Water pump coolant leak (gas and hybrid)moderate
The signature gen-4 leak: a pink streak of coolant flung onto the hood underside by the belt, or a reservoir that needs topping up. Cheap to fix ($70–150 part, $200–350 labor) and easy to spot on inspection — which also makes it easy to negotiate on.
Sources: Independent mechanic channel transcripts (4th-gen RAV4)
$70–150
Water pump, parts
$200–350
Labor + coolant