Standard Ignition AX506 HVAC Heater Core Temperature Sensor

HVAC Heater Core Temperature Sensor for BMW

Standard Ignition AX506 is an HVAC heater core temperature sensor used in BMW climate control systems to monitor heater core temperature and support accurate cabin temperature regulation. It features a female rectangular connector with two male pin terminals for a direct electrical interface in the listed BMW applications.

Key Features

• HVAC heater core temperature sensor for BMW heating and air conditioning systems
• Female connector with rectangular shape for a secure plug-in connection
• 2-pin male terminal design for the specified vehicle applications
• Direct-fit replacement for select BMW i3, X1, X2, 3 Series, 5 Series, 7 Series, X3, and M3 models
• Standard Ignition AX506 cross-references Four Seasons 37338 for the same application

Detailed Description

Standard Ignition AX506 is built for BMW HVAC systems that rely on heater core temperature feedback to manage interior heat output. This sensor is listed for a wide range of BMW models, including 2014-2019 BMW i3, 2010-2019 BMW X1, 2018-2019 BMW X2, 2007-2014 BMW 335i, 2008-2013 BMW 128i, 2008-2013 BMW 135i, 2007-2013 BMW 328i, 2004-2011 BMW X3, 2001-2007 BMW 325i, and 2002-2007 BMW 330i. It also fits additional BMW applications such as 750i, 750Li, 760i, 760Li, 745i, 745Li, 323i, 323Ci, 323ti, 328Ci, 328is, 328xi, 330Ci, 330xi, 335d, 335is, 335xi, and M3.

This part number, AX506, also cross-references URO 64116930015 and VEMO V20-72-0103 for the same application. Use it when replacing a failed heater core temperature sensor in BMW climate control service work where accurate temperature input is required.

Common Problems This Part Can Address

• Inconsistent cabin heat output in BMW HVAC systems
• Incorrect heater core temperature readings
• Climate control temperature fluctuations
• Fault codes related to HVAC temperature sensing
• Loss of proper heater regulation in supported BMW models

Installation Notes and Tips

Verify connector style, terminal layout, and vehicle fitment before installation. Standard Ignition AX506 uses a female rectangular connector with two male pin terminals, so the replacement should match the original sensor connection on the vehicle. Confirm the BMW model year and HVAC configuration against the listed applications before service.

Quality Assurance

Standard Ignition supplies automotive electrical and HVAC service parts for OE-style replacement needs. This sensor is listed with established interchange references, including Four Seasons 37338, URO 64116930015, and VEMO V20-72-0103, to support parts matching during repair.