2004 VOLVO S40 Unknown Or Other Problems

THE KEY DOES NOT TURN ALL THE WAY TO TURN THE IGNITION - IT'S LOCKED AFTER TURNING I AND II (NOT TO III). I HAD TO HAVE THE CAR TOWED. I COULD HAVE BEEN STRANDED IN AN UNSAFE AREA. I CALLED VOLVO CUSTOMER SERVICE, BUT I WAS TOLD IT'S NOT UNDER WARRANTY ANYMORE. I WENT TO YOUTUBE AS TO HOW I COULD FIX IT AND FOUND OUT QUITE A FEE S40 OWNERS HAVE SIMILAR PROBLEMS. I WAS TOLD THAT THE COST TO FIX THIS WOULD RUN ABOUT $1000. I FOUND A WAY TO GET AROUND MAKING IT WORK BY REMOVING THE STEERING COVER, PULL THE IGNITION SWITCH WITH A SCREW DRIVER. WITHOUT THE KEY ON THE IGNITION, IT STILL POSES A SAFETY ISSUES BECAUSE WHAT IF THE STEERING LOCKS WHILE I AM DRIVING? ANOTHER ISSUE IS THE SUSPENSION: THE CAR FEEL AS IF IT'S FALLING APART. TWICE WE SPENT OVER...

CAR WAS SERVICED ON 25-OCT AT ~49K MILES. NO COMPUTER UPDATES WERE DONE TO THE VEHICLE. 12-DEC, I HAD NEW TIRES PUT ON THE CAR. 13-DEC THE CAR REPORTED "REDUCED ENGINE PERFORMANCE" AND OIL LIGHT CAME ON. PULLED OVER, STOPPED CAR, WAITED A FEW MINUTES AND RESTARTED WITH NO PROBLEM/LIGHTS. DROVE A FEW MILES, SAME EXACT THING HAPPENED AGAIN. THEN DROVE FOR ~45 MINUTES WHEN THE CAR REPORTED SOMETHING LIKE A "SYSTEM ENGINE FAILURE" AND THE CHECK ENGINE LIGHT CAME ON. CAR WAS SPUTTERING WITH NO RESPONSE FROM THE GAS PEDAL. WAS TOWED TO MY DEALERSHIP. SM INFORMED ME THAT THE "MAIN" COMPUTER HAD FAILED, "TWO OTHER COMPUTERS" HAD "STOPPED COMMUNICATING" AND THE "THROTTLE MODULE" FAILED. HE TOLD ME THEY COULD FIX THE CAR FOR ~$300 WITH COMPUTER UPGRADES. HE DIDN'T KNOW IF THAT WOULD FIX THE THROTTLE MODULE AS WELL. IT WAS FIXED IN THEIR OPINION AFTER THEY ROAD...