To all Z4 owners with a Flashing Red Light on the control panel...............
BMW convertible roofs on the 2004-2008 Z4 are complex in design and function. I have spent over a year rebuilding the roof on our 2004 Z4 2.5. The last issue I have faced was a fully operational roof that would not lock at the front cowl by the windshield or unlock in the back when collasped. The cowl should automatically unlock in the back when closing the roof (of course you can manually unlock the cowl in the back). My problem was the two roof locks (Part# 54347043873/left and Part# 54347043874/right) in the compartment underneath the roof canvas near the windshield. The hooks on the locks (which secure/lock the roof to the windshield frame) need to fully collasped to a L-shape in order for the roof to be fully secured and locked. The hooks on our Z4 would collaspe partially resulting in a flashing red light on the panel and an unsecured roof. The solution was replacing the locks and adjusting the hooks. Problem solved.....
