I think this will be a 1.6 if it has the peugeot engine with dpf.I have also had the same problem resetting the dpf system after a refill.Kts and Snap on will not do it.In the end had to get a friend with Ids to do it.(Even tried Kts under Peugeot,still no go).Also does tank have correct fill,should take around 2.5 litres.hth