Car bearings: car bearings generally do not have problems, but in the daily driving self-check, the car wheel up to release the handbrake, hard turn the car wheel in turn, if there is a buzzing noise, indicating that the bearings have problems.
Shock absorbers: shock absorbers once the problem will affect the stability and comfort of driving, shock absorbers the longest problem is oil leakage. If the vehicle in the traveling obviously feel the bumps, must check in time, otherwise it will be a big hidden trouble.
Steering tie rod: steering tie rod is the direction control system of the vehicle, if there is a problem may lead to the vehicle direction is not grasped, resulting in serious accidents. So in each maintenance should also check this place, hold the tie rod shaking hard, if there is no loosening said everything is normal.