Component Classification: Airbag Control Module / SRS ECU / Crash Sensor ECU / Steuergerät Airbag / Module de Commande d'Airbag.
Original Equipment Manufacturer: Premium Genuine Original Equipment Manufacturer (OEM) unit manufactured by Bosch for Mercedes-Benz.
Primary Factory Part Numbers & Stamped Identifiers:
Mercedes-Benz Part Number: A2038207385 / 203 820 73 85 / A 203 820 73 85.
Bosch Part Code: 0 285 001 881 / 0285001881.
Donor Vehicle Specifications: Reclaimed from a Mercedes-Benz C-Class (W203).
Cross-Model Fitment Compatibility:
Mercedes-Benz C-Class (W203 / S203 / CL203): C180, C200, C220, C230, C240, C270, C280, C320, C350, C32/C55 AMG (2000–2007).
Mercedes-Benz CLK-Class (W209 / C209): Select early models sharing the same SRS control architecture.
| Component Element | Specifications & Details | Compatibility Info |
| Item Name | SRS Airbag Control Module ECU | Center Console Floor Mount |
| OEM Quality Grade | Authentic Mercedes-Benz / Bosch | High-Precision Crash Sensor Unit |
| MB Part Number | A2038207385 (203 820 73 85) | Stamped on Orange/Silver Label |
| Bosch Part Number | 0 285 001 881 (0285001881) | Factory Bosch Code |
| Connector Type | Yellow Multi-Pin SRS Wiring Plug | Harness Plug Included |
[x] Vehicle Chassis: Mercedes-Benz C-Class W203 / CLK W209
[x] Part Number Match: A2038207385 / 0285001881
[x] Deployment Status: Clean memory, non-accident donor vehicle
[x] Connector Status: Includes intact yellow wiring connector plug and pins
Resolving SRS Light & Airbag System Faults: The SRS airbag ECU controls the deployment of side, curtain, steering wheel, and passenger airbags, as well as seatbelt pretensioners. Replacing a faulty control module resolves persistent SRS warning lights, internal ECU checksum faults (e.g., fault code B1000), or communication error codes.
Installation & Coding Advice: Always disconnect the vehicle battery at least 10–15 minutes before working on any SRS/Airbag components. The module is located beneath the center console transmission tunnel. Installing a replacement module into another vehicle requires diagnostic coding/initialization via STAR / XENTRY software to match the target vehicle's exact VIN and airbag configuration option codes.
🛡️ 30-Day Hardware Guarantee: Backed by a 30-day functional warranty covering ECU board integrity and connector terminal pins.
🌍 Worldwide Tracked Delivery: Fast, fully tracked international air freight delivery with tracking coordinates uploaded upon dispatch.
⚡ Anti-Static & Cushioned Packaging: Electronic control units require static and shock protection. This module will be sealed in an anti-static bag, wrapped in thick bubble cushioning, and shipped inside a rigid corrugated box.
Brand: Mercedes-Benz / Bosch
Type: Airbag Control Module / SRS ECU
Features: OEM Factory Original, Crash Sensor Control, Direct Replacement
Placement on Vehicle: Front, Center Console / Floorboard
Terminal Quantity: Multi-Pin Yellow Socket
Material: Aluminum Housing & Electronic Board
Manufacturer Part Number (MPN): A2038207385 / 2038207385
Interchange Part Number: A2038207385 / 203 820 73 85 / A 203 820 73 85 / Bosch 0285001881 / 0 285 001 881 / W203 Airbag Module / W203 SRS ECU / Steuergerät Airbag
Reference OE/OEM Number: Mercedes C-Class Airbag Sensor / W203 Airbag Control Unit / A2038207385 / Bosch SRS Module W203
Compatible Years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Fitment Type: Direct Replacement
Seller Warranty: 1 Month / 30 Days