2015 BMW 335i — fuel trims are positive at idle and improve with RPM
2015 BMW 335i, about 147,500 miles. Long-term fuel trims are much more positive at idle than at 2,500 RPM. No obvious misfire. Does that pattern still make an…
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2023 BMW M340i — buying a car 1,200 miles away without seeing it
2023 BMW M340i xDrive, about 25,500 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 — anyone else: First HPDE — what actually needs to be changed?
Doing my first beginner track day in an otherwise stock street car. I'm not trying to chase lap times. Beyond fresh fluid, pad thickness, tires and torque chec…
2024 BMW i4 eDrive40 — new model reveal: what matters beyond the headline specs?
A new model just dropped and the headline numbers look good, but I'm more interested in curb weight, wheel/tire sizes, real rear-seat room, charging/fueling, r…
2022 BMW X3 — driver seat clicks during left-right transitions
I can feel a small click through the seat base in corners. Mounting bolts appear tight and power functions work. How do you isolate rail play versus the frame…
Question: First HPDE — what actually needs to be changed?
Doing my first beginner track day in an otherwise stock street car. I'm not trying to chase lap times. Beyond fresh fluid, pad thickness, tires and torque chec…
2020 BMW M2 — dedicated winter tires or modern all-weather tires?
2020 BMW M2 Competition, about 70,000 miles. Most roads are plowed quickly, but there are cold wet days, slush and a handful of serious storms. For a daily dri…
2024 BMW i4 — should I tell the dealer I am paying cash up front? — anyone dealt with this recently?
2024 BMW i4 eDrive40, 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 tran…
2025 BMW M3 — single-cylinder misfire comes and goes
A cylinder-specific misfire code appeared after one rough start, then cleared and the engine feels normal. Plugs are not very old. Would you swap coils, inspec…
2024 BMW i4 — car pulls right even though alignment is green
2024 BMW i4 eDrive40, about 42,000 miles. Alignment printout is within spec, but the car still wants to drift right on a flat road. Tire pressures match. Would…
2015 BMW 335i — buyer sends a vehicle-history website I have never heard of
2015 BMW 335i, about 120,000 miles. Someone interested in my car insists I buy a report from a specific unfamiliar website before they will meet.
2025 BMW M3 — rough idle disappears just above idle speed
2025 BMW M3 Competition, about 10,500 miles. Idle has a slight shake once fully warm, but 100–200 RPM above idle it smooths out. No major loss of power. Would…
2022 BMW X3 M40i — would you pay more for documentation than lower mileage?
Comparing two older enthusiast cars: one has lower mileage but thin history, the other has higher mileage with years of invoices and owner notes. Assuming both…
2025 BMW M3 — buying a car 1,200 miles away without seeing it
2025 BMW M3 Competition, about 11,000 miles. A hard-to-find spec is several states away. Dealer has provided video and history, but I have not seen it in perso…
Small oil leak or just old residue?
There is a damp area around the lower side of the engine but nothing reaches the ground overnight. I cleaned it once and it slowly came back. What's the best w…
2023 BMW M340i xDrive — would you pay more for documentation than lower mileage?
2023 BMW M340i xDrive, about 22,000 miles. Comparing two older enthusiast cars: one has lower mileage but thin history, the other has higher mileage with years…
2025 BMW M3 — what changed after 100k miles?
2025 BMW M3 Competition, about 21,500 miles. The car has crossed 100k and still drives well. I want to stay ahead of age-related failures instead of waiting fo…
2022 BMW X3 — costs that mattered more than fuel economy
After owning the car for a while, tires, insurance and service pricing mattered more than the MPG difference I obsessed over before buying. What ownership cost…
2024 BMW i4 — buzzing noise only at one engine RPM
2024 BMW i4 eDrive40, about 43,500 miles. There is a light buzz from the dash at one narrow RPM range. It disappears above and below that speed. Any good metho…
2022 BMW X3 — wireless CarPlay drops at the same intersection
Wireless CarPlay is reliable almost everywhere but disconnects at the same intersection on my commute. Does consistent location point strongly to RF interferen…