Mercedes-Benz OE part numbers are usually 10-digit numeric codes used to identify original components. These numbers follow a consistent structure that can be broken down into parts for better understanding.
Example OE Number: 210 820 02 21
Also commonly written as: A2108200221
1. Structure Breakdown:
The first three digits (e.g., 210) indicate the model series where the part was originally introduced. For example, 210 refers to the W210 E-Class.
The middle three digits (e.g., 820) refer to the main component group, such as lighting, electronics, suspension, etc.
The next two digits (e.g., 02) specify the exact part within that group.
The final two digits (e.g., 21) represent version, supplier variation, or revisions of the part.
2. Example Explanation: A2043304507
204: Refers to W204 C-Class
330: Indicates the brake system category
45: Represents a specific brake-related part
07: Is the version or supplier variant code
3. Common Model Prefix Codes:
124 – W124 E-Class
202 – W202 C-Class
210 – W210 E-Class
211 – W211 E-Class
204 – W204 C-Class
221 – W221 S-Class
164 – X164 GL-Class
4. Common Component Group Codes:
240 – Transmission
320 – Steering
330 – Brake system
350 – Suspension
820 – Electrical components
890 – Air conditioning and HVAC
5. Notes:
A part may start with a certain model code but still fit other Mercedes models.
Variant numbers often indicate differences in suppliers, colors, connectors, or generations.
Always check the OE number and vehicle VIN for accurate part matching, especially when purchasing online.