The best advice you can get is from an experienced auto mechanic who specializes in Peugeot cars. He'll tell you all you need to know about Peugeot 605.
You may call Dr. Kunle Shonaike on 08038292296 or 01-4066030. He's an American trained Auto Mechanic here in Lagos Nigeria and has vast experience on both Asian, European and American cars and trucks. He'll tell you all you need to know.
Goodluck!!!