2013 128 Convertible (E88) exhibits an intermittent rattle in the right rear quarter area. Scan with Schwaben tool reads DTC A688/Not Present. CVM: “Fault in coding data” and DTC A692/Not Present. CVM: “Hall sensor, convertible-top compartment lid locked.” CVM has tested good. Seems to be a problem with confirmation of the lid locking sequence since it only rattles on occasion. Mechanism works perfectly otherwise. Where to look next? Thanks!
Hello, I have seen these codes appear a lot without there actually being an issue present. The first thing I would do is try to locate the source of the rattle. I would also look at the date screen where it shows the status of all of the switches. Make sure that all of the status actually match the top position, I would try this while the rattle is there. Is there an accident history on the vehicle? In my experience convertible top issues on the 1 series are not common. Please let me know what you find. Thank you.