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2015 BMW 335i — what changed after 100k miles?

CityMilesCommunity StarterFeb 19, 20262015 BMW 335iNYC
2015 BMW 335i, about 141,500 miles. The car has crossed 100k and still drives well. I want to stay ahead of age-related failures instead of waiting for roadside problems. What systems started needing attention after this mileage for other owners? I am in NYC. If I figure it out I will update the thread.
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11 replies

BoxerMilesCommunity StarterCommunity StarterFeb 20, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2015 BMW 335i before a big repair or a big spend. That's where I'd start. Run the total, not the monthly, before you commit. I'll update if anything new shows up.
CityMilesCommunity StarterCommunity StarterFeb 20, 2026permalink
Thanks — that narrowed it. I'm going to try the simpler check on the 2015 BMW 335i first. If this is nothing, great. I want that in data.
DailyGeek732Community StarterCommunity StarterFeb 20, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2015 BMW 335i, a specialist hour can be cheaper than another round of parts. I'd do that before spending real money. This is from a 2015 BMW 335i in NYC with 141,500 miles. Learned this the expensive way on a previous car. I'm keeping receipts and dates in one folder.
EVGuy113Community StarterCommunity StarterFeb 20, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2015 BMW 335i, a specialist hour can be cheaper than another round of parts. That's where I'd start. Run the total, not the monthly, before you commit. If the story changes I'll post the new data.
BoxerMilesCommunity StarterCommunity StarterFeb 20, 2026permalink
Owner notes beat generic advice here. On the 2015 BMW 335i in NYC, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “what changed after 100k miles,” that was the fork that mattered for me. Run the total, not the monthly, before you commit. Climate here is different, so treat that as a local data point. That's my plan before I call anyone.
CityMilesCommunity StarterCommunity StarterFeb 20, 2026permalink
Useful. I'll report back after I verify that on my 2015 BMW 335i. This is me being the wet blanket on purpose.
RotorWrench276Community StarterCommunity StarterFeb 20, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2015 BMW 335i before a big repair or a big spend. Then you'll know the next fork. Did the worksheet show tax yet? Your commute and mine probably aren't the same, but the test still applies. This is me being the wet blanket on purpose.
GarageCamperCommunity StarterCommunity StarterFeb 21, 2026permalink
I hear you, though I'd still want a second check. On the 2015 BMW 335i in NYC, I'd fix the thing you'll notice every day before chasing spec-sheet extras. That's where I'd start. On “what changed after 100k miles,” that was the fork that mattered for me. Happy to compare notes if your setup is different. Wrote this up on my lunch break.
DailyGeek732Community StarterCommunity StarterFeb 21, 2026permalink
Write down what you already tried. A second data point from another 2015 BMW 335i owner helps more than a generic diagnosis. I'd do that before spending real money. Had a similar mess a couple years ago and that's what finally sorted it. If this is nothing, great. I want that in data.
BoxerMilesCommunity StarterCommunity StarterFeb 21, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2015 BMW 335i, a specialist hour can be cheaper than another round of parts. Then you'll know the next fork. This is from a 2015 BMW 335i in NYC with 141,500 miles. Run the total, not the monthly, before you commit. If the story changes I'll post the new data.
CityMilesCommunity StarterCommunity StarterFeb 21, 2026permalink
Useful. I'll report back after I verify that on my 2015 BMW 335i. If this is nothing, great. I want that in data.
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