2016 BMW 340i Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your 2016 BMW 340i and How to Resolve Them

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Reviewed by
Andrew Hajjar
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 2016 BMW 340i 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 tire 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 2016 BMW 340i 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.

How to diagnose a tire pressure warning light in a 2016 BMW 340i?

To effectively diagnose a tire pressure warning light in your 2016 BMW 340i, begin by checking the air pressure in all tires, as low pressure is the most common cause of this warning. Use a reliable tire pressure gauge to ensure each tire is inflated to the manufacturer's recommended levels, which you can find in the owner's manual. If the light remains illuminated after correcting any low pressures, it may indicate a malfunction with the tire pressure sensors or the control module. In such cases, utilizing diagnostic tools like the Carly OBD diagnostic tool can provide valuable insights by monitoring live data and identifying specific issues. By following this structured approach, you can efficiently troubleshoot the warning light and ensure your vehicle's safety and performance.

What could cause the tire pressure warning light to remain on in a 2016 BMW 340i?

When the tire pressure warning light stays on in your 2016 BMW 340i, it’s crucial to identify the underlying issues to maintain your vehicle's safety and performance. One common reason for this warning is ambient temperature fluctuations, which can cause tire pressure to drop or rise unexpectedly, triggering the light even if the tires are properly inflated. Additionally, over-inflation of tires can also illuminate the warning, so it’s important to regularly check that your tire pressure aligns with the manufacturer's specifications. Sensor-related problems are another frequent culprit; aging or damaged tire pressure sensors may fail to provide accurate readings, resulting in the warning light remaining on. If you've recently changed or rotated your tires, remember to reset the Tire Pressure Monitoring System (TPMS), as neglecting this step can keep the warning light active. In some instances, the TPMS may malfunction, requiring a relearn or reset to resolve the issue. By understanding these common problems, you can effectively troubleshoot the situation and ensure your BMW 340i operates safely and efficiently.

What immediate steps should be taken to address the tire pressure warning light on a 2016 BMW 340i?

When the tire pressure warning light illuminates on your 2016 BMW 340i, it is crucial to act swiftly to avoid potential safety hazards and further damage to your vehicle. Begin by safely pulling over to inspect your tires for any visible signs of a flat or significant pressure drop. If you notice only a minor loss, proceed cautiously to the nearest service station to inflate your tires. Utilize a tire pressure gauge to check the air pressure in all tires, ensuring they align with the recommended specifications found in your owner's manual or on the placard located on the driver's side door frame. If any tire is under-inflated, adjust the pressure accordingly. Once you have filled the tires, it is essential to reset the tire pressure monitor to clear the warning light. This can be done through the vehicle's menu system, ensuring that the monitor accurately reflects the new tire pressures. Neglecting these steps can lead to compromised handling, increased tire wear, and even blowouts, making it imperative to address the warning light promptly. If the warning persists after these actions, seeking professional assistance is advisable to prevent further complications.

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