MY 2005 SC430 washer reservoir also has a leak. I purchased a replacement reservoir from the dealer- They want $170 to install it. I pulled off most of the left fender well, and candidly became intimidated by all the 'stuff' in there- I've done this before when I was driving Toyotas...
I also would love access to the repair manual..
Chuck, did removing the fender well reveal the reservoir? Is that the way to go? Thanks.
John Billerbeck