I had the dealer perform the 7500 mile interval oil, fuel filter, air filters change today. I initially asked them to perform the 100k mile service even though it's only at 75k but apparently I'm too caught up on maintenance and didn't realize it.
The fuel filter replacement makes it run much smoother even on acceleration. I'm quite pleased with it. Funny how things can change so slowly over time that it's not detectable until a part is renewed.
I have it up for sale and taking offers but hmmmm...I love this truck!
I have my new 535i xDrive Msport on order for Euro delivery in September but I'm not rushing to get rid of my X.
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