We don't have a lot of Lexus RX 350 cooling system problems on file — feel free to add yours here. The most common RX 350 cooling system problems cost $1,100 to fix & occur at 46,000 miles. Click on a year below.

Worst Cooling System Problems
water pump leak 2007 Lexus RX 350
water pump leaking 2009 Lexus RX 350
radiator filler neck cracked 2007 Lexus RX 350