Just wondering with any of you owners if you've found it necessary to have the CX9's brakes serviced specifically cleaning of the discs, rotors and pads? Came to my local Mazda dealer for a change oil svc 3wks ago and they recommended this with the changeoil for approx $200 CAD and is recommended for yearly service...my 2017 Signature has only 15K Kms ODO and is only 1.5yrs old but never had this svc done. They said it is part of the preventive maintenance service and is found in their maintenance schedule. So far I don't notice any brake fade or any hissing sound or other issues on the brakes. Is this a good idea/necessary to service at that interval?