I just had my 2007 Tucson serviced because the owners manual wanted the transmission fluid changed after 105000 miles. I was charged $775 for this service. Feeling ripped off. He did have to change the transmission cooler because is was leaking. Break down of charges: $220 for transmission cooler part - $220 to remove and replace transmission cooler - atf fluid $119.10 - service kit $31.12 - power flush $73.