MY 2019 JETTA BEGAN EXPERIENCING BREAKING PROBLEMS IN LESS THAN 2 MONTHS AFTER PURCHASING THE VEHICLE. AFTER INITIAL START AND DRIVE AT IDLE, THE BREAKING PEDAL PRESSURE WAS ERRATIC AND CAUSING THE CAR TO SLAM TO A COMPLETE STOP. THIS CONDITION ONLY SEEMS TO OCCUR AT IDLE, AND I WAS TOLD AT BRINGING IT INTO SERVICE THAT THE VEHICLE WAS OPERATING NORMALLY. HOWEVER, THE CONDITION CONTINUES TO EXIST AND BEGINNING IN JUNE, I BEGAN HAVING MULTIPLE CHECK ENGINE LIGHTS FOR A EVAP LEAK. NOW AT THE 7 REPAIRS AND HAVING MULTIPLE PARTS REPLACED, THE SERVICE AT THE DEALERSHIP STATES THAT THE AIR INTAKE NEEDED TO BE REPLACED. MY UNDERSTANDING IS THE AIR INTAKE AND VACUUM SYSTEMS HAVE A DIRECT CORRELATION WITH THE BRAKE BOOSTER PRESSURE. HOWEVER, I RETURNED THE VEHICLE FOR SERVICE BECAUSE THE READINESS MONITORS FOR THE EVAP WERE NOT SET, INDICATING THAT A POTENTIAL ISSUES STILL EXIST. ALTHOUGH THE CAUSE MAY NOT BE WITH AIR INTAKE, A VACUUM/PRESSURE ISSUE DOES EXITS CAUSING EFFECTS ON THE OTHER SYSTEMS. THIS IS VERY FRUSTRATING DUE TO THE FACT THAT I HAD INJURED MY LEG IN THE PREVIOUS YEAR AND THE EXCESSIVE PRESSURE AT BREAKING CAUSED ME AGGRAVATE THE PREVIOUS INJURY. ON SEVERAL OCCASIONS, I WAS TOLD BE THE DEALER SERVICE THAT THE VEHICLE WAS OPERATING NORMALLY.