Ford S Max Fuel Filter?

Hi there please i hope someone can help me, basically i changed my ford s max fuel filter and now since i changed it my car will not start and i had to buy a new battery, what steps or options do i have in regards to getting this started.

Is buying a certified pre owned Audi a safe and responsible decision? $20,000 budget

I'm a recent college grad not making a ton of money. Currently I lease a 2015 Ford for around $270 a month. My lease is up soon and being that I live in the north east, I'm looking into AWD vehicles. I've only ever had FWD and am considering financing a 2018 Honda Civic but want the reassurance of having AWD. I looked into pre owned audis and many of them are in the $20,000 price range. However, I'm worried that by the time I ll be done paying for it, I ll have an 8 year old luxury car that will be expensive to fix when it has issues. Any opinions?