Dme Bmw N55

Didn't sit right and pricey so towed back home to start investigating ourselves. So problem seemed to be that with no communication with DME and no power at fuses 37,38,39 something is wrong in DME relay circuit up so worked through those circuits. So we: Replaced battery to brand new BMW battery so that part should be ok.

The ECU are correctly connecty and responding but cant code the EWS. To do this i use the replacement procedure use by BMW, select DME and execute the operation but the engine didnt run & stay with "DME data record ; Variant monitoring" So i swap the FME with the new key, engine start but i dont have the right VIN/KM and nothing work. E83 EWS - DME Sync | BMW Forum - BimmerFest BMW Forums

E92 335i Possible Fried DME / Electrical Issue - BimmerFest BMW Forum MSN: BMW 135i with N55 Engine: A Performance Bargain on the Used Market BMW 135i with N55 Engine: A Performance Bargain on the Used Market

The BMW N55 family of engines were released for the 2009 model year, coming in to replace the ageing and troublesome N54 series. At the time, where the competition was busy chasing the highest ... Could be a bad DME, bad wiring, missing supply or ground.

The answer below the codes states that the valvetronic motor killed the DME output but I don't think that's the case since there is another message stating that the position sensor isn't readable, which is not related to the motor issue. Plus the DME outputs are well protected. Also no message from instrument cluster is interesting ...