Hi there I currently have a 2005 Prius Touring with 206,000km I want to keep the Prius going for at least 1mil km if possible but I want to replace all the necessary parts that will go wrong before they actually will, what necessary parts should I replace? And How should I look after the Prius engine properly, changed the oil recently and the coolant converter. The battery look to be fine and it discharges normally.
No one knows what will go wrong. I do not know the scheduled service intervals in the Slovakian Service manual, but here is the US manual. https://www.toyota.com/t3Portal/document/omms-s/05ToyAllMS_MS0012/pdf/51w1smt.pdf On page 22 of the PDF, page 19 of the manual, it lists the 120,000 mile service. (193,000 km) which recently passed and should be done now if you haven't. it mentions changing the ATF as an optional service, I would do it, too. (it is also the differential oil, so that is two items in one) If some one has a metric manual, there would be less math in calculating what needs done when.
Keep correct level fresh oil in the engine never let it go below the full line and fresh atf and the engine will be fine. Its the hybrid battery that will soon be an issue at that age I can imagine a new hybrid battery will be difficult to find in Slovakia. If that battery is ok now you can buy a charger/discharger and extend its life. But sooner or later the corrosion on that battery will get ugly. You can check the cars complete health by buying a OBD reader that has Techstream Software. Many devices available. Its a necessity if you own a G2. Charger: hybridautomtove.com OBD: Android App with bluetooth, Mini VCI, VXDIAG with Techstream $77 Amamzon.com Use search forum button up top. Search hybrid battery.
unfortunately, you have to wait until they break before you replace them. otherwise, you will be replacing parts prematurely, and wind up having to replace them again. prematurely.
Thank you, thinking of getting a new battery, They sell them over here for about €1500 in Toyota dealership.