2019 BMW 740e XDrive Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2019 BMW 740e xDrive: Causes and Solutions

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Tire Leaking Air
0%
30% chance it's the
Wheel Leaking Air
0%
15% chance it's the
Tire Pressure Monitoring System
0%
15% chance it's
Something else
The most common reasons a 2019 BMW 740e xDrive tire pressure warning light stays on are a leaking tire, a wheel that no longer holds air, or a faulty tire pressure monitoring system.
  • Tire Leaking Air: A puncture, valve stem issue, or rim damage can cause a tire to leak air, leading to loss of pressure.
  • Wheel Leaking Air: A puncture or damage to the tire or rim can cause air to leak, resulting in a loss of tire pressure.
  • Tire Pressure Monitoring System: A malfunctioning tire pressure monitoring system can be caused by faulty sensors or a dead battery in the sensor units.
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.

How much does it cost to fix a 2019 BMW 740e xDrive tire pressure warning light stays on?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When a tire pressure monitoring sensor fails, the tire pressure monitoring system control module will recognize a loss in communication and turn on the warning lamp which indicates the failure. This is most often the case. However, the tire pressure monitoring sensor may also fail by reporting incorrect tire pressures. This could cause a flat tire to go unrecognized, or a properly inflated tire to signal a low or high tire pressure warning.

When a relearn is needed, for any reason, the TPMS warning light will illuminate, and many vehicles will display a message relating to the TPMS system being inoperative or loosing communication. It is important to keep a watchful eye on tire pressures when this system is having issues because there is no warning available for underinflation or overinflation of the tires.

Wheels offer very few symptoms, but these symptoms should never be ignored. Visible cracks on the wheels may appear, especially after hitting a large bump, Most often, this will also be accompanied by loss of air from the tire on that wheel. Also, vibration in the steering wheel is very common when the tire is out of balance, and improper wheel nuts or bolts can cause creaking and popping noises to develop. Again, there are very few symptoms, but they should not be ignored.

The only symptoms requiring diagnosis for the tire pressure monitoring system warning lamp is if the warning lamp has illuminated while the tires have correct air pressure, or if the air pressure for the tires is out of specification and the warning lamp is off. This is because the overwhelming majority of cases where the TPMS lamp illuminates is due to the change in ambient temperature.

What steps should I take to diagnose the tire pressure warning light issue in my 2019 BMW 740e xDrive?

To effectively diagnose the tire pressure warning light issue in your 2019 BMW 740e xDrive, begin with a straightforward approach that prioritizes simpler solutions before delving into more complex diagnostics. Start by manually checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring that the readings align with the recommended levels found in your vehicle's manual. Next, conduct a visual inspection for any signs of damage, such as punctures or bulges, which could indicate a loss of pressure. If the tires appear intact, proceed to reset the tire pressure monitoring system, as this can often clear false warnings. Additionally, inspect the valve stems for any leaks that might be contributing to the issue. If these initial steps do not resolve the warning light, it may be necessary to consult a mechanic or a BMW dealership for a comprehensive diagnosis, as they possess the specialized tools required to identify more intricate problems. By following this methodical approach, you can efficiently address the tire pressure warning light and ensure your vehicle remains safe and roadworthy.

What could be causing the tire pressure warning light to stay on in a 2019 BMW 740e xDrive?

When the tire pressure warning light remains on in your 2019 BMW 740e xDrive, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is low tire pressure, which is easily checked with a tire pressure gauge. Ensure all tires are inflated to the manufacturer’s recommended levels, as even a slight deficiency can trigger the warning light. If the pressure is adequate, consider the possibility of a faulty tire pressure sensor; these sensors can wear out over time and may need replacement. Additionally, if the sensors have recently been changed or serviced, they might require recalibration to function correctly. Electrical faults within the tire pressure monitoring system can also cause persistent warnings, so a thorough inspection of the wiring and connections may be necessary. Lastly, performing a system reset through the vehicle's onboard computer can sometimes resolve the issue if all else checks out. If the warning light persists after these checks, consulting a certified BMW technician is advisable to diagnose any underlying problems accurately.

How urgent is it to address the tire pressure warning light on a 2019 BMW 740e xDrive?

Addressing the tire pressure warning light on a 2019 BMW 740e xDrive is of utmost urgency due to the significant safety risks and potential vehicle damage associated with neglecting this warning. When the tire pressure is not within the recommended range, it can severely compromise traction and stability, increasing the likelihood of accidents. Moreover, improper tire pressure can lead to uneven tire wear, which not only shortens the lifespan of the tires but also diminishes fuel efficiency, ultimately costing you more in the long run. The Tire Pressure Monitoring System (TPMS) is a critical feature designed to alert drivers to these issues, and ignoring its signals can result in further damage to the tires and overall vehicle performance. BMW emphasizes the importance of regular tire pressure checks to maintain optimal safety and efficiency, making it clear that prompt action is essential. Therefore, if you see the tire pressure warning light, it is crucial to investigate and rectify the issue immediately to ensure a safe and smooth driving experience.

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