Few questions

[cravin]

It's been a while since I've posted, and just wanted to run a few things by you folks.

First "annoyance". Since it's been rather cold outside, when I drive my car first thing in the morning, when braking or making a sharp turn, I hear a "chirping" sound coming from the front near the windshield. I'm wondering if this has anything to do with the seals on the windshield as the sound is not there at all if the car was in a warm garage or something and also goes away once the car is nice and warm

Secondly, my car threw up a Level Control System Malfunction on the iDrive and dash. Caused the right headlight to flicker and told me to not drive too fast. As soon as the car was shut off and back on, haven't had it come back. While I was getting my brakes done at my mechanic, he checked the codes for me. There were a bunch of power level codes from most of the systems from the time that I ran my battery down while tailgating at a Jets game, but that was months before this happened. The code that was in the Dynamic Stability Control was a 6EC4 steering-angle sensor, adjustment.

Since I confirmed that this is covered under CPO, I took it into the dealership. They checked the codes, and because of all the power faults, blamed it on that, even though the events were months apart. They still dinged me the fee to check everything, and cleared all the faults, and told me to come back if it happens again. Has anyone else had the dealership not research a code because of a dead battery that happened months before?