So I just hit 100K miles with my 01 A4 1.8T. The timing belt was replaced around 85K miles and the clutch and flywheel were replaced around 90K miles with a lightweight racing flywheel and stage II clutch. The water pump was replaced while they were in with the timing belt and engine sludge was addressed. As far as I am concerned, what should I be looking at replacing? I figure oil change, spark plugs, wires,air filter... anything else?

 

No wires to replace, if you are due for an oil change then go for it along with air/oil filters. Might be a good mile marker to flush your brake/power steering fluid. Check over the car for leaks, etc. Also consider changing your tranny/differential fluids.

 

Oil Change
Plugs
Air filter - clean/oil or replace with a k&N panel if your still on paper
change brake fluid (every 2 years is the official time frame)
Inspect all fluids
grease sunroof track
check brake pads/rotors

That should pretty much do it for you.

 

how much does it cost to change diff. fluid and brake fluid? if i bought seafoam how much would a mechanic charge for labor?