BMW 335i MSD81 ECU Repair | Fixed 2ACC & 2ACB for $20

BMW 335i MSD81 ECU, MSD81 ECU repair, BMW ECU repair, 2ACC, 2ACB, water damaged ECU, BMW 335i ECU, ECU connector replacement, DME repair, BMW N54. In this video, I show how I repaired a water-damaged BMW 335i MSD81 ECU that was causing 2ACC and 2ACB fault codes using a $20 donor ECU from eBay instead of replacing the entire unit. Follow the repair process step by step, from removing the connector to soldering it back onto the original ECU. #bmw #335i #msd81 #ecurepair #cardiagnostics