2018 VOLKSWAGEN GOLF Electrical System Problems

I was coming back from work and was driving on the highway at around 80 mph. All of a sudden, literally out of nowhere, the car started shaking violently, and the steering wheel was shaking super fast violently (vibrating) and was very heavy and hard to move. Also, the D started flashing. I was struggling to control the car. I noticed that the Abs light, steering light, suspension light for DCC, and a whole bunch of other lights except the engine light. The car was in custom mode. Sport steering and sport Suspension, Normal for powertrain. All windows and sunroof were fully open, and music was playing. When all this occurred, I could hear outside the car something that sounded like metal tinging or metal contact. idk. This was while the car was still moving. When I pulled over, all the lights went away. I turned off the car for...

I have owned the 2018 VW GTI since new. With 105,000 miles, following a 30 minute highway drive, the EPC light came on and the vehicle entered limp mode. After turning car off, letting it sit 5 minutes, and restarting, EPC light went off and no limp mode. Drove car daily for another week with no observed issues until appointment. Brought car to dealer. They identified the fuel injector wiring harness was faulty and needed to be replaced, and fuel injector #3 was dirty and needed to be replaced, at total cost of $1,756. Online search turned up VWP-23-03, a FUEL INJECTOR WIRING HARNESS LIMITED WARRANTY EXTENSION up to 10 years or 120,000 miles for similar VW cars: 2018-2019 Tiguan 2018-2019 Beetle 2018-2020 Passat So the same exact part, on thousands of other VW models produced at the same time, is covered by a warranty extension. The dealer declined to...