big white tank is winshield washer fluid with a plastic cap on top of it. Small brown tank (clear but stained) is the radiator fluid (antifreeze) there should be a cap with a number engraved on it on top of it.
Shaking speedometer sometimes means that your missing some teeth on the cable cog, mine has been doing it for awhile now.

is the parking light, I believe this option changes depending on country.
You can order the CD for this car here at the partshop page or get a Haynes manual which isn't as detailed.

Welcome to the Shop by the way!