Hi there we recently bought a 308 GT Line on a 67 plate.it started coming up with ping service then oilpressure low stop engine then engine fault stop engine. It also when into limp mode. But just like a Diesel engine if I switch off and started again it was fine . So we took it to the garage we bought it from a vw dealer . They say they don’t know why . They contacted a Peugeot garage who say can’t look at till end December. Anyone got ideas what it could be ?