This article gives detailed instructions on replacing the general control module (GM3) in an E53 X5. Even though we used a 2005 X5 3.0i to perform this repair, this article can be applied to any 2000-2006 X5 model with minor modifications to the repair steps.
A BMW E53 general control module replacement may be necessary if the key fob or power windows are malfunctioning in your 2000-2006 X5.
The general control module, also known as the "GM3, is an electronic circuit board that controls various interior systems including keyless locking/unlocking of doors, power window operation and interior lighting. It replaced the use of relays by efficiently combining all of the functions into one convenient module. The GM3 in 2000-2005 X5 vehicles is located behind the glovebox on the passenger side of the vehicle.
The GM3 is infamous for failing. The classic symptoms of a defective GM3 are; key fob won't lock or unlock doors, power windows not functioning, or interior lighting malfunction.
Replacing the X5 GM3 is a relatively easy job for the home mechanic and can save a very expensive trip to the dealership. The glove box assembly must be removed from the dashboard to access and remove the GM3. The BMW Repair Guide strongly recommends replacing a failed GM3 with a new unit - avoid purchasing used ones. We give detailed step-by-step instructions on removing the GM3 from your 2000-2005 X5 below.
Fits all BMW E53 X5 vehicles
Always replace your damaged GS3 module with a brand new unit. This is a Genuine BMW factory replacement for your 2000-2006 X5.
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