BMW fault code 0081

Multiple Restraint System

In the multiple restraint system, code 0081 means different things depending on the version of the module in the car. Find your car below; the app shows the right one for yours.

MRS: Sensor for side airbag, left

Module version: Multiple Restraint System (MRS4)

In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006, 5 Series (E39) 1998–2003, X5 (E53) 1999–2006, Z8 (E52) 2000–2003

MRS: Side sensor, door, left

Module version: Multiple Restraint System (MRS4RD)

In: X3 (E83) 2003–2010

MRS: Airbag sensor, door, front left

Module version: Multiple Restraint System (MRS5K)

In: X3 (E83) 2003–2010

Reading and clearing it

Fault code 0081 is a BMW code, stored in the car's multiple restraint system, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.

The multiple restraint system is on: 3 Series (E30), Z1 (E30/Z1), 8 Series (E31), 7 Series (E32), 5 Series (E34), 3 Series (E36), Z3 (E36/7), 7 Series (E38), 5 Series (E39), 3 Series (E46), Z8 (E52), X5 (E53), X3 (E83)

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