One problem related to coolant leaking has been reported for the 2005 Toyota Avalon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota Avalon based on all problems reported for the 2005 Avalon.
I purchased this certified used Avalon 04/26/2005 with the certified warranty expiring on 04/26/2012 or 100,000 miles. At 74,000 miles it had to be repaired at findlay Toyota for engine oil leak at timing chain cover. I paid $235. 94, insurance paid $1530. 93. At 99,983 miles the same oil leak had to be repaired again at desert Toyota, scion. They stated "found used cover and upper oil pan has been replaced and not sealed properly, also coolant hoses not sealed properly". For this repair I paid $2957. 23. The car started leaking again at 113,480 miles and is in need of repair again. I don't know what it will cost me this time. Apparently this is a serious problem Toyota had not properly addressed. On Toyota's tis I found TSB eg019-07 that shows Toyota was aware of this issue and never notified it's customers. I should be reimbursed for the previous repair and any additional repairs required to permanently fix this problem. Please help! the vehicle was stationary each time I observed these leaks.