Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Variant Code Identification Display
The variant code for a DME M1.X control module can be accessed in three ways:
- Electronically via DISplus or GT1:
- DME Control Module Identification screen
- Select "Programming" then "DME variant code", installed variant code is displayed.
- DME control module variant code label
- SI B13 02 90 (3009)
The quickest and most accurate way to access the variant code of the installed DME is by viewing the DME Identification page using the DISplus or GT1.
If a control module malfunction is suspected cross reference the BMW and Bosch part numbers in the display with the installed variant code. Problems can occur if:
- The correct variant code is installed in the wrong control module.
- An incorrect variant code is installed in the correct control module
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.