sunroof

The sunroof is not intended to be watertight, the water that gets through is drained by four drain pipes. The front ones are behind the plastic trim on the A pillars, the rear ones behind the C pillar trim and they usually get blocked. Never try to clean them by rodding or blowing into them, they can puncture or separate at the joints. Suck the blockage out of the pipes using a vacuum cleaner instead.