Greetings, I own a 2010 model 3008 1.6 VTI. I recently took my car to the dealership with complaints of exhaust emissions and oil pressure issues, along with shaking, knocking, stalling, no gas mileage, stuttering, and incessant fan operation. We started with spark plugs and coils, but nothing improved. We removed the top cover, and it underwent a complete overhaul. I picked up the car today, drove it for half an hour without any problems, and all the problems were resolved. After 20 km, all the problems started again, one by one. I'm about to go crazy. Just when I thought I'd solved everything, I realized I hadn't made any progress after a lot of effort and expense. Everything I've done has been in vain, and the problem remains unknown. Has anyone experienced this? I'd appreciate your advice and experience.