制动失灵包括制动踏板行程过大，制动作用迟缓，制动效能很低甚丧失，制动距离增长。对此故障的排除方法有三种，下面
济南沃尔沃汽车专修厂家为您解答。
Brake failure includes excessive brake pedal travel, slow braking, low or even loss of braking efficiency, and increased braking distance. There are three troubleshooting methods for this problem. Now, the manufacturer specialized in Volvo Cars in Jinan will answer the question for you.
1.刹车片磨损严重。
1. The brake lining is seriously worn.
刹车片表层摩擦块磨损严重，车辆制动时，刹车片底部钢板与刹车盘摩擦，会导致车辆制动性能下降。维修技师使用举升机将车辆举起，拆下车轮，检查刹车片的厚度；如果刹车片过薄，可确认是磨损严重，从而造成了刹车刹不住的情况。
The friction block on the surface of the brake pad is seriously worn. When the vehicle brakes, the steel plate at the bottom of the brake pad rubs with the brake disc, which will lead to the decline of the vehicle's braking performance. The maintenance technician lifts the vehicle with a lift, removes the wheels, and checks the thickness of the brake pads; If the brake pads are too thin, it can be confirmed that they are seriously worn, which causes the brake failure.
更换刹车片。刹车片属于耗材，不在车辆质保范围内，车主需要自费！
Replace the brake pads. The brake pads are consumables and are not covered by the vehicle warranty. The owner needs to pay for them!
2.刹车分泵故障。
2. The brake wheel cylinder is faulty.
车辆制动时，刹车分泵推动刹车片完成车辆制动过程。刹车分泵故障，会导致其无法推动刹车片与刹车盘实现车辆制动效果。维修技师使用举升机将车辆举起，拆下车轮，检查刹车分泵是否有开裂、漏油等现象；如果有上述现象，即可确认刹车分泵出现故障。刹车分泵故障，会导致踩刹车的时候压力传输不下去，进而出现刹车失灵的情况。
When the vehicle brakes, the brake wheel cylinder pushes the brake pad to complete the vehicle braking process. The failure of the brake wheel cylinder will cause it to be unable to push the brake pad and brake disc to achieve the vehicle braking effect. The maintenance technician lifts the vehicle with a lift, removes the wheels, and checks the brake wheel cylinder for cracks, oil leaks, etc; If the above phenomena are found, it can be confirmed that the brake wheel cylinder is faulty. The failure of the brake wheel cylinder will lead to the failure of pressure transmission when the brake is pressed, which will lead to the failure of the brake.
更换刹车分泵。车辆在质保期内，可到4S店更换；车辆超出质保期，4S店的更换费用存在。
Replace the wheel brake cylinder. The vehicle can be replaced at the 4S store for free within the warranty period; The car is out of warranty, and the 4S store has replacement fees.
3.刹车助力鼓漏气。
3. The brake booster drum leaks.
刹车助力鼓可帮助驾驶员对刹车系统施加额外的制动力，进一步缩短刹车距离，保障车辆行驶。如果刹车助力鼓漏气，会导致车辆刹车辅助功能失效，车辆制动能力降低。维修技师打开引擎舱，检查刹车助力鼓管道接口是否发生松动。
The brake booster drum can help the driver to apply additional braking force to the brake system, further shorten the braking distance, and ensure the driving safety of the vehicle. If the brake booster drum leaks, it will lead to the failure of the vehicle's brake assist function and the reduction of the vehicle's braking capacity. The maintenance technician opens the engine compartment and checks whether the pipe interface of the brake booster drum is loose.
重新紧固刹车助力鼓管道接口。车辆在质保期内，可到4S店处理；车辆超出质保期，具体费用可来详细咨询。
Retighten the pipe interface of the brake booster drum. The vehicle can be handled at the 4S store for free within the warranty period; The vehicle is out of warranty. Please consult us for specific fees.
In addition, we recommend that owners regularly maintain their vehicles and timely replace parts that have reached their service life. This aspect really needs attention. After all, it is related to the safety of personnel. More relevant information will come to our website http://www.lutongqixiu.com Consult!
