140,000 kilometers, replacing front and rear discs and pulley sets_vehicles, vehicles

140,000 kilometers, replacing front and rear discs and pulley sets

September 5, 2024

The 17 model 320 has traveled nearly 138,000 kilometers in six years. Currently, there is an unknown howling at a speed of 60-80. It is initially suspected that it is abnormal noise from the pulley. The brake pads have been replaced once every 80,000 kilometers. The brake discs have been worn by 2mm using vernier calipers. Recently, I often need to travel long distances and decided to replace the front and rear discs and pulley sets for safety reasons. The price of the original parts set at my friend’s auto repair shop is as follows:
Front film A0004207900=620 yuan
Frontline A1695401617=25 yuan
Rear film A0004205602=620 yuan
Rear line A1695401617=25 yuan
Belt A0039938596=255 yuan
Tensioner A2762000370=680 yuan
Idler gear A2762020119=235*2=470 yuan
Front plate A0004212312*2=950*2=1900 yuan
Back plate A0004231712*2=680*2=1360 yuan
Spark plug 85*6=510 yuan
The total working hours are 500 yuan
For reference by motorists.
When replacing the spark plug, I used a lens to check the combustion chamber, and there were still a lot of carbon deposits. Since I first picked up the car, I have insisted on adding one bottle of original additive to every three boxes of oil. The master of the auto repair shop suggested running another 2000 kilometers to 140,000 kilometers for maintenance. At the same time, I would clean the carbon deposits in the cylinder just to change the oil. The howling was not noticed after the pulley set was replaced.