2017 BMW 550i GT XDrive Heater Isn't Working

Common Causes of Heater Issues in Your 2017 BMW 550i GT xDrive and How to Resolve Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
31% chance it's the
Heater Blower Motor
0%
18% chance it's the
Heater Blower Motor Resistor
0%
51% chance it's
Something else
The most common reasons a 2017 BMW 550i GT xDrive heater isn't working are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.
  • Heater Blower Motor: A faulty heater blower motor can result in inadequate airflow or no air circulation in the cabin, affecting the heating system's performance.
  • Heater Blower Motor Resistor: A faulty heater blower motor resistor can cause inconsistent fan speeds or complete failure of the blower motor.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the steps to diagnose the heater issue in a 2017 BMW 550i GT xDrive?

To effectively diagnose a heater issue in your 2017 BMW 550i GT xDrive, start by checking the thermostat, as it plays a crucial role in regulating engine temperature and heat output. Next, inspect the coolant levels; low coolant can significantly impact heating performance. If the coolant is adequate, examine the heater core for clogs or leaks that may hinder heat circulation. Following this, assess the heater control valve to ensure it is functioning properly, allowing hot coolant to flow into the heater core. It's also essential to test the blower motor to confirm it is blowing warm air into the cabin. Additionally, check for air pockets in the cooling system, as these can obstruct coolant flow and heat. Look for any leaks in the cooling system that could be causing a loss of heat, and finally, use a diagnostic scanner to check for error codes related to the heating system. By following this structured approach, you can efficiently identify and resolve heater issues in your vehicle.

What are the common problems that could cause the heater to stop working in a 2017 BMW 550i GT xDrive?

When your 2017 BMW 550i GT xDrive's heater stops working, it can be frustrating, but understanding the common problems can help you troubleshoot the issue. One of the primary culprits is a faulty thermostat, which can prevent the engine from reaching the optimal temperature needed for the heater to function properly. Additionally, low coolant levels can significantly impact the heater's performance, as the system relies on adequate coolant circulation to generate heat. Another potential issue is the heater core, which may become clogged or develop leaks, leading to insufficient heat in the cabin. Furthermore, a malfunctioning blower motor can hinder the distribution of warm air, leaving you with a chilly interior. Lastly, electrical problems, such as blown fuses or damaged wiring, can disrupt the heater's operation altogether. By identifying these common issues, you can take the first steps toward diagnosing and potentially resolving the heater problem in your BMW.

How urgent is it to address the non-functioning heater in a 2017 BMW 550i GT xDrive?

When it comes to a non-functioning heater in your 2017 BMW 550i GT xDrive, the urgency of addressing the issue cannot be overstated. A malfunctioning heater not only diminishes the comfort of you and your passengers during cold weather but also poses significant safety risks. Without a working heater, defrosting your windows becomes a challenge, severely impacting visibility and increasing the likelihood of accidents in winter conditions. Moreover, neglecting this issue can lead to more severe complications within the vehicle's heating system, potentially resulting in costly repairs that could have been avoided with prompt attention. Therefore, it is crucial to prioritize the inspection and repair of your heater, ideally by a qualified mechanic, to ensure that your vehicle remains safe and comfortable for all occupants. Taking swift action will not only enhance your driving experience but also prevent further damage to your vehicle.

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