BMW GM5 General Module Central Locking Repair Service


MotorTronics provides a prompt test and repair service for your electronic modules, The modules goes through various repair processes to ensure previously faulty parameters are fully repaired, only after this, we pass it and it’s ready for dispatch.

All that is left for you to do is

1. Click Buy it Now / Add to Cart
2. Fill in the Order Form / Packaging Slip provided after the payment page.
3. Send your Module with the Order Form
4. Await repair while we have your part(s)
5. Once received simply Plug it in and turn the key.
6. In some cases you will require diagnostics to adapt / clear codes.


This is a repair service for your BMW GM5 module.

These units are located behind the glove box in E46, E83, X3 and Z4, and next to the CD changer in the Z8. and are responsible for the central locking of your vehicle.

E46 – 3 series 1998-2005
E52 – Z8 (all years)
E83 – X3 2003-2010
E85 – Z4 2002-2008

The internal relays fail which causes all doors to be deadlocked and without getting the module repaired there is no other way to release the locked doors.

Some of the common issues you might experience are

  • Central locking not working.
  • Unresponsive central locking buttons.
  • Locking and unlocking of doors, boot,
  • Door locks making noise but won’t lock.

This repair service replaces the faulty central locking relays with new relays which will restore the central locking in your vehicle.