Quote:
Originally Posted by pbonsalb
My original oil pan plugs were fine on my 08M3 when I replaced them with magnetic ones a few years ago. The car had at least 75k miles at the time and at least 10 oil changes. I changed the plugs only because I wanted to try magnetic plugs. But if you have suffered from hack mechanics working on your car, your plugs’ hex sockets could be stripped or partially stripped.
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sloppy mechanics taking shortcuts at dealerships are more common than one thinks. Often small damages are undetected but they add up over time.