If there is a DME fault, your car or truck won't start, the engine light-weight may be on or there will no interaction with the DME. Is DME similar to an ECU? Suggested service to buy will be the testing service. If a repair or replacement is needed after testing, https://bmw-ecu-update80012.dbblog.net/3219246/not-known-details-about-bmw-ecu-bin-files-download