This is not new and seems to have started with the Ford 1.8TDCI engine as a timing belt, but the Peugeot predates the ford in using a wet belt but to drive the fuel pump. Ford and PSA have collaborated to create a bunch of shared engines in the past so the connection is quite natural.4. Engine block problems. The block is made of aluminum which is OK. But it experiences a lot of pressure because getting 137 horsepower from 1.2 liters of displacement is not a joke. So, the wear of the cylinder block, pistons, piston rings, rod bearings, crank, and camshafts will be very intensive.
The origin of this problem is linked to the rapid degradation of the oil, mainly on vehicles used little (less than 15,000 km) and mostly for urban use. In this context of use, the 1.2 PureTech engine is subject to oil dilution, i.e. fine droplets of unburned fuel flow along the cylinder wall and mix in the lower crankcase.
OzS0HW.