I'm looking at a 2019 plate focus with an Ecoboost engine but have been made aware of the problems with these engines and the wet belt. I'm likely to have the vehicle in another 5 years and changing the wet belt looks expensive. My independant garage looked it up and think that it has a timing chain, not a wet belt. Do you know if some models have been made without the wet belt or is the wet belt separate to the timing chain?