Genuine 12 90 1 438 023 E-Box Cooling Fan for Control Unit Housing

The Genuine BMW E-Box Fan (part number 12 90 1 438 023) is a precision-engineered blower motor designed specifically for the electronic control unit housing in BMW vehicles. This critical component provides active cooling to the E-Box, which houses the engine control module (DME), relays, and fuses in the engine compartment.

Key Features:

• Direct OEM replacement blower motor for BMW control unit housing
• Provides essential cooling to prevent DME and electronic component overheating
• Operates quietly and efficiently to maintain optimal temperatures
• Manufactured to strict BMW factory specifications with high-quality materials
• Direct fit installation with no modifications required
• Genuine BMW part ensuring perfect compatibility and reliability

The E-Box fan is mounted to the electronic control unit housing and feeds air through the DME cooling shroud to maintain proper operating temperatures for critical electronic systems. Failure of this fan can lead to DME overheating and potential system failures. Common symptoms of a failing E-Box fan include scraping or grinding noises from under the left side of the instrument panel or dashboard area. This genuine BMW replacement ensures your vehicle's electronic control systems remain properly cooled for optimal performance and longevity.

Alternate Part Numbers: 12-90-1-438-023, 12.90.1.438.023, 12901438023, 12900304810