Arkana Hybrid DPF and Exhaust Sensor Issue

I have the same Arkana model. Similar symptoms point to a faulty exhaust back pressure sensor. Have you checked the sensor readings with an OBD scanner to confirm?

I haven't checked the readings yet. Where is the exhaust back pressure sensor located, and is it a difficult task to replace it? Do you know the part number by any chance?

Accessing it can be tricky depending on your mechanical skill. A workshop might be better equipped to diagnose and replace it correctly to avoid further vehicle emissions problems.

Thank you for the insight. I'll take it to a workshop for diagnosis and replacement. The estimated repair cost is 245€.