2019 Focus 1.5T - which engine?

[Elroy Blue]

Looking at a 2019 Focus 1.5T 180bhp St-Line. (Same as the pic) for my wife.
However I'm a bit confused exactly which engine it has. Autotrader say it has a 4 cylinder engine, but Google suggests it may be a 3 cylinder.
Online suggests the four cylinders have coolant intrusion on engines built upto June 2019.
I think this age were chains cam but had an oil pump wet belt.
Have no idea whether to avoid or buy. Is the 180bhp one to avoid.

[stevemcs]

The previous Focus was a 4 cylinder, the current Focus is a 3 cylinder. The 1.5 diesel is 4 cylinder

[Simon_GH]

I’ve got the 180 version. It’s essentially the dragon 3 cylinder from the Fiesta ST. They are deemed reliable by the trade. I’ve needed to change a coil pack which was under £50 from Ford and 5 mins labour while drinking a cup of tea. I really like it.