Quote:
Originally Posted by pbonsalb
At 90k miles, the engine ground strap on my winter driven 08M3 is no longer shiny but is intact. I have treated it with deoxit and protectant. My exhaust grounds broke a couple of years ago and I made new ones.
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For $40 it might be worth it to just replace it proactively so you don't get stranded. I was lucky mine failed on my morning commute in my neighborhood (car just died on me while driving and would not restart). I was able to walk back home and get another car without too much delay to my day.