SL55/63/65/R230 AMG: Advice
At that mileage, either you get lucky and someone has overhauled all the lines/pump/accumulators, or you're getting someone's problems. Take it to a dealer to do a pre purchase inspection.
I already replaced the trunk struts and will be tackling the soft close lock and 3rd brake light next.
As far as the car itself is concerned, it is absolutely wonderful. More power than I know what to do with (and I'm going to get a tune for it), comfortable, easy to drive - everything I want in a GT car.
Like everyone said ABC the number one thing. PPI should point you to any current issues with it. Repairs with the ABC can run from cheap DIY work to thousands and thousands of dollars. In many cases the later.
With that age you have normal wear items that should be looked like the bushings and ball joints, motor mounts, brakes, etc. All things a good PPI can alert you to.






