Standard Ignition AX494 HVAC Heater Core Temperature Sensor

BMW HVAC Heater Core Temperature Sensor

Standard Ignition AX494 is an HVAC heater core temperature sensor with a wire lead terminal type for direct temperature monitoring in the heating and climate control system. It is a fitment-based replacement for select BMW X5 and BMW X6 applications, including models from 2006 through 2018.

Key Features

• HVAC heater core temperature sensor for climate control temperature feedback
• Wire lead terminal type for vehicle-specific electrical connection
• Direct replacement part for select BMW heating and A/C systems
• Standard Ignition AX494 cross-references to OE-style applications
• Fits 2006-2018 BMW X5 and 2008-2018 BMW X6 applications

Detailed Description

Standard Ignition AX494 is built for BMW HVAC systems that rely on accurate heater core temperature input to manage cabin heat output and system response. This sensor is used in select BMW X5 and BMW X6 models, making it a practical replacement when the original heater core temperature sensor is no longer reading correctly. The AX494 part number is also useful for cross-checking service references during diagnosis and ordering.

This part cross-references 64116968175 and TS57621 for the same application. It is a focused replacement for BMW X5 and BMW X6 climate control service where the heater core temperature signal is part of the fault diagnosis.

What It Is Used For

• Restoring heater core temperature signal accuracy
• Addressing inconsistent cabin heat output
• Correcting HVAC temperature control faults tied to sensor input
• Replacing a damaged or failed wire-lead temperature sensor
• Supporting proper climate control operation in BMW X5 and BMW X6 models

Installation Notes and Tips

Verify the connector style and wire lead routing before installation. Confirm the vehicle year and model match the listed fitment for BMW X5 and BMW X6, and compare the original sensor location and terminal configuration to Standard Ignition AX494 before replacement. Use the vehicle service information for access and diagnostic checks.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. AX494 is cataloged for specific BMW HVAC applications and should be matched to the original part number and fitment data before installation.