Start Stop / Ignition Control Module
Main OEM Part #: A2139004923

Fit For 2019 Mercedes-Benz E-Class / S-Class / Maybach S-Class

⚠️ Pre-Purchase Reminder

Please double-check your original control unit part number before ordering to avoid mismatch and return issues. Programming is mandatory after installation.

Part Basic Info

Condition: Brand New, Fully Tested
Main OEM Part Number: A2139004923, A2139004923 C, 2139004923
Part Type: Start Stop / Ignition Control Module
Post-Install Requirement: Professional Programming Required

Superseded / Obsolete Interchange Part Numbers

A2139003017, A2139001123, A2139000205,
A2139003710, A2139008520, A2139006633,
A2139002226, A2139003533, A2139005528

Compatible Vehicles

  • 2019 Maybach S-Class S 450
  • 2019 Mercedes-Benz S-Class S 350 L
  • 2019 Mercedes-Benz S-Class S 450 L
  • 2019 Mercedes-Benz E-Class E 200
  • 2019 Mercedes-Benz E-Class E 300
  • 2019 Mercedes-Benz E-Class E 260 (Two Listing Entries)

Product Description & Note

  • This control unit has passed comprehensive full functionality testing before shipment, stable and guaranteed working performance
  • Core module responsible for engine start-stop system logic and ignition related control management
  • Solves start-stop system malfunction, no-start issues, related dashboard warning codes
  • Direct physical replacement matching original housing and connector layout
  • Mandatory Note: Professional programming / coding procedure is required after installation for proper vehicle operation

Package Includes

1 × Start Stop / Ignition Control Unit (OEM #: A2139004923)