2013 Audi A5

WHILE APPROACHING A TURN I SLOWED DOWN , ANOTHER CAR CAME AROUND THE RIGHT SIDE. MY CAR WASN'T RESOONDING I WASN'T ABLE TO BEAR RIGHT AROUND CURVE AND WENT ACROSS ROAD AND UP HILL. APPROACHING HILL FELT LIKE I DIDN'T HAVE POWER STEERING, I TOOK 2 HANDS AND GRABBED THE STEERING WHEEL AND FORCED MYSELF TO GO DOWN , BRAKES SEEMED USELESS.. CAR WENT DOWN HILL. I PUT FOOT ON MY BRAKE BECAUSE I WAS IN HEAD ON TRAFFIC ON A SMALL BACK ROAD. I THEN PUT CAR IN REVERSES, IT JERKED BACK TO STRAIGHTEN CAR UP, AND STRAIGHTEN UP CAR- DROVE UP TO LIGHT SHAKEN UP, PULLED OVER TO SHOULDER - NO SHOULDER THE BACK ROAD AT IT WAS ABOUT 10 PM WEEKNIGHT... I LOOKED AT THE DRIVERS FRONT END THAT MADE CONTACT AND IT LOOKED OK- JUST SCRAPES... I DROVE HOME AND WOKE UP TO FLAT TIRES IN AM. I TOOK MY CAR TO AUDI TURNERSVILLE- AUTOMALL. I TOLD THEM OF SAFETY CONCERNS- THEY FINALLY ON WEDNESDAY RAN A SCAN- NO TPMS ILLUMINATED OR DEFUALT LIGHT- I WAS LIED TO AND TOLD IT DID, UNTIL I ASKED TO SEE REPORT. SERVICE DEPT. TIGHTEN MY DRIVERS DOOR THAT WAS LOOSENED BY IMPACT BEFORE INS COMPANY SAW THE CAR. AUDI CORP SENT A ENGINEER AND I WAS TOLD THEY WOULD GO OVER MY REPORT AND CONCERNS, I WAS TREATED HORRIBLE BY DEALERSHIP, THEY WORKED ON MY CAR WITHOUT CALLING ME FIRST, TIRED TO REMOVE CAR FROM DEALERSHIP TO TAKE TO ANOTHER COLLISON CENTER AND I WAS TOLD IT WAS ALREADY ON THE LIFT AND AUDI WOULD BE THERE FOR MY SAFETY CONCERNS ON MONDAY/ I NEVER AUTHORIZED AUDI TO LOOK AT MY CAR- I WAS TOLD. I WAS GIVEN A HAND TYPED REPORT - 2 DAYS AGO THAT MY CAR IS SAFE... ONLY MALFUNCTION CODE TPMS CAME ON IN APRIL. AUDI WOULD ALLOW ME TO SPEAK TO THE AUDI REP WHILE HE WAS HERE FROM MICHIGAN AND STILL HAS REFUSED TO ANSWER MY CONCERNS ON THE ORIGINAL 26 PAGE REPORT I HAVE FROM SERVICE, MY IGNITION KEY STICKS OCCASIONALLY , MY REAR BACK UP CAMERA DELAYS AT TIMES- DEFAULT FOUND DRIVERS HEAD RESTRAINT ???