BMW ECU Lookup

Identify a BMW's engine control unit (DME petrol / DDE diesel) by VIN or part number. A VIN lookup returns both the engine ECU and the automatic transmission.

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Look up by VIN

Enter the full 17-character VIN — returns the engine ECU and the transmission. Example: WBSKG9C59BE369471

Look up by part number

The 7-digit BMW part number of an ECU (from the control-unit label). Example: 7795188

DDE ECU label, part number 7799856 highlighted

DME ECU label, part number 1430940 highlighted

DME MS41.1 ECU label, part number 1437804

Read the 7-digit number off the ECU label (after DME/DDE, boxed) and enter it without spaces — e.g. 7799856, 1430940, 1437804.