W123 water drain under middle windscreen wiper

This is a spare part for the middle wiper. You will find it on the inside of the cover plate in front of the windscreen, where the wiper shaft passes through.  The rainwater is thus directed into the drain and does not end up in the heater fan box. A 20-30cm long piece of garden hose (approx. 12 mm inner diameter) must be pushed on. I attached it to the cover plate with sikaflex.