Mercedes Benz CLK320 Engine Not Running

I Went On Youtube To Reset Service Indicator, I Have Already Had The Service Done. I Believe I Reset The Oil Indicator In Error. Now The Car...

After Using Car For 30-40 Min The Engine Turnned Off When I Stoped Pushing The Fuel...then When I Park (p) It Returns To Work Normally When...

I Bought The Car Listed Above Used. I Do Not Know If Check Engine Light Will Come On Or Not When Starting. I Only Read In The Manual That It...

Can Someone Help Me Figure Out What Is Wrong With My Car. Engine Would Crank But Sounded Like Something Broke And Clanked Under The Hood...