Product Description

Replace your faulty or crash-affected Safety Information Sensor Control Module (SIM / Airbag ECU) with this OEM BMW unit, part number 6933021, designed for the BMW 7 Series E65 and E66.

This module is a critical component of the Supplemental Restraint System (SRS), responsible for processing crash sensor data and coordinating communication between airbags, seatbelt pretensioners, and other safety systems. A defective unit can trigger airbag warnings and system malfunctions.

Features

• OEM BMW Safety Information Sensor Module / Airbag ECU
• Part Number: 6933021
• Fits BMW 7 Series E65 / E66
• Controls SRS airbag system and crash sensor data
• Manages safety system communication
• Direct OEM replacement unit

Condition

Used / OEM (tested working unless otherwise stated)

Important Notes

• Requires coding/programming to vehicle VIN
• May require BMW ISTA or dealer-level diagnostics
• If crash data is stored, module may require reset or replacement
• Please confirm compatibility before purchase

Common Symptoms Fixed

• Airbag warning light ON
• “Restraint System Malfunction” message
• No communication with SRS system
• Crash data stored after accident
• Diagnostic fault codes related to safety module

Fitment

BMW 7 Series:

• E65
• E66

Tags 

BMW SIM module 6933021, E65 airbag ECU, E66 safety module, BMW SRS control unit, BMW 7 series airbag module, crash data module BMW

Return Policy

Returns are accepted within 14 days of delivery. Items must be returned in the same condition as received and in the original packaging.

The buyer is responsible for return shipping costs.

Any customs fees, taxes, or import duties are the responsibility of the buyer.

All parts are used OEM components. We are not responsible for installation issues, coding requirements, or labor costs. Please ensure compatibility with your vehicle before purchasing.