Dealer recall work, caused other issues, not taking responsibility

[Davidf]

Originally Posted by Skyline

A lot of times, when you bring a car to the dealer, and need to do anything to do with coding, they'll bring the whole car up-to-date computer module wise. This can involve several hours sometimes; not with a tech working on it the whole time, just the car going through the process by itself while hooked to the computer. Due to the potential drain on the car's battery, and the requirement to have a stable and proper voltage throughout the process, (to avoid screwing up any of your modules), the procedure is to hook the car to a power source. Some high end battery chargers have a setting to provide this stable voltage source, but you can also buy devices that only provide this stable voltage source (designed exactly for this purpose,) and don't charge batteries. Pretty much an essential for anyone coding or programming a modern BMW. Perhaps your tech did not do this, (being lazy and/or not expecting a long coding time,) and ran your car's battery down. And coding without this stable voltage can do all sorts of potentially permanent harm, especially if the battery is a little weak to begin with.

I agree as I have the BMW software tools and code modules myself. But, I have never done a complete VO level whole car reprogramming and I rely on my battery charger normally. I heard word back from the service advisor and he said the technician is having trouble recalibrating the steering angle sensor. So, it seems I pegged this one. Now the issue is did they damage the sensor or was it coincidental. I did call the parts department and they have two sensors in stock (latest version).

[wsmeyer]

Active Steering
DSC
4x4
Backup camera

Those 4 things trip whenever the battery is disconnected and go away after driving a few blocks.