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 (N62)
Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION) .
Necessary preliminary tasks:
- Switch off ignition.
- Follow instructions for disconnecting and connecting battery.
- Disconnect battery ground terminal.
- Remove right fresh air duct.
Follow instructions for removing and installing electronic control units. See INSTRUCTIONS FOR REMOVING AND INSTALLING ELECTRONIC CONTROL UNITS .
Release screw (2).
Remove cover (1) of equipment box in direction of arrow towards right.
Installation:
Push on cover (1) of equipment box in direction of arrow towards left into holder (3).
Disconnect plug connections (1 to 6).
Remove Valvetronic control unit, DME and integrated supply module.
Unlock plug connection (3) on fan for electronics box and disconnect.
Release screws (1) on control unit carrier (2).
Remove control unit carrier (2) towards top.
Release screws (1).
Remove fan (2) in direction of arrow.
Check function of DME.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.