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Description
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Shipping
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Return Policy
Product Title
BMW 1 Series F20 (Pre-LCI 2011–2014) Airbag SRS Control Module ECU 6857701 – OEM
Product Description
Genuine OEM BMW SRS Airbag Control Module (ACSM/ECU) for BMW 1 Series F20 Pre-LCI models (2011–2014).
Part number 6857701, responsible for managing the vehicle’s restraint system including airbag deployment, crash detection, seatbelt pretensioners, and SRS diagnostics.
This unit is designed for pre-facelift (Pre-LCI) vehicles and may not be compatible with LCI (facelift) models.
This item is used OEM and removed from a working vehicle unless otherwise stated. It may show normal wear consistent with age and use.
Please carefully review all photos before purchase to confirm condition and compatibility.
Compatibility
Vehicle Model
- BMW 1 Series F20 (Hatchback – Pre-LCI)
Model Years
- 2011–2014
Additional Compatible Models (depending on configuration)
- BMW 1 Series F21 (3-door hatchback Pre-LCI)
- Select early BMW 2 Series F22 models (with matching SRS system)
⚠️ Important:
- This module is for Pre-LCI models only
- Not compatible with facelift (LCI 2015+) vehicles unless part number matches exactly
OEM Part Numbers / Cross References
- 6857701
- 34526857701
- 6855995
- 6855993
- 6855994
- 6854638
- 34526855995
Function
This SRS control module manages:
- Airbag deployment (front, side, curtain airbags)
- Seatbelt pretensioners
- Crash sensor processing
- SRS system diagnostics and fault memory
It is a critical safety ECU for BMW occupant protection systems.
Important Notes
- Module may require VIN coding/programming after installation
- May contain stored crash data depending on donor vehicle history
- Must match exact part number for correct operation
- Professional installation and BMW diagnostic tools (ISTA/Autel) strongly recommended
Item Details
- Brand: BMW (OEM)
- Part Number: 6857701
- Type: Airbag Control Module (SRS ECU)
- Condition: Used
Return & Shipping Policy
- Returns accepted within 14 days of delivery
- Item must be returned in original condition and packaging
- Buyer pays return shipping
- Import duties and taxes are buyer’s responsibility
Important Notice
- Used electronic safety component
- We are not responsible for coding, programming, or installation issues
- Always verify compatibility using VIN or part number before purchase
Contact
For VIN compatibility confirmation or technical questions, please message before purchase.













