During a DPF regeneration the DPF itself and the exhaust get extremely hot, this can result in some unusual smells, especially if the car is new. In order to generate the heat required to burn off the stored soot inside the DPF the car essentially over-fuels and increase the engine RPM at idle, this can cause a temporary change in the driving You cannot “force” regenerate the dpf with a Carly or other device, you can only send a regeneration “request”. If there is a fault preventing regeneration, it still won’t. Also, our 335d was showing all 6 glow plugs and controller as failed but the dpf was still regenerating normally, we ran it like this for 4 months through summer Yes , also BMWs do a DPF regen cycle. The interval depends on a few factors like exhaust gas temperature and differential pressure behind the DPF. Time and distance has not the main reason as the shorter the trips are, the cooler the engine will be, resulting in low EGT and soot buildup in the DPF. The thermostat: When the thermostat breaks, the engine cannot reach the optimal temperature needed for the activation of DPF regeneration. The lambda sensor is part of the emissions system. Its damage directly affects the results of regeneration. DPF sensors: The diesel particulate filter consists of various sensors that track its performance.
The GPF is a particularly ingenious device for improving the carbon footprint of vehicles. Largely inspired by the particulate filter in diesel cars, it takes the recipe from it and adapts it to petrol cars. The device works beautifully and is reliable, durable and efficient. Its extended life makes it a particularly well thought-out and
When the diesel particulate filter (DPF) reaches a pre-determined particulate matter (PM) fill level of around 40 per cent, the ECU activates a regeneration process which can inject fuel up to eight times more fuel per stroke to produce temperatures in excess of 550⁰C dry or 450⁰C with the passive system to incinerate the PM.
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    • how does bmw dpf regeneration work