I just bought a used 2007 Gen2 Prius with 178k miles and 1 owner. Cleaned out the AC blower motor fan and the Battery cooling fan myself. Both had tons of dust accumulated. It shows on the CarMax report that previous owner kept regular oil changes from dealership every 5000 miles. when I went to Toyota dealer to get a pre-purchase inspection they said leaked muffler and 12V battery cable is not the correct one (it’s not grounded correctly), and said they don’t know if any flushes have been done with fluids. I’m thinking take care of the battery cable since that’s minor but I don’t know the part or where to get one so I can install it myself. leaked muffler is an issue, but not sure if I can get it repaired or just get it replaced? what should I do with the Fluids? Get them all flushed? already changed engine filter and cabin filter. hybrid battery seems to be working fine.