Hello, my 03 s60 has almost 130,000. I bought it with 124,000 miles on it. Im getting ready to replace the timing belt and the seals and water pump and the tensioners. While im at it i am gonna replace the whole pcv system. I have no idea what the previous owner did to the vehicle so I want to be safe. What other stuff would you recommend for me to do that will protect me in the long run and help prevent expensive repairs? Thank you in advance.

 

Not much. Just use OEM Volvo parts.