BMW E46 Convertible - Top Stops Halfway Down - Wiring Repair DIY

The E46 Convertible top closing mechanism (325 and 330 CI) is ultra-expensive to have repaired at the dealer. Some have paid $600 to $1000 to fix this issue. Many owners will share this same common failure eventually. Mine is a 2005 325 CIC.

I put the top up and down every day, several time per day. Over time, the moving parts wear out. Then one day,the top would only go half way down. I had to close it manually before I could drive home after work.

This DIY addresses the common issue where the control wires in the wiring loom that runs along the driver's side headliner eventually bend until they break. This can result in a convertible top that operates only half way and then stops with red lights blinking next to the switches.

Cause: The control unit (CVM) triggers a fault when a broken wire is read as an open circuit or a faulty position sensor. And then everything stops.

For more details on this issue visit: http://forum.e46fanatics.com/showthre...