iOS 11 Bluetooth connection problem with Renault megane

Hello. After upgrade my iPhone 7 Plus to iOS 11 I cant connect the Bluetooth with my rlink2 in Renault megane. I tried every possible solution that I read in internet from other users with the same problem. Nothing happened. Is very big problem and only Apple can fix it. If you can’t you have to inform us. Then we will buy other devices like Samsung or lg or something that we ca pair to our car