From a search: P1162 may relate to the egr valve not working so it may need cleaning or replacing but first check any actuator hoses to it in case there is a split or damage or if electrically operated check the connector and wiring. This is likely to be the fault that brought up the anti pollution message (which just means there is a fault that could affect the exhaust emissions and does not necessarily refer to a dpf unless there was a fault with it) and the engine management light. P1351 may relate to the glow plugs but if your car is starting ok you can probably leave this for now. What makes you think your car does not have a dpf ? According to a sales brochure for 2010 all the C3 diesels have a dpf system.