesel has my interest. I could afford an early one at nearly ten years old and 100k miles on the clock.

I am wary of the repair cost of the 10+year/100+k miles old technology(engine, airbags, abs, electrics, this and that).

What kind of big bills might be expected at 100k+ miles for the Fusion diesel?

Broadly speaking would an older Fusion diesel be cheap to run?