My 2017 Hyundai i30 is losing a lot of oil between services

I’ll assume it’s a Hyundai dealership that wants to charge you to assess the car. And I hear what you’re saying about the car’s service history and the fact that some of these engines have been fixed by Hyundai because they were faulty from new. So, the best advice is to forget about the dealership and go straight to Hyundai’s customer service department at head office.

That cuts out the middle man at the dealership and should get you in touch with somebody who knows whether your car was one of the affected ones or whether you’ve just been unlucky in this instance. My experience has been that Hyundai takes this stuff very seriously and has helped other owners in the past. However, your case will still be assessed according to the service history and how many kilometres the car has covered.