Skodamarvell

Hi,I'm suffering this warning light being on firstly the first link about the break peddle switch in the above post is dead. Since I'm posting I'll ask this anyway, my high centre break light is still working it's just the left/right lamps that are not, would this still be the break peddle switch?

I have the estate and have a leak in the back and I'm having trouble locating it. The seals around the rear screen seem dry after a heavy downpore yet a pool of water collects under the carpet ..anyone have any tips