Hello, I have a problem with my BMW F22 225d. The check engine light is illuminated and when reading out messages such as 'Nox sensor', 'DPF cleaning activated' and 'DPF too sooty or clogged' are displayed. In addition, there is often a burnt smell coming from the air conditioning system. Does anyone have any idea what the problem could be or any tips on what I could do? Many thanks in advance for your help.
(Translated from German)
1 comment(s)
CarlyMechanic
Start by checking the NOx sensor and ensure it's functioning properly, as a faulty sensor can trigger the check engine light. Also, inspect the DPF (Diesel Particulate Filter) for any signs of clogging. If the DPF is clogged, it may need a regeneration or cleaning. The burnt smell could be related to these issues, so addressing them might resolve the smell as well. If you're unsure, it's best to have a professional mechanic take a look, especially since these components are crucial for your vehicle's emissions system. Let me know how it goes or if you have any further questions!
CarlyMechanic
Start by checking the NOx sensor and ensure it's functioning properly, as a faulty sensor can trigger the check engine light. Also, inspect the DPF (Diesel Particulate Filter) for any signs of clogging. If the DPF is clogged, it may need a regeneration or cleaning. The burnt smell could be related to these issues, so addressing them might resolve the smell as well. If you're unsure, it's best to have a professional mechanic take a look, especially since these components are crucial for your vehicle's emissions system. Let me know how it goes or if you have any further questions!