2014 Mercedes-Benz E250 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2014 Mercedes-Benz E250

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Reviewed by
Devin Cabugcal
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 2014 Mercedes-Benz E250 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 2014 Mercedes-Benz E250 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 of a TPMS control module failure are failing to alert the driver of underinflation or overinflation of one or more tires, failure to communicate with the body control module or TPMS sensors, or erroneously reporting incorrect tire pressure.

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 are the initial steps to diagnose a persistent tire pressure warning light on a 2014 Mercedes-Benz E250?

When faced with a persistent tire pressure warning light on your 2014 Mercedes-Benz E250, the first step is to check the tire pressure across all four tires, ensuring they are inflated to the manufacturer's recommended levels. This is crucial, as low tire pressure is a frequent culprit behind such warnings. Next, visually inspect each tire for any signs of damage or punctures that could lead to air loss. If the tires appear to be in good condition, consider resetting the tire pressure monitoring system, which can often resolve minor glitches. Additionally, examine the tire pressure sensors for any visible damage or malfunction, as faulty sensors can trigger the warning light. If these initial checks do not resolve the issue, using a diagnostic tool to scan for fault codes related to the tire pressure monitoring system can provide deeper insights into the problem. By following this structured approach, you can effectively diagnose and address the tire pressure warning light issue on your vehicle.

What could cause the tire pressure warning light to stay on in a 2014 Mercedes-Benz E250?

When the tire pressure warning light stays on in a 2014 Mercedes-Benz E250, it can indicate several common issues that are manageable for DIY enthusiasts. The most frequent cause is low tire pressure, so the first step is to check and inflate your tires to the recommended levels, which is a simple task that can often resolve the warning light. If the tire pressure is adequate, the next possibility is a faulty tire pressure sensor, which may need to be replaced. Additionally, the tire pressure monitoring system might require recalibration to ensure accurate readings; this can usually be done by following the instructions in your vehicle's manual. It's also important to inspect for any electrical faults, such as loose connections or damaged wiring, as these can trigger the warning light as well. Finally, if no issues are found, performing a system reset may help clear the warning light. By methodically addressing these potential problems, you can effectively troubleshoot and resolve the tire pressure warning light issue in your E250.

How urgent is it to address the tire pressure warning light on a 2014 Mercedes-Benz E250?

Addressing the tire pressure warning light on a 2014 Mercedes-Benz E250 is an urgent matter that should not be overlooked. Ignoring this warning can lead to serious safety risks, as improper tire pressure significantly affects the vehicle's handling and braking capabilities, potentially resulting in dangerous driving conditions. Additionally, neglecting to check and adjust tire pressure can lead to uneven tire wear, which not only shortens the lifespan of your tires but also decreases fuel efficiency, ultimately costing you more in the long run. Furthermore, driving on under-inflated tires increases the likelihood of tire damage, such as blowouts, which can be both hazardous and expensive to repair. To ensure optimal vehicle performance, including improved traction and steering response, it is essential to promptly check and inflate your tires to the recommended levels. Taking these steps not only enhances your safety on the road but also contributes to the longevity and efficiency of your vehicle.

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2014 Mercedes-Benz E250 Tire Pressure Warning Light Guide