Exterior paint inspection. The first step is to allow dealers to the car park to the outdoor-lit place; The second step is a distance around the body walk around, look carefully at the paint color, the color of the entire vehicle are the same, easy to find flaws to go first out, and to look at the bottom and top of the body which is not easy to perceive; The third step is to take a closer look, close to the body with a short distance away observe whether the body paint abrasions, cracking, blistering or rust and scratches mend traces of paint. According to special margin fan clutch is understood, they touch any repair marks, do not obscured by dirt or dust the maiming traces, in order to check the test vehicle is not. Also look at the door gap is uniform, the flexibility of opening the doors, painted surfaces without scratching the edge of the corner of any rust. To view the windshield without injury. Also, note that the glass is not his first wife, marked the bottom of the glass, so that you carefully selected vehicle car accident.
Open the front cover, check the battery, tank leaks, the various parts of the alignment is reasonable, without confusion. Check the brake fluid and coolant is specified by the manufacturer between the MIN and MAX lines, the direction of the hydraulic oil level should be between the MIN-MAX. Check the engine belt longitudinal cracks. New car battery look at the connector No corrosion and a small window is green on the line. To look at the thread connection, shaking, pay attention to the battery connector loose, drove off must be tightened. Check the car for leakage phenomenon, may often be the site of the oil spill is the sump of the engine, transmission and rear axle, just look into these parts of the shell traces of oil leakage, or observe the ground under the vehicle corresponding to the engine, transmission box, shock absorbers, water tanks, four-wheel inside the drip, drip marks, you can fix. Check the radiator water droplets on the ground or the lower part of the radiator significant drop agglutination hand to touch the bottom of the radiator, where there is more water, you might radiator leakage problem exists. Check the engine oil pan oil leakage; check the rear axle main reducer shell lubricants leaking; check whether the steering oil leakage; Check the fuel supply system, especially the fuel filter, the fuel line for leakage oil.
Special margin fan Clutch teach you, the selection of the engine
Engine cold start Note the tachometer pointer changes, under normal circumstances, the pointer should hit about 1200 rpm, then the normal smooth slipped to 800 rpm.
2. Well to listen to the sound of the engine. This can only feel. Standing in the middle position of the two cars, leaving the two vehicles the same distance, out loud car, you can turn around to listen, to prevent you from hearing ears delusions;
Listen to the sound of the engine. Open the front cover with a screwdriver end of the top of the engine, the other end on top of the ears to listen to the sound, which can be heard inside the engine sound is noise, good engine only a "rattling" sound, there will be no other noise. However, this method usually rely to accumulate experience
Someone to help, let him step on the gas to enhance the speed of the engine you listen to the sound. Then use a rag blocking the exhaust port, if the engine sound significantly Shen and a few seconds to turn off, is a good car! Otherwise, where leakage.
Get off to observe the exhaust pipe exhaust is normal, put his hand to feel the exhaust continuous, normal should the palm a little wet, but should not be organic greasy exhaust port, and then listen to a slow refueling engine sound whether continuous and any abnormal sound, and finally listen to the sound of hard acceleration and engine throttle reflect accurately and rapidly, but also pay attention to slow the engine oil and fast closing oil reflect whether neat, if any lag or high-speed whistle, there should be a problem.
