2018 Mercedes-Benz Sprinter 3500 Tire Pressure Warning Light Stays On

Tire Pressure Warning Light in 2018 Mercedes-Benz Sprinter 3500: Causes and Solutions

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Reviewed by
Bo Fader
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 2018 Mercedes-Benz Sprinter 3500 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 2018 Mercedes-Benz Sprinter 3500 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 steps should I take to diagnose the tire pressure warning light issue in my 2018 Mercedes-Benz Sprinter 3500?

To effectively diagnose the tire pressure warning light issue in your 2018 Mercedes-Benz Sprinter 3500, begin with a thorough check of the tire pressure in all four tires using a reliable tire pressure gauge. It's crucial to ensure that the pressure aligns with the recommended levels found in your vehicle's manual, as incorrect pressure can trigger the warning light. Next, conduct a visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges, and look for any foreign objects that may be lodged in the tread, which could lead to air leaks. If the tire pressure is correct and the tires appear undamaged, consider resetting the tire pressure monitoring system (TPMS), as it may require recalibration. Refer to your vehicle's manual for specific instructions on how to perform this reset. If these steps do not resolve the warning light issue, it is advisable to consult a professional mechanic or an authorized Mercedes-Benz service center, as they possess the specialized tools and expertise necessary for accurate diagnosis and repair of TPMS-related problems. By following this diagnostic approach, you can systematically address the tire pressure warning light and maintain your vehicle's safety and performance.

What could cause the tire pressure warning light to stay on in a 2018 Mercedes-Benz Sprinter 3500?

When the tire pressure warning light stays on in a 2018 Mercedes-Benz Sprinter 3500, it is essential to understand the common problems that could be causing this issue to effectively troubleshoot and resolve it. The most prevalent reason for the warning light to remain illuminated is low tire pressure, which can be easily checked using a tire pressure gauge. Ensuring that all tires are inflated to the manufacturer's recommended levels is vital for both safety and performance. If tire pressure is not the issue, a faulty tire pressure sensor may be to blame, and replacing this sensor could restore proper functionality. Additionally, if the vehicle has undergone recent tire changes or rotations, the sensors might require recalibration to ensure accurate readings. Electrical faults within the tire pressure monitoring system can also lead to the warning light staying on, which may necessitate diagnostic testing to identify the specific problem. Lastly, a malfunction within the monitoring system itself could be the culprit, requiring professional inspection to diagnose and fix. By methodically assessing these potential causes, you can address the persistent tire pressure warning light and maintain the safety and reliability of your vehicle.

How urgent is it to address the tire pressure warning light that stays on in a 2018 Mercedes-Benz Sprinter 3500?

Addressing the tire pressure warning light that remains illuminated in your 2018 Mercedes-Benz Sprinter 3500 is not just a matter of convenience; it is a critical safety issue that demands immediate attention. Ignoring this warning can lead to severe consequences, including compromised vehicle handling and increased risk of accidents due to poor traction and braking performance. Additionally, driving on underinflated tires can accelerate tire wear, leading to costly replacements and the potential for dangerous blowouts while on the road. Furthermore, neglecting to maintain proper tire pressure can significantly impact your vehicle's fuel efficiency, resulting in higher fuel costs over time. Therefore, it is essential to check your tire pressure regularly, inflate your tires to the manufacturer-recommended levels, and investigate any underlying issues with the tire pressure monitoring system. Taking these proactive steps not only enhances your safety but also ensures the longevity and performance of your vehicle.

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