(10PCS) FDB14N30TM MOSFET N-CH 300V 14A D2PAK 14N30 FDB14N30

These fixed the DME on my 08’ 335i. Definitely take your time when working on any ECU, but this definitely saved me from sending it out to get rebuilt. Watch some videos on how to replace them, and you’ll save yourself a lot of money!

Unfortunately, my DME's 30BB error did not go away even after replacing the mosfets. The mosfets seemed ok to begin with and I did not detect any S/D shorts. I ended up upgrading to a MSD81. Other things that can go wrong with an MSD80 is the controller IC for the injectors which is not so easy to replace. I suspect this was the case with my MSD80. Big thumbs down to BMW for such a crappy product.

These do work but they won’t last long if you have upgraded coils have an mhd tune with the coils selected. The tube increases the voltage on the msd80 dme and blows the midgets first try. I had to upgrade to an msd81 dme which cost about 500$ but it’s worth it. These mosfets got me by for a little while.

This fixed my problem an if I would listen to the mechanic I had spent 2500

Arrived quickly. We used them to repair MSD80. Appears to have worked. Other issues with car in addition to this one before it is fully fixed. If they fail again will update review.

Exact replacement that I needed for my BMW because I was getting misfire on cylinder six which turned out to be a bad MOSFET

Fixed my misfiring issues on the 08 535xi’s outdated dme. Quality transistors and quick shipping.

Fixed my misfire issue in my msd80