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      08-25-2019, 04:12 PM   #2
ovekvam
Brigadier General
Norway
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Drives: F20 LCI 118i M-Sport B38
Join Date: Jun 2012
Location: Bryne, Norway

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A couple of friends of mine have experienced lack of power in their diesel cars (not same engine as yours), and in both cases it was a blocked particle filter in the exhaust system. One of them successfully took it off, opened it up again using a water hose, and reinstalled it. It was quite a lot of work, and a lot of particles came out. I have also heard of people drilling a hole through it.