1. The exhaust gas is not normal
Blue smoke when the cold car starts, indicating that the oil is burned, it may be the fault of the valve oil seal, go to the repair shop to change one, the cost is not high. In addition, it may also be caused by piston ring or engine wear, which requires on-site inspection to determine the point of failure and repair costs. It should be that the burning oil is more serious, it is recommended to go to the 4S shop in time for maintenance.
2. The braking distance becomes longer
Braking is related to driving safety, after finding a problem, don't continue to risk driving on the road, quickly find the cause. Open the engine cover, check whether the brake oil is too dirty, too little, the brake oil is too dirty boiling point is low, bubbles are generated when braking, it should be replaced in time, and too little will be added in time.
In addition, check whether the total brake pump has too many impurities, oil leakage, and whether the vacuum booster pump fails. Whether it is caused by improper operation, such as frequent sharp braking caused by overheating of the brake pads, and temporary failure of the brakes.
3. The steering wheel is crooked
The so-called "car positive wheel straight", that is, the car walks in a straight line, and the steering wheel is also positive. If you find the car traveling in a straight line, but the steering wheel is tilted to the left or right at an angle. First of all, recall whether you scratched your teeth across the road before? Because sometimes inadvertently squeezing tires/wheels.
Although the appearance is not seriously damaged, it is possible that the front wheel knuckle or steering lever is deformed by external force squeezing, which is reflected in the steering wheel is distorted by an angle. At this time, do a four-wheel positioning, detect whether the vehicle positioning parameters have changed, or consult the 4S shop technicians.
4. The steering wheel is shaking
When the vehicle travels to a speed of 80 km/h or higher, the steering wheel has a high frequency of jitter, but below this speed, the jitter phenomenon will disappear. It is generally a problem of forward balancing.
When the tire is replaced or replaced, the tire dynamic balance should be readjusted. The purpose of doing tire dynamic balancing is to eliminate the centrifugal force generated when the tire rotates. Under normal conditions, it is recommended to do it every 10,000 kilometers.
5. Tire noise
Tire life is usually 5 years, and the mileage is within 80,000 kilometers. After more than 5 years, the tires began to age, the mileage reached 80,000 kilometers, and the life of the tires has basically reached the limit of 1. Vehicles parked in the basement will have a relatively long tire life, after all, they do not have to experience wind and sun. And perennial "sleeping on the street", the wear of the tire will increase, while the service life will be reduced.
When the life of the tire has reached the limit of 1 pole, there will be different degrees of cracks and loss of elasticity, and continued use will lead to risk factors such as punctures. Aging tires have severe low-speed resonances during driving and will make abnormal noises.
6. The gearbox temperature is too high
This failure is mainly for some automatic transmissions equipped with transmission alarms. If the gearbox temperature is too high and continues to be used, the gearbox will be in a protective state and cut off or weaken the power output, if you maintain this state for a long time, it will have a great impact on the gearbox. Once the transmission oil temperature overheating alarm is found, it must immediately pull over to the side to dissipate the heat.
Driving in the city, especially when waiting for traffic lights for a long time, it is the gearbox that switches to N gear, do not hang up D gear for a long time, and step on the brakes. If such failures occur frequently, it is recommended to check the transmission oil for dirty or to check the transmission cooling system.