3315150 - 7030B38 sliding roof drainage pipes (water drain) - check

Removing ( Refitting ) Operate the sun-roof until the slides are fully open.Remove foreign bodies (leaves etc.) from the sun-roof compartment.1. Blow compressed air into the upper ends of the front drainage pipes. 1. Working beneath the front bumpers, disconnect one-way valve (1a) from the lower ends of rear drainage pipes (1b).Blow compressed air into the lower ends of the front drainage pipes. 1. Remove foreign bodies from channels (1a) and drainage holes (1b) in the sun-roof. Refitting ( Removing ) Pour a small amount of water into the channels and drainage holes. Ensure the water comes out of the pipes.Check the one-way valves are working properly.Slide the sun-roof closed.