My S2000, since buying it new in 1999, with around 57k miles, has been running great. I installed a supercharger back in 2006. Throughout its life, it has had fluid changes (engine, brakes, radiator, differential, etc), spark plugs, air filter, pcv, cabin filter, etc. I was wondering if anything else should be changed/replaced. Hoses? Engine/diff mounts? Tct? Or should I just keep up regular maintenance and not worry about those things until they go bad? Thanks!

 

Worry about things when they go bad.

One good thing about doing your own routine maintenance, fluid changes etc, is it gives you a chance to get underneath and look things over. Ideally you'll be looking at condition of belt, hoses, etc while under hood, and for anything unusual while underneath. A leak, etc.

Use these opportunities to keep ahead of any issues before they become a problem.

 

Certainly inspect the hoses and brake lines, if you have not been. At 20 years, check if they are cracked or stiff, or too soft, and start replacing with other maintenance.

An engine mount at 20 years could be torn, but is not critical. If the TCT is still working, no worries there.

 

Take a look at your valve cover seals. If there's oil on any of your coil packs then the tube seals are bad and need to be replaced.

 

In Germany, we have a mandatory safety inspection every 2 years. The car is inspected thoroughly, also from the underside. As others mentioned, they look for brake lines and all rubbers - suspension bushings, Motor mounts etc.

Do this, better safe than sorry. And, BTW, today is the day of this inspection for my S2000.

 

I imagine that you stay on top of maintenance for your S2000 so you shouldn't have anything to worry about...?

 

We have the same inspection here in Sweden but every year, it's pretty annoying on a car like this.
To the OP, just keep doing the regular maintenance you mentioned, also don't forget changing the clutch fluid.

 

Thanks all for your advice.

 

Car passed tets today without any Problems.

 

Its good to get up close to the machine that you depend on,
i have a ramp