Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
12 90 100 Replacing Fan For Electronics Box
Necessary preliminary tasks:
- Switch off ignition.
- Follow instructions for disconnecting and connecting battery. See 12 00... Instructions For Disconnecting And Connecting Battery .
- Disconnect battery ground terminal.
- Detach fuse box in passenger compartment and pull back; to do so, refer to 61 13 050 REMOVING AND INSTALLING OR REPLACING FUSE BOX IN PASSENGER COMPARTMENT (BUILT AFTER 03/2007) (CONVERTIBLE) or 61 13 050 REMOVING AND INSTALLING OR REPLACING FUSE BOX IN PASSENGER COMPARTMENT (BUILT AFTER 03/2007) (COUPE) .
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.
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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.