2015 BMW 335i — service lifetime transmission fluid or leave it alone?
The manual treats the fluid as lifetime under normal conditions, but the vehicle is getting older and I plan to keep it. What are owners doing in practice, and…
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2021 BMW X5 — fuel trims are positive at idle and improve with RPM
2021 BMW X5 xDrive40i, about 63,000 miles. Long-term fuel trims are much more positive at idle than at 2,500 RPM. No obvious misfire. Does that pattern still m…
2022 BMW X3 — wireless CarPlay drops at the same intersection — anyone dealt with this recently?
Wireless CarPlay is reliable almost everywhere but disconnects at the same intersection on my commute. Does consistent location point strongly to RF interferen…
2022 BMW X3 — windshield replaced — does camera calibration matter?
A new windshield is installed and there is no dash warning, but the shop recommends camera calibration. If the manufacturer procedure calls for it, would you d…
2018 BMW 340i — cheap project has enough margin to fix and resell?
I found a running car with cosmetic damage and deferred maintenance at a low price. Before treating it as a flip, how do you budget hidden repairs, title/regis…
2023 BMW M340i — 50,000-mile ownership report: what actually broke?
This started as a small annoyance and I finally decided to track it down. 2023 BMW M340i xDrive, about 57,500 miles. I just crossed 50k miles and want to log m…
2025 BMW M3 — should I tell the dealer I am paying cash up front?
2025 BMW M3 Competition, about 21,500 miles. I do not need financing, but I keep hearing conflicting advice about when to mention that. I mostly want a clean t…
2023 BMW M340i — pPI found $1,800 of upcoming work
Inspection found several real maintenance items but nothing catastrophic. I still like the car. Do you treat the shop estimate as a dollar-for-dollar negotiati…
2023 BMW M340i — what changed after 100k 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 nee…
50k-mile ownership check-in
2025 BMW M3 Competition xDrive, about 78,000 miles. Crossed 50k miles, so I figured I'd post what has actually broken, what maintenance cost, tire life, fuel e…
WrenchGarageCommunity StarterApr 1, 20262025 BMW M3 Competition xDrivePennsylvania10 replies0 helpful
2023 BMW M340i xDrive — cPO luxury SUV or brand-new mainstream SUV?
Budget works for either a lightly used luxury SUV or a new mainstream model with a full warranty. I'm more worried about three-to-five-year ownership cost and…
Anyone else: High transmission temperature after several hard laps
After several laps the transmission temp rises enough that shifting behavior changes. Car cools down and works normally again. Looking for data points on cooli…
Fun daily that still works for one-car ownership
2025 BMW M3 Competition xDrive, about 1,200 miles. I want something I enjoy on back roads but still need to commute, carry luggage and survive bad weather. Try…
PistonRider44Community StarterMar 28, 20262025 BMW M3 Competition xDriveNorth Jersey14 replies0 helpful
2024 BMW i4 — new tires are much louder than the old set
Same size and pressure, but the new tires create noticeably more highway hum. Is this usually tread pattern/compound, or should I verify balance and alignment…
2024 BMW i4 — going one inch smaller for winter wheels
I want smaller winter wheels for more sidewall. Overall tire diameter can stay close, but I am worried about caliper and spoke clearance.
2021 BMW X5 — buying a car 1,200 miles away without seeing it
2021 BMW X5 xDrive40i, about 77,500 miles. A hard-to-find spec is several states away. Dealer has provided video and history, but I have not seen it in person.…
2025 BMW M3 Competition xDrive — tune transformed the car, but what should I log?
2025 BMW M3 Competition xDrive, about 118,000 miles. Running a conservative tune and the car feels great. I don't want to judge reliability by seat-of-the-pant…
PixelTraveler15Community StarterMar 23, 20262025 BMW M3 Competition xDriveNew Jersey1 reply0 helpful
2020 BMW M2 — oil level drops between services with no puddle
I started measuring the oil level every few hundred miles and it is definitely falling between changes. There is no obvious puddle and I do not notice smoke. H…
2023 BMW M340i — how much does an old accident hurt resale?
2023 BMW M340i xDrive, about 42,000 miles. Car was repaired well after a moderate accident and drives straight.
2023 BMW M340i — going one inch smaller for winter wheels
2023 BMW M340i xDrive, about 69,000 miles. I want smaller winter wheels for more sidewall. Overall tire diameter can stay close, but I am worried about caliper…