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Description
Genuine OEM Mercedes-Benz E320 Engine Control Unit ECU
This is an original Mercedes-Benz Engine Control Unit (ECU/ECM) for the Mercedes-Benz E-Class W211, including selected E320 applications from 2007–2009.
This is a used OEM Mercedes-Benz engine computer, removed from a working vehicle and in good working condition at the time of removal.
Part Number
- A6421504900
Please compare the part number on your original ECU before purchasing.
Compatible Vehicles
- 2007 Mercedes-Benz E320 W211
- 2008 Mercedes-Benz E320 W211
- 2009 Mercedes-Benz E320 W211
- Selected W211 applications using the same part number
Important: Compatibility may vary depending on model year, engine, vehicle options, electrical configuration, and software. Please match your original part number carefully.
Item Features
- Genuine Mercedes-Benz OEM
- Engine Control Unit / ECU / ECM
- Original factory unit
- Used OEM replacement part
- Removed from a working vehicle
- Good working condition when removed
- Original connectors and housing
- Part Number: A6421504900
Condition
Used – Good Working Condition
This is a used OEM electronic module and may have normal signs of previous use, such as minor scratches, marks, dust, or cosmetic wear.
The unit was removed from a working vehicle and was in good working condition at the time of removal.
Important Information
- Please compare the part number with your original ECU before ordering.
- Check the connectors, housing, label, and physical appearance.
- Vehicle model and year alone do not guarantee compatibility.
- This ECU may require coding, programming, synchronization, or adaptation after installation.
- We only sell the part and do not provide programming or coding services.
- Professional Mercedes-Benz installation and programming are recommended.
Before Purchasing
Please make sure your original ECU part number matches A6421504900.
If you are unsure about compatibility, please send us:
- Your old ECU part number
- Clear pictures of your original ECU
- Vehicle model and year
- VIN, if available
We can help you compare the part before purchase.
What you see in the listing photos is what you will receive, unless otherwise stated.
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Returns:
14-day return policy. Please contact us before sending anything back.
Feedback:
Your positive feedback is appreciated.
If any issue comes up, please contact us first — we will resolve it quickly and professionally.🌍 Customs & Import Charges
Customs duties, import taxes, and other fees are not included in the price or shipping cost. These are the buyer’s responsibility.









