Many automobile manufacturers now have QR codes on their concept packaging. You can scan the QR code and it should be displayed. If it shows pure brand accessories, there will be no problem.

How to distinguish the authenticity of Volkswagen parts:

(1) Look at the price of the parts. Nowadays, most genuine parts manufacturers have regulations on the retail price of parts in a certain area. , even the national unified price, especially for bulk consumer products such as engine oil; the prices of the same type of products from different manufacturers are also very different (compared to domestic products, compared to imported and joint venture products). If a merchant tells you something like tax-free or "parallel imports", be careful. This is often an excuse to cover up fake and shoddy products and lure you in with low prices.

(2) Look at the packaging labels. The packaging of genuine accessories is generally relatively standardized. The packaging boxes and bags are marked with the product name, specifications, models, quantities, registered trademarks, factory names, addresses, phone numbers, etc.; The printing handwriting is clear and regular, and the overprinting colors are bright. The packaging printing of counterfeit products is relatively poor, with overprinted colors, the colors are relatively dull, the edges of the color blocks are not clear, and there are always some speckled ink traces on the non-printed parts of the printed matter. The paper packaging of some imported accessories is made of environmentally friendly recycled materials, which is very special. This kind of material is rarely produced in China, so it is rarely used. You can keep a packaging box that has been tested and proven to be authentic for comparison. Like many accessories products from Japanese manufacturers, once you open the packaging box, there is a special smell that is a bit like logs, but the fake ones do not.

(3) Look at the logos of the accessories. The printed, engraved or cast marks on the surface of genuine accessories are clear and regular, and they are obviously mechanical work; the logos of counterfeit products have a rough and blurry appearance (some genuine products such as clutch discs and brake linings) The printing on the product is also blurred). If you look at the logo of products such as bearing bushes with a magnifying glass, you can see that the writing on the counterfeit product has different depths, which is an obvious trace of artificial forging. The advantage of using a magnifying glass to view the mark is that problems that cannot be detected with the naked eye will be clearly visible under the magnifying glass. For example, if the "Datong" mark in Japan is seen to be a circle pattern like target paper, it must be a fake. It also depends on whether the assembly marks are clear. In order to ensure that the assembly relationship of mating parts meets the technical requirements, assembly marks are engraved on the surface of some parts (such as timing gears). If there are no marks or the marks are blurred and unrecognizable, it will bring great difficulties to the assembly, or even the installation is wrong. This must be a fake product.

(4) Looking at the paint coating, the counterfeiters simply process the waste parts, such as dismantling, assembling, piecing together, painting, etc., and then sell them as qualified products. Like the cylinder shock absorber and clutch face assembly, if the surface paint is not smooth and there are even some small bumps, it must be a refurbished part.

(5) Look at the appearance quality of the accessories. Some genuine accessories are designated with a certain color on the surface. If there are other colors, they are fake and inferior parts. Check whether there is any rust on the surface of the parts. The qualified mating surfaces of the parts have both a certain degree of accuracy and a shiny finish. The more important the parts, the higher the accuracy; if there are traces of wear on the mating surfaces of the parts, or the painted parts are scratched After opening the surface paint, old paint is found, which is mostly used as a camouflage. When purchasing, you should pay attention to inspection. If you find that the parts have rust spots, mildew spots, or the rubber parts are cracked or lose elasticity, or there are obvious turning tool lines on the journal surface, you should pay attention to whether they are fake parts.

(6) Simple testing is required. Some products may look good, but problems may arise after a simple testing. For example, the head gasket products, especially the head gaskets of six-cylinder and eight-cylinder diesel vehicles, the interior of genuine products should have an "H"-shaped skeleton structure, which can be very elastic when slightly bent by hand; the interior of counterfeit products has a mesh structure. No flexibility. You can also check the insert at the edge of the cylinder of the cylinder gasket. The side of the genuine insert that contacts the cylinder is flat with the other parts, while the counterfeit products have bulges on both sides. It is easy to cause oil leakage due to loose sealing during use. , air leakage and water leakage. Check whether the geometric dimensions are deformed. Some parts are prone to deformation due to improper manufacturing, transportation, and storage. During inspection, you can roll the shaft part along the glass plate to see if there is light leakage at the joint between the part and the glass plate to determine whether it is bent; when purchasing the steel plate or friction plate of the clutch driven plate, you can move the steel plate and friction plate. Hold the piece in front of your eyes and observe whether it is warped; when purchasing an oil seal, the end face of the oil seal with a skeleton should be perfectly round and can fit the flat glass without bending; the outer edge of the oil seal without a skeleton should be straight, and it should be deformed by holding it with your hands. It should return to its original shape after you let go.

When purchasing various types of gaskets, you should also pay attention to checking the geometric size and shape. Another way to check rubber parts is to smell the rubber parts. If the smell smells bad, it means recycled rubber. Check whether the glued parts are loose. Accessories composed of two or more parts, the parts are pressed, glued or welded, and no looseness is allowed between them.