Hi, I’m looking to upgrade my old diesel Golf and am hoping to part exchange it if I buy from a garage. I’m looking to buy secondhand, a decent make like VW or Volvo, around 6 yrs old with as low mileage as possible.
Mines pretty old (58 plate) and has a few dings, and it’s just developed a knocking sound when I’m steering although this doesn’t affect the actual driving. 
I thought I’d see how much it’d cost to fix up but does anyone know how garages view old cars with not much life left? Is it best to make it look as ‘shiny’ as possible before taking it anywhere or will they just offer me a fixed price anyway and maybe scrap it?
I don’t want to spend loads on it getting scratches fixed and valeting, if that’s a waste of cash!
Thanks 😊