According to the official statement, synthetic oil is responsible for causing short circuiting. This problem is especially bad in countries with humid and hot environment and where stop and go traffic is seen. But VW wants to fix every DS200, no matter the location, to "continue to ensure customer satisfaction".
"Within the framework of further quality monitoring in China and Southeast Asia, it has been discovered that, with vehicles with a 7-speed dual-clutch gearbox (DQ200), electric malfunctions could occur in the gearbox power supply if synthetic gearbox oil is used. This applies in particular if the vehicle is subject to a hot and humid climate, coupled with a high proportion of stop & go driving," Volkswagen Group states.
What models are affected? Well, lots… The DQ200 is a seven-speed dual-clutch gearbox installed in the Golf, Jetta, Polo, Passat and Caddy. Previous recalls targeted only models built between June 2008 and September 2011, but this could be widened even further in the future. Sister models from SEAT, Skoda or Audi will also be affected by the call.
In parallel, VW will also work out two other issues. One of them targets 800,000 Tiguan crossover SUVs, of which 60,000 are in the US. This is a simple fuse swap, so not nearly as important as a broken gearbox. However, the 239,000 Amarok pickups replaced for potential fuel leaks sound serious.