Hello, I had an experience a few days ago and wanted to hear your opinion. While I was on the highway, the engine control light started to flash and the car was jerking. I had to drag the car to a nearby free workshop and leave the key to wait for the repair. A few hours later I called and learned that the ignition module and spark plugs had to be replaced. The workshop did this without my condition. * 1.5 hours “System diagnosis engine electronic, ignition high voltage parts renewed” (127 euros net) * 1 ignition module (396 euros net) * 4 spark plugs (56 euros net) I wonder if this is a reasonable calculation and if the workshop was right to replace the parts without my consent. It is a Opel Astra J 1.6 115ps Thank you in advance for your feedback. advice and advice!