Question: Delayed engagement into Drive when cold
On cold mornings, shifting from Park to Drive takes a second or two before the car actually engages. Once warm it's instant and shifts fine. Fluid level/condit…
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2022 BMW X3 — metallic rattle for a few seconds after cold start
This started as a small annoyance and I finally decided to track it down. There is a short metallic rattle after the first cold start of the day, then it disap…
2021 BMW X5 — 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. What measurements sho…
2020 BMW M2 — single-cylinder misfire comes and goes
This started as a small annoyance and I finally decided to track it down. 2020 BMW M2 Competition, about 120,500 miles. A cylinder-specific misfire code appear…
2021 BMW X5 — metallic rattle for a few seconds after cold start
2021 BMW X5 xDrive40i, about 75,500 miles. There is a short metallic rattle after the first cold start of the day, then it disappears once the engine settles.…
2023 BMW M340i — surface rust underneath a winter daily
2023 BMW M340i xDrive, about 40,500 miles. There is early surface rust on brackets, fasteners and seams underneath, but nothing structural. For a salt-belt car…
2020 BMW M2 — dedicated winter tires or modern all-weather tires? — trying to narrow this down
2020 BMW M2 Competition, about 51,500 miles. Most roads are plowed quickly, but there are cold wet days, slush and a handful of serious storms. For a daily dri…
New model reveal: what matters beyond the headline specs?
2024 BMW i4 eDrive40, about 151,000 miles. A new model just dropped and the headline numbers look good, but I'm more interested in curb weight, wheel/tire size…
2018 BMW 340i — buzzing noise only at one engine RPM — trying to narrow this down
There is a light buzz from the dash at one narrow RPM range. It disappears above and below that speed. Any good method for locating trim resonance without rand…
2024 BMW i4 eDrive40 — anyone else: Shudder at light throttle around 40 mph
I get a light shudder at steady throttle around 35–45 mph. If I accelerate harder or lift off, it goes away. Trying to figure out whether this sounds more like…
2025 BMW M3 — how much room below MSRP when inventory is normal? — NYC / diagnosis
2025 BMW M3 Competition, about 12,500 miles. I am shopping a new car with several similar units sitting nearby. Dealer started at MSRP plus fees. What is the b…
A/C is cold while driving, warm at stoplights
A/C gets properly cold on the highway but becomes noticeably warmer at long lights. It cools down again almost immediately once the car is moving. Could this s…
2018 BMW 340i — single clunk over small sharp bumps
There is one front-end clunk over pothole edges and driveway lips, but larger smooth bumps do not reproduce it. How would you isolate end links, strut mounts,…
2023 BMW M340i — open carrier or enclosed for a normal enthusiast car?
2023 BMW M340i xDrive, about 52,500 miles. The car is valuable to me but not exotic.
2022 BMW X3 M40i — anyone else: Alignment still pulls after tires were rotated
Car started pulling slightly right after a tire rotation. Alignment printout is technically in spec. Is it worth cross-rotating tires to check radial pull befo…
2015 BMW 335i — how much reconditioning is worth doing before listing?
Car needs tires soon and has a few cosmetic issues. I am not sure whether spending money first will return more in the sale price. What repairs or detailing us…
2024 BMW i4 — clutch engagement changed after a long traffic commute
After a hot stop-and-go commute the clutch engagement point felt different, but it returned to normal later. No slipping at full throttle. What would you inspe…
Question: Should I service 'lifetime' transmission fluid?
2022 BMW X3 M40i, about 14,500 miles. Manual says the transmission fluid is lifetime under normal use, but the car is approaching 80k miles and I plan to keep…
2020 BMW M2 — single clunk over small sharp bumps
2020 BMW M2 Competition, about 132,500 miles. There is one front-end clunk over pothole edges and driveway lips, but larger smooth bumps do not reproduce it. H…
Question: One-year ownership: things reviews never mentioned
2021 BMW X5 xDrive40i, about 4,800 miles. After a year, the things I care about aren't horsepower or 0–60 anymore. Seat comfort, camera behavior, storage, ratt…