The sagittal rear axle breaks and wide

FAW-Volkswagen finally reached the recall phase of the new Sagitar "broken axis" incident. FAW-Volkswagen submitted a recall report to the General Administration of Quality Supervision, Inspection and Quarantine on the same day. It will recall 563,605 FAW-Volkswagen Sagitar and 17,485 imported VW Beetles equipped with coupled-rod rear suspension in China because the rear suspension boom may break. Our reporter learned that the recall of the general public involves China, Germany and other global markets, with a total of more than 1 million vehicles. Whether in China or in foreign markets, failure to inspect the vehicle will lead to the breakage of the longitudinal arm, but in the effect of recalling repairs, Volkswagen's statement on US consumers does not guarantee that the liner can continue to maintain stability after the longitudinal arm breaks. .

Why is the trailing arm broken? Failure to repair after bending leads to breakage

FAW-Volkswagen said in a recall statement that, in a few cases, these new Sagitar and Beetles equipped with coupled-rod rear suspensions may have been subjected to impacts from behind or behind, which may result in coupling rod-type rear suspensions. Arms bent. If this damage is not discovered and repaired in time, it may cause accidental breakage of the coupled-lever rear suspension arm, which may cause the vehicle to lose its control during driving.

Since the recall also involves some imported Volkswagen cars, it can be judged that the problem is not local production, and the impact of the recall is not limited to the Chinese market.

Volkswagen U.S. announced on the 17th that it had recalled more than 400,000 2011-2013 Jettas (namely US Sagitar) and more than 40,000 2012-2013 beetles in the US market. The statement acknowledged that these vehicles were equipped with a torsion beam type rear suspension, and the trailing arm had the risk of fracture.

According to the US auto website AutoWeek, the Jetta models on the U.S. and European markets are produced from VW’s factory in Mexico. According to the American Auto Evolution website, 15,500 vehicles in the German market will be recalled.

Does the liner "patch" fly? It is not mentioned in the U.S. statement that the liner can keep the vehicle stable

The solution proposed by FAW-Volkswagen was to install metal liners on the trailing arms, which was also dubbed "patching" by netizens. The effectiveness of this approach has also caused some controversy.

The recall statement issued by Volkswagen USA on the 17th stated that the description of the rear suspension longitudinal arm problem is basically the same as the version released by China, and the remedial measures are the same.

However, the two statements have some deviations from the description of the effectiveness of the remedial measures. Regarding the function of the liner, FAW-Volkswagen stated in the Chinese version of the statement that “if the trailing arm accidentally breaks, the metal liner can ensure the driving stability of the vehicle”. In the US version of the statement, Volkswagen's role in the liner was interpreted as follows: If the rear of the vehicle is impacted, the liner will issue a warning noise, prompting the owner to “bring” the vehicle to an authorized dealer for inspection.

The reporter noted that both statements acknowledged that "impacting" is the cause of the break in the longitudinal arm. In a statement, Volkswagen’s US company stated that the role of the liner is to prompt the owner to repair it in time after the impact, and according to the statement, if the damaged trailing arm is not repaired in time, it will break.

Although the description of the cause of the problem and the treatment methods are the same as those in the Chinese market, the U.S. version of the statement did not mention "the liner can guarantee the driving stability of the vehicle." The American auto website AutoEvolution directly interprets it as that the lining does not increase the strength of the trailing arm.

Is there a difference in treatment at home and abroad?

Sino-US simultaneous recall of the same treatment

In the Volkswagen U.S. company’s statement, it was mentioned that the impact from the side or the rear may cause the longitudinal beam of the torsion beam rear suspension to be damaged. If the damage is not discovered or repaired in time, the longitudinal arm will suddenly break and cause the vehicle to lose. Stability, and may cause a car accident. Excluding the differences in individual terms, it can be seen that the description of the US market statement is basically the same as the FAW-Volkswagen version.

Similarly, the processing method in the U.S. market is also the installation of metal liners. Volkswagen U.S. said in a statement that VW authorized dealers will check whether the vehicle's trailing arm is damaged or not. For vehicles that have no damage to the trailing arm, VW authorized dealers will install metal liners for them.

The statement did not describe the handling measures for vehicles whose longitudinal arms had been damaged but not broken, but according to the report of the “Automobile Blog” website, Volkswagen will replace the entire torsion beams for such situations.

A VW spokesperson said in an interview with AFP that if there is a collision, the rear axle may be damaged, “(in this case) the rear axle is safe, but because we can not ensure that all owners will be in the rear axle After the damage went to the repair shop, so a recall was needed."