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Today we're trying to fix the 30BB fault code on my 335i by replacing the mosfets on my MSD80 DME with the upgraded units. This is a common failure on 335i's produced between 2007-2008, and causes misfires on 3 cylinders and an internal fault code (either 30BA or 30BB).
This repair is easily done at home, or you can have a electronic repair shop do the work for you, but as we can see from my experience, results are not guaranteed! Now I'm left scratching my head, and wondering what the next step is. Stay tuned to find out what we do next!
Links below to the supplies used in this video.
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Note: This video description contains affiliate links. If you click on one of them and make a purchase, I may receive a commission. This occurs at no extra cost to you, but helps keep the channel going!
Upgraded FDB14N30 Mosfets - amzn.to/3zSK0VE (affiliate)
Hot Air Rework Station - amzn.to/2Y2g4c5 (affiliate)
63/37 Solder Paste - amzn.to/3kSFz8Z (affiliate)