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fabianlange2

Mini Paceman Diesel DPF Issue

Alright, I'm pulling my hair out here. My 2015 Mini Paceman diesel is acting up. The warning light in the speedometer lit up, and the engine feels like it's lost a lot of power. I've also noticed some smoke when I accelerate and a strong exhaust smell. I scanned the error codes, and it's showing "Diesel particulate filter exhaust pressure too low". From what I've read, it could be the exhaust back pressure sensor. Has anyone else had this issue or have any tips on how to troubleshoot DPF issues?

Summary of the thread

A 2015 Mini Paceman diesel is experiencing issues with a warning light, reduced engine power, smoke during acceleration, and a strong exhaust smell. The error code indicates "Diesel particulate filter exhaust pressure too low," suggesting a potential problem with the exhaust back pressure sensor. It is recommended to check and possibly replace the DPF pressure sensor, as it is a common issue affecting the emission control system. Seeking professional assistance for diagnosis and replacement is advised to avoid further complications.

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4 comment(s)

juergensky36

Whoa, that sounds eerily familiar! I had similar DPF issues with my Mini, same symptoms and everything: warning light, sluggish engine, and that nasty exhaust smell. Have you checked the DPF pressure sensor? It might be faulty. It’s a common issue in these diesel engines and it messes up the emission control system. When was the last time you did a DPF regeneration? Maybe try forcing one through the car's computer?

fabianlange2 (community.author)

Thanks for the quick reply! So, when you say DPF pressure sensor, is that the same as the exhaust back pressure sensor? And how difficult is it to replace? I'm fairly handy, but I don't want to mess anything up with the diesel engine management system. I haven't tried forcing a DPF regeneration yet; I wasn't sure if it was safe with the warning light on.

juergensky36

Yep, exhaust back pressure sensor and DPF pressure sensor are the same thing. Honestly, I wouldn't mess with it myself if I were you. It can be a real pain to get to, and you could easily damage something else in the process. Plus, you might need to recalibrate the new sensor with a diagnostic tool. I'd recommend taking it to a workshop. They'll be able to diagnose it properly and replace the sensor without causing any further problems. Better safe than sorry when it comes to the emission control system.

fabianlange2 (community.author)

Just got my Mini Paceman back. It was indeed the exhaust back pressure sensor. The total bill came to 245€, including the sensor and labor. The car runs like new now. Thanks a lot for your help, your experience really pointed me in the right direction!

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MINI

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PACEMAN