54 90 ... Troubleshooting, automatic convertible top

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2010 BMW M6, 2010 BMW 650i, 2009 BMW M6, 2009 BMW 650i, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.

TROUBLESHOOTING CHART

Fault	Cause	Movement	Remedy
Convertible top does not open or close	Battery voltage is < 10.5 V	opening and closing	Charge battery or run engine
	Outside temperature too low or too high	opening and closing	Set outside temperature between -10 °C and +80 °C
	Hydraulic pump motor temperature too high	opening and closing	hydraulic pump motor ≤90 °C
	Terminal R"" not switched on	opening and closing	Switch on terminal R"", check fuse terminal R""
	Convertible top not unlocked	opening and closing	Emergency actuation
	Rear lid not closed	opening and closing	Close rear lid
	Speed > 30 km/h	opening and closing	Slow vehicle down to complete standstill
	Convertible top compartment not completely lowered	opening and closing	Lower convertible top compartment
	Rear window not lowered	opening and closing	Lower rear window completely
	Door windows not lowered	opening	Lower door windows slightly
	Fuses defective	opening and closing	Check fuses
	Leads interrupted	opening and closing	Refer to diagnosis
	Plug connections interrupted	opening and closing	Check plug connections, repair if necessary
	Control unit defective	opening and closing	Refer to diagnosis
	Hall sensor fault	opening and closing	Refer to diagnosis