I have a 2002 S430. I recently change the transmission fluid, replace filter, conductor plate, radiator, temp sensor and thermostat. When my car reaches 90c the transmission start slipping and the more I drive it, it would go into limp mode. When I check my dip stick the reading for cold is near the 80c and the reading for hot is near the 25c (In reverse). Have anyone one seen this problem before. When the car reaches 90c to 100c it start straining in sec gear. it use to do it in 2nd and 3rd gear. HELP.