What is the reason for the buzzing sound after replacing the bearing on the Sagitar?
3 Answers
The buzzing sound after replacing the bearing on the Sagitar could be due to a problem with the new bearing or an issue during the installation process, requiring further repair. Below are the relevant details about the Sagitar: 1. The Sagitar is a compact car under the Volkswagen brand, with dimensions of 4753mm in length, 1800mm in width, and 1462mm in height, and a wheelbase of 2731mm. 2. The new Sagitar is equipped with either a 1.2-liter turbocharged engine or a 1.4-liter turbocharged engine. (1) The 1.2-liter turbocharged engine delivers 116 horsepower and a maximum torque of 175 Nm. This engine reaches its maximum power at 5000 to 6000 rpm and its maximum torque at 1500 to 4500 rpm. It is paired with either a 5-speed manual transmission or a 7-speed dual-clutch transmission. (2) The 1.4-liter turbocharged engine produces 150 horsepower and a maximum torque of 250 Nm. This engine achieves its maximum power at 5000 to 6000 rpm and its maximum torque at 1750 to 3000 rpm. It is matched with a 7-speed dual-clutch transmission.
I just replaced the bearings on my Sagitar, but the humming noise is still there, which is quite annoying. Possible reasons include: the new bearings weren't installed properly, such as loose screws or misalignment; or there might be issues with other original car components, like uneven tire wear or incorrect tire pressure, causing significant vibration and noise at high speeds; slight wheel hub deformation or rust could also transmit noise. I've heard from mechanics before that after replacing bearings, you should also check the suspension system and drive shaft, as wear in these parts can also cause noise. I recommend you drive back to the repair shop for a recheck and have them use professional tools to diagnose the exact source. Don't delay too long, as this could affect driving safety. For daily driving, regular wheel alignment and maintenance can save you a lot of trouble.
If your Sagitar still produces a humming noise after replacing the bearings, the issue may stem from several areas. Firstly, improper installation is critical – loose bearings or damaged hub holes can cause uneven force transmission and noise. Secondly, poor tire balance, wear, or bent rims may amplify vibrations. Additionally, substandard quality of the new bearings themselves with inadequate materials can lead to recurring faults. I recommend promptly inspecting the drivetrain components such as universal joints or shock absorbers for signs of aging. A professional workshop can quickly pinpoint the issue using a stethoscope, allowing early intervention to avoid major repairs. For daily maintenance, practice smooth acceleration and deceleration to reduce mechanical stress and extend component lifespan.
