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First, just right after buying this car with about 85k miles I have changed timing chain, and oil. After that, i was getting error 130308 (exhaust vanos, position not reached) every time when driving in comfort or eco mode in low RPM. When i was driving in sport, there was no errors.
First troubleshooting was to swap vanos solenoids, but after that error was still on exhaust side. So i went to local bmw service, and they suspected exhaust vanos units due to some visible wear on it. So it was a bit of blind quess, but i followed their advised and replaced both units - so far error is not coming back.
Another thing is now i am getting some strange rattling while acceleration, but it seems to be not connected....
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