Fill the rad under the engine cover (raise passenger seat), also make sure the overflow tank is to the correct level.
Brake fluid inside drivers door end of dash.
Yes red one gearbox dip stick, check with the engine up to temp and running.
Steering may do that on full lock, look for the end stops may be missing rubber covers, else don't turn it that far.
Engine stopping clunk probably exhaust banging somewhere, nothing to worry about maybe due to worn exhaust and or engine mounts.
Front washer filler in passenger door step.