I've been wanting to check out the wiring harness for a while now with all the things I've been seeing on here about them. Finding the time to do so has been a bit of a challenge though. I'll see how she behaves this week with a full tank from a different gas station first. If this issue seems to get better, I'm still going to check the harness once it gets warmer. Along with welding up my Jerry-rigged exhaust from a couple months back (have a post on that too).

I've had this car for a little over 3 years and it's been nothing but gremlin after gremlin. If I keep this up, the cash I stuck into this car would be enough to buy a brand new E-Class (bit of an exaggeration, but you know what I mean)! Thank you for the advice!