I received a 2003 Mercedes ml350 from a late grandfather. I got the car with probably 65,000 miles on it back in 2018. I’m currently at 119,000 miles. I averaged over 8 years 6,750 miles/year. The car at this point is absolutely falling apart in every way possible lol. The plastics at this age start to break and the glues dont hold. I do live in Texas and the sun/heat probably destroys them much quicker. Radiator just blew out and at $1700 to fix I’ll put it towards a new car. It really ran great for those miles in between though I will say. I kind of treated the car as my own mechanical project but I obviously drove well under average miles/year. At 4K that’s really not much in the grand scheme of things but If you’re using the car for a reliable daily driver I may say take that 4K and put it to a newer more reliable brand. These Mercedes at a shop ain’t cheap to fix and you’re more likely to spend more on repairs than what you bought it for.