
There are several reasons for the buzzing sound inside the Lamando while driving: 1. Storage compartments inside the car: Loose items scattered in the glove box or loose wires from aftermarket electronic devices can cause noise. Items in storage compartments, the glove box, or even the nose pads of sunglasses in the glasses holder can rattle. 2. Transmission components: This mainly relates to transmission components, such as tires, CV joints, etc. You can identify the cause by lifting the car at a repair shop. The noise persists whether driving at low or high speeds, and its frequency increases with speed. If the motor pulley has been replaced or if it hasn't been replaced after more than 80,000 kilometers, the issue is likely caused by the pulley. It's advisable to have the motor pulley checked at a repair shop, as it may be aged or a recently installed substandard part.

I encountered this situation last year, the humming noise got louder the faster I drove. The main issue turned out to be the tires. Insufficient tire pressure or uneven tread wear can make the car sound like it's whistling while driving; aging wheel hub bearings are also a common cause, especially noticeable when driving at high speeds in cars with over 100,000 kilometers, as the increased friction from loose bearings creates a distinct hum. Another possibility is warped brake discs—they might be fine during normal braking but start making noise when coasting. I recommend first checking and adjusting the tire pressure to around 2.5. Last time, fixing the bearings cost me over 500 yuan, so it's better to check early to avoid damaging other parts.

The sources of humming noise usually come from three parts: Loose chassis structural components, such as aging engine mounts or exhaust pipe hangers, transmit resonance into the cabin, creating a dull humming sound that isn't audible at idle but appears when speed exceeds 60 km/h; Cracked suspension bushings, which produce a clicking sound over speed bumps but cause humming on flat roads; Unbalanced drive shafts, with rear drive shafts being a common issue in 4WD vehicles, while wheel bearings account for most problems in front-wheel drive vehicles. Simple self-test: Maintain a speed of 60 km/h, if the noise persists when coasting in neutral, the engine can be ruled out, and priority should be given to lifting the vehicle to check for binding in the bearing rotation.

I experienced this with my Lamando, the buzzing noise in the city was annoying. It's most likely a tire issue—either uneven tire wear or small stones stuck in the tread, especially if the inner edge of the front tires is wearing down. Another possibility is the spare tire not being secured properly, causing it to rattle over bumps and turn into a buzzing sound. Also, if the windows aren’t fully closed, wind whistling can sound like a mechanical noise. Pull over quickly and check if the wheel hubs are hot—a bad bearing can make them scorching. For minor issues, clear out stones or adjust tire pressure yourself. If it’s serious, take it to a shop for inspection—don’t push it and risk damaging the car.

Unusual noises while driving should be taken seriously for safety. My friend ignored a humming sound in his car, and later the wheel bearing shattered on the road. When troubleshooting, pay attention: if the humming changes with vehicle speed and is unrelated to engine RPM, it likely points to the wheel bearing; noises at a fixed speed may indicate issues with the drivetrain or differential; if the noise lessens or disappears when braking, the brake system may be the culprit. It's recommended to check wheel balance, as significant shaking at high speeds can be a sign; use a stethoscope against the wheel well to listen for bearing noise. Timely inspections can save you from costly repairs.


