OK...I replaced the way worn down voltage regulator on my 91 300E alternator (I don't think it was ever replaced! One brush was half as short as the other brush and worn down past the little emblem on it). So far the idle while in drive has been perfect where it was a little rough (from one of my earlier posts) so I hope that stays now. However, the SRS light has been coming on and off way more now since I replaced it (before...a couple times per drive). I'm still waiting on a new OVP and hope that will fix it but if not, what do I need to check on next. I did read that there are some contacts behind the sterring wheel that I can spray with some contact cleaner but it does not happen when I'm turning, only driving straight down the highway with just myself in the vehicle. It comes on for a few seconds then turns off. Sometimes a little longer, sometimes a little less.