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Airbag control module from a BMW 3 Series E46 (1998–2007). This unit manages the deployment logic for all airbag systems in the vehicle, receiving crash sensor data and deciding whether to trigger inflation. Verify OEM codes 8372521, 65778372521, MRSZ2129441, or H4T6L13A9X1 against your original module before ordering to ensure fitment compatibility.
Airbag control module from a BMW 3 Series E46 (1998–2007). This unit manages the deployment logic for all airbag systems in the vehicle, receiving crash sensor data and deciding whether to trigger inflation. Verify OEM codes 8372521, 65778372521, MRSZ2129441, or H4T6L13A9X1 against your original module before ordering to ensure fitment compatibility.
