What causes the low-speed abnormal noise in XPeng P7?
2 Answers
XPeng P7 low-speed abnormal noise may be caused by failures in components such as the transmission, generator, water pump, or power steering pump bearings. Transmission failure: If abnormal noise occurs when the vehicle is idling and disappears when the clutch is depressed, it indicates that the noise originates from a transmission malfunction. Transmission noise is generally caused by bearing or gear wear. Since the transmission consists of numerous components, the causes of noise can be complex. Therefore, any abnormal noise should be promptly addressed (transmission repairs can be costly, so regular inspections and frequent oil changes are essential). Generator, water pump, or other component damage: Some noises from the engine compartment due to vibration are normal, but there are exceptions, such as the high-pitched squealing of belts, usually caused by belt slippage. Another example is the sharp sound of metal components dry rubbing, typically resulting from damaged bearings in the generator, water pump, or power steering pump. If abnormal noises originate from within the engine, they usually indicate major faults, and it is advisable for the owner to send the vehicle for professional inspection and repair as soon as possible.
I've repaired many Xpeng P7s, and the most common cause of low-speed noise is brake pad issues. Electric vehicles rely heavily on energy recovery, so brake pads are used less frequently, leading to dust accumulation that can cause squeaking sounds during startup or low-speed driving. Additionally, loose screws in the underbody protection plate can produce a thumping noise when going over speed bumps, and aged suspension link bushings may create friction sounds during turns. Sometimes, it's just a small stone stuck in the tire tread, which you can easily spot by taking a quick look. The most troublesome issue is the reducer bearing problem, which produces a consistent humming noise and should be addressed promptly. I recommend first checking the tires and brake discs yourself. If the noise persists, take it to a shop where technicians can lift the chassis and carefully listen—they can quickly pinpoint the noise source using a stethoscope.
