Based on the analysis of the noise situation and searching the relevant cases of the network, it is considered that although the cause of the noise can not completely rule out the factors such as engine, oil, carbon deposition, tires and so on, the most likely cause is the bearing problem. This point was also confirmed in the communication and communication with some riders.

On a sunny morning, I drove our C5 from Deyang along Chengde Avenue to a shop in Chengdu that was familiar with the Citroen car system. The straight Chengde Avenue is flat and spacious, the C5 car gallops smoothly on the smooth paved road, and the heavy body and chassis coupled with single-guide extreme boot tires make drivers hardly feel any bumps and shakes. but it is this noise that is like countless bees circling and dancing in the trunk, so that people’s mood is not as cheerful as the weather.

Blue flowers and couplets are in full bloom on both sides of a clean and refreshing street in Chengdu’s Xindu district, and a connected car repair shop is set up on the side of the road. After simple pleasantries and exchanges, the shopkeeper, the veteran master, and his assistant began to inspect the vehicle. There is no single moth, everything is as expected, two pairs of front bearings no-load jitter and accompanied by abnormal noise, it can be determined to be the main cause of noise. These two sets of bearings are still the original parts of the original car. They have been working continuously for more than ten years, and it is time to retire.

Bearing replacement is very smooth, the use of NTN brand bearings, the master saw that the brake pads are almost worn, it is recommended to replace the four-wheel brake pads will also be changed to the original factory. Two pairs of bearings, four sets of brake pads, together with a total of 1900 rice, there is still a big discount compared to doing in 4S.

The return journey is still on Chengde Avenue, the sky is still blue, and the “old friend” C5 still runs fast and steadily, but the difference is that the car is much quieter.