2005 AUDI A4 Engine And Engine Coolingengine Problems

I PURCHASED CERTIFIED PRE OWNED CAR FROM DEALERSHIP-AUDI A4 3.0 QUATTRO, 2005. 2 DAYS LATER I COULD NOT PASS REQUIRED STATE INSPECTION DUE TO "CHECK ENGINE" ISSUE-MISFIRE ON A 6TH CYLINDER. I BROUGHT THE CAR BACK TO DEALERSHIP A FEW DAYS LATER TO CORRECT THE PROBLEM. THE PROBLEM WAS CORRECTED TEMPORARILY AND CAR PASSED THE INSPECTION-'CHECK ENGINE' LIGHT WAS RESET BY DEALERSHIP. A FEW MONTHS LATER "CHECK ENGINE" ISSUE CAME BACK AFTER SCHEDULED MAINTENANCE (AT 50,000 MILES) WAS DONE BY AUTHORIZED DEALERSHIP. PROBLEM WAS TEMPORARILY CORRECTED 2ND TIME. IN DECEMBER 2008 AFTER 3RD TIME "CHECK ENGINE" ISSUE, DEALERSHIP PROPOSED TO REPLACE WHOLE ENGINE IN ORDER TO RESOLVE THIS ISSUE, WHICH WAS DONE. ON FEBRUARY 11, 2009 DRIVING BACK HOME FROM WORK I'VE NOTICED AN EXHAUST GAS SMELL INSIDE THE CAR, CAR WAS SHAKING AND "CHECK ENGINE " LIGHT WAS "ON"/NOT STEADY. I CONTACTED AUDI CUSTOMER SERVICE ADVOCATES TO REPORT THE...

TL*THE CONTACT OWNS A 2005 AUDI A4. WHILE DRIVING 2-5 MPH IN REVERSE, THE VEHICLE WOULD NOT ACCELERATE AND THE ENGINE WARNING INDICATOR LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY STATED THAT THE COIL THAT DISTRIBUTES SPARK TO THE CYLINDERS DEGENERATED AND LOST POWER. THE DEALER REPLACED FOUR IGNITION COILS. THE CURRENT AND FAILURE MILEAGES WERE 52,000.