ACM 0155.1058 HVAC Blower Motor Regulator Final Stage Unit

The ACM 0155.1058 Blower Motor Regulator, also known as a Final Stage Unit or Blower Motor Resistor, is a critical component for controlling the HVAC system in BMW vehicles. This electronic control module regulates voltage to the blower motor, enabling precise fan speed control for your vehicle's heating and air conditioning system.

Key Features:

• Controls blower motor speed through pulse-width modulated (PWM) signals for precise airflow management
• Engineered to OEM specifications for reliable performance and proper fitment
• Receives driver input from the HVAC control panel and delivers high-current signals to the blower motor
• Direct replacement for BMW OEM part number 64119276112
• Includes integrated self-diagnostic capabilities
• Designed for installation in the HVAC heater housing below the passenger side dashboard

This regulator is essential for maintaining comfortable cabin temperatures and proper climate control operation. Common symptoms of failure include blower motor stuck at one speed, no airflow from vents, or fluctuating fan speeds. The ACM 0155.1058 is compatible with various BMW 2-Series, 3-Series, 4-Series, M-Series, X5, and X6 models from model years 2013-2021.