What should I do if the Audi Q5 shakes badly during the rapid acceleration?

Check whether the left and right axle shafts are bent, disassemble and check whether the inner walls of the left and right inner cages are worn and pitted, and repair them in time if problems are found.

Details are as follows:

When driving, the engine of the car shakes badly, and sometimes it won't start. It may be that the throttle is too dirty, and there is too much carbon deposited in the nozzle and air intake. In the case of cold car, the carbon deposit will adsorb some fuel. If the fuel does not completely enter the cylinder for combustion, it will cause the symptoms of unstable idle speed and difficult start.

When driving at a high speed, the steering wheel can feel obvious jitter or jump, but it is not obvious at a low speed. In fact, there are many problems that cause automobile engine jitter. First of all, eliminate the abnormal jitter caused by engine failure, because engine failure usually occurs at low speed.

First, visually check whether the balance lead block on the rim is missing or whether the hub is obviously deformed. We turned to professional testing equipment, because the subtle deformation of steering rod, suspension and wheel hub is difficult for us to distinguish with the naked eye. Check whether the left and right axle shafts are bent, and remove the inner walls of the left and right inner cages for wear and pits, which are mostly caused by the damage of the inner cages. ?

Modern cars are mostly front-mounted and front-driven, and their inner cages are mostly telescopic to adapt to the change of the relative position between the transmission terminal and the driving wheel when the vehicle is running. After disassembly and inspection, it is found that the part of the inner wall of the inner cage that often contacts with the outer skin of the needle roller bearing, that is, the part that transmits torque (stress point), has produced pits, so replace the damaged inner cage or half shaft.

References:

Processing method of jitter during automobile acceleration