What causes the abnormal noise when the BMW X3 is running?

3 Answers
Mallory
07/29/25 5:35pm
BMW X3 running with abnormal noise may be caused by the following reasons: Oil problem: The engine oil does not fully lubricate all parts of the engine. It takes some time for new oil to evenly lubricate all components. If the noise persists after a while, it may indicate severe wear. Additionally, cleaning the internal parts of the engine can enlarge the gaps caused by wear. Poor sealing: Large gaps and poor sealing can lead to deteriorating engine conditions, which may also cause noise. It is recommended to have it checked at a repair shop. Maintenance issue: Lack of maintenance may result in excessive carbon buildup (such as in the engine, throttle, spark plugs, etc.). Cleaning at a repair shop can resolve this issue.
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McBrandon
08/14/25 8:47am
I felt quite nervous when I noticed an unusual noise coming from my BMW X3 while driving. The sound resembled something rubbing or clicking, possibly originating from the tires or the chassis area. My first thought was a tire issue, such as uneven tire pressure or tread wear, as unbalanced tires can cause a humming noise. Alternatively, it could be a problem with the shock absorbers in the suspension system, resulting in a clunking sound when driving over bumps. Another possibility is improper clearance between the brake discs and pads, which might produce a rustling noise during turns or acceleration. Worn wheel bearings are also a common culprit, often causing an annoying whining sound. I tried inspecting it myself, like stopping to check for foreign objects or leaks in the tires, but couldn't resolve the issue. So, I promptly took it to a repair shop to prevent a minor problem from turning into a major accident. Safe driving should never be taken lightly, and proper maintenance is essential.
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Lori
10/13/25 7:48am
As a seasoned BMW driver with years of experience, I've encountered quite a few abnormal noises. Common causes of noise in the BMW X3 include: tire imbalance producing a low-frequency humming sound, loose suspension links causing a clunking noise when going over bumps, or sticky brake calipers resulting in a squeaking sound when braking. If the wheel hub bearings are worn, the noise resembles metal grinding and becomes more noticeable at higher speeds. It's important to identify the source of the noise—issues in the front wheel area are often related to tires or brakes, while noises from the rear could indicate loose components in the all-wheel-drive system. I make it a habit to check tire pressure before driving to ensure it's within the standard range; if the noise persists, don't ignore it—seek a technician's diagnosis immediately. Driving with peace of mind is paramount—don't let noise ruin your journey.
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