On my wagon with 235,339 miles:

Fan clutch at ~200,000
Ball joints ($800 a side on this year and model)
Water pump (~$750)
EGR valve tube clean out
Tensioner (~$400)

lots of little things but expected with this many miles...
Any history on transmission services? This car has a 30,000 mile service interval for fluids and filters.

good luck.

__________________
dtf
1994 E320 Wagon (Died @ 308,669 miles)
1995 E300 Diesel (228,000)
1999 E300 Turbodiesel ( died @ 255,000)
2006 Toyota Tundra SR5 AC 4X4 (115,000 miles) rusted frame - sold to chop shop
2011 Audi A4 Avant (165,000 miles) Seized engine - donated to Salvation Army
BMW 330 xi 6 speed manual (175,034 miles)
2014 E350 4Matic Wagon 128,000 miles
2018 Dodge Ram 21,000 miles