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Showing results for tags 'cabrio roof not working'.
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Hi all, bet none of you can help but here goes, I have a 2006 A4 Cabrio which has the following problems, they all happened at once so....1, the boot will only operate using the key, the switch and the fob do not work, I have checked all the wiring from boot to the comfort unit under the passenger seat and all OK, no breaks or shorts, the actuator is functioning as well as all the boot operation micro switches. Have looked inside the comfort unit but nothing obvious and circuitry checks out. 2, The roof does not operate under power, only manually, dash says not available when trying to operate by the switch, I have manually opened and shut the roof several times as some suggest as a fix to no avail. 3, The battery keeps draining. What I have noted is that the power cable to the boot actuator reads short circuit but I do not know if that is the default when not in operation, I have checked the cable run for breaks back to the comfort unit and checked continuity end to end and for shorts with the cable disconnected at each end and this proves OK. I am thinking maybe a relay has broken down the other side of the comfort unit causing the short which is draining the battery, all fuses in the main fuse box are OK. Any suggestions please..
