Mazda: Hi - The DPF warning light has come on on my 56 plate Hi - The DPF warning light has come on on my 56 plate Mazda 6 (143 TD Sport). The car is usually used just for driving 10 miles to work and back per day. I reckon I'd be spending about the same on fuel if I had kept my 08 Fiesta 1.6D and bought half a gallon of diesel every week and poured it down the toilet. Road tax £20 p.a. DPF tax about £150 p.a. CX-3 Sport Nav 1.5D Manual 2WD Soul Red 2017. anchorman. Glos UK. May 10, 2017. #1. Morning all, Just picked up my lads 2010 Mazda 6 to fit a tow bar and the DPF warning light is flashing. I've had a quick look on the inter web and it appears that it could be high oil level, service reset or needing a regen. I know it's had a few decent motorway runs over the past week (100 miles +) so regen might 80k miles 2007 Cooper D R56 PSA engine. Owned and regularly serviced from new with no issues. DPF warning light just came on and stays on. iCarsoft plug in diagnosis showed glow plug/power supply/relay fault. 3 of 4 GP’s had failed! Replaced all 4 plugs. Fault cleared and rescan shows now no DPF fault. In this video I go through the step by step process of diagnosing and fixing the warning lights on in a 2017 Mazda BT50 AKA Ford Ranger 2.2 Diesel. Fault cod If the vehicle is driven normally whilst the light is on, PM will increase further and the warning light should start to flash. At this point, engine performance should be automatically decreased to protect the DPF, until the car is taken to a Mazda authorized repairer. Perhaps you have a faulty sensor, or need a new DPF. Julian. Wife has a 2012 Mazda 3 diesel (2.2l, model right before the skyactiv-D was released) and a blinking DPF light actually has nothing to do with the dpf. It actually indicates that the service reminder/ mileage counter hasn't been reset in the ECU to let the ECU know that the oil change has been completed. 1. Switch the ignition off. 2. Switch the ignition on with the selector pressed (they show the dash light/trip meter selector stalk as the one to press), and press and hold the selector for about 5 seconds until the master warning light (triangle!) flashes for several seconds. FQxqgG8.