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BMW - 328d Regen Concern

BMW Diesel Owners / Enthusiasts - Bimmerfest - BMW Forums - www.bimmerfest.com
I got my CPO 2014 328dx sedan December 31st, 2016 with 43,500 miles on it. I'm now at nearly 70,000 miles and I have to say I've never really noticed a regen cycle. My Previous Passat TDI would regen and it was noticeable. The engine fan would come on and idle speed would be slightly higher.

During the week I do a lot of highway driving to work and back, round trip is about 100 miles. I'm wondering if the car regens primarily when I'm on the highway or driving around. My Passat would always do it when I neared home or work, and I'd notice it when I parked because of the fan and higher idle.

I've read about bad thermostats being a possible issue with regens not occurring. It doesn't seem to have an unreasonably long warm up, and there aren't any other issues or check engine lights.

Is this normal not to really recognize a regen in the N47 engine? Do they primarily happen during longer drives? I'm just wondering if I should get the thermostat checked out. I don't have icarly or any other ECU reading device installed.

Thanks for any suggestions.
Date: Oct 11, 2017    Labels: BMW


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