Originally Posted by noodle654

I managed to catch a regen while driving today. Got some data from BMWhat. I have a question about regenerations in this car. I see a lot of people saying that regeneration won't occur if the car doesn't get to 75C...the whole active vs. passive. My engine coolant rarely gets above 71C...but I still get pretty consistent regens according to the data. Today it was 25F (-4C) outside.

My car average regeneration is 444KM or 275 miles. Today it occurred at 400,000 meters or 250 miles. The car was definitely not running very hard and was only running for 30 minutes around town errands (30-50mph roads, not much stopping). But I did see the temps go up, car mpg dropped considerably, and soot level (in grams) started to drop as regeneration kicked in.

Soot mass was 3.74 grams when regeneration started. Engine temp was 71C, and went up and stayed at 76C for about 15 minutes of 30-55mph driving. Once regeneration was complete temp dropped to 71C.

Maybe my car is an anomaly (knock on wood)? Anyone else not having regen problems with high mileage X5s?