Central Electronics Box Fan: Service and Repair

2011 BMW 128i Convertible (E88) L6-3.0L (N51)SECTION Service and Repair



12 90 100 - Replacing fan for electronics box





Necessary preliminary tasks:
- Switch off ignition.
- Follow instructions for disconnecting and connecting battery 12 00 ... Instructions For Disconnecting and Connecting Battery.
- Disconnect battery 61 20 900 Disconnecting and Connecting Battery Negative Lead ground terminal.
- Detach fuse box in passenger compartment and pull back; to do so, refer to Removing fuse box 61 13 050 Removing and Installing/Replacing Fuse Box In Passenger Compartment

Important!
Follow instructions for removing and installing electronic control units Service and Repair.





Pull back carpet.
Release lower nut on fuse carrier holder.
Pull holder slightly towards front.





Disconnect plug connections for fan motor (1).
Release screws (2). Remove fan.





Add final details to vehicle.
Read fault memory.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.