Mercedes-Benz is known for its luxury vehicles, and the GLA is no exception. This compact crossover SUV offers a comfortable ride and impressive performance, making it a popular choice for many drivers. However, to ensure the safety and performance of any vehicle, it is essential to monitor the tire pressure. In this article, we will discuss how the 2017 Mercedes GLA tire pressure monitoring system (TPMS) works, how to reset it, the benefits of TPMS, and how to maintain it.
What is TPMS?
TPMS is an electronic system that monitors the tire pressure and alerts the driver if the pressure is too low or too high. The system uses sensors to measure the air pressure inside the tires and sends the data to the vehicle’s computer. The driver is then notified of any issues with the tire pressure through a warning light on the dashboard.
How Does the TPMS Work in Mercedes GLA?
The TPMS system in the 2017 Mercedes GLA consists of four main components: the sensors, receiver, control module, and display panel. The sensors are installed inside each tire and are responsible for measuring the tire pressure. The receiver collects the data from the sensors and sends it to the control module, which processes the information and sends it to the display panel.
Sensor placement and operation in Mercedes GLA are straightforward. The sensors are installed inside each tire’s air valve stem and measure the tire pressure every few seconds. If the tire pressure drops below a certain threshold, the sensor sends a signal to the receiver, which sends the data to the control module. The control module then activates the TPMS warning light on the dashboard to alert the driver.
The display panel in the Mercedes GLA provides detailed information about the tire pressure, including the pressure in each tire, the overall tire pressure, and the temperature.
How to Reset Mercedes TPMS:
Make sure each tire is at the correct tire pressure before resetting the TPMS.
Start the car.
Use the right arrow on the steering wheel to scroll over and select SERVICE.
Scroll down and select TIRE PRESSURE.
The current pressures will show up, scroll down and select OK.
Screen will read “Tire Press. Monitor Restarted”.
When to Reset Mercedes GLA TPMS:
When a tire or wheel has been replaced or repaired.
When the tire pressure has been adjusted
When a sensor has been replaced or serviced
When the TPMS warning light is illuminated and the tires are properly inflated
After tire rotation
When switching between summer and winter tires
When the vehicle’s computer system has been reset or updated
When the TPMS has been manually disabled and needs to be re-enabled
How to Maintain the TPMS System in Mercedes GLA
To ensure the proper operation of the TPMS system in your Mercedes GLA, regular check-ups are necessary. Check the tire pressure at least once a month using a tire pressure gauge and adjust it to the recommended level as specified in the owner’s manual or on the driver’s side door jamb.
It is also essential to check the sensor batteries periodically. The battery life of TPMS sensors can vary, but they generally last between five and ten years. If a sensor battery is low, it will need to be replaced. The only way to test TPMS battery life is by using a TPMS tool like this one, or by bringing your car to a mechanic and letting them test each sensor.
Causes for Tire Pressure Light to Turn On:
Faulty sensors: The TPMS sensors can fail due to a dead battery or other issues, which can cause the warning light to illuminate.
Low tire pressure: The most common reason for the TPMS warning light to come on is low tire pressure, which can be caused by a puncture, leak, or a drop in temperature.
Sensor placement: If a sensor is not installed properly or is located in the wrong position, it may not be able to communicate with the vehicle’s computer system, causing the warning light to turn on.
System malfunction: The TPMS system may malfunction due to a software glitch or hardware failure, which can cause the warning light to stay on even if the tires are properly inflated.
Incorrect tire size: If the tires on the vehicle are not the correct size or type, the TPMS may not be able to accurately measure the tire pressure, leading to false warnings.
Electrical issues: Electrical issues in the vehicle, such as a blown fuse or wiring problem, can cause the TPMS warning light to turn on.
Benefits of Mercedes GLA TPMS
Improved fuel efficiency: Properly inflated tires reduce rolling resistance, which helps to improve fuel economy.
Enhanced safety: TPMS helps prevent tire blowouts, which can lead to loss of control and accidents.
Extended tire life: TPMS helps to ensure that tires are inflated to the correct pressure, which can extend their lifespan.
Reduced maintenance costs: TPMS helps to identify tire issues early, which can reduce the need for expensive repairs or replacements.
Increased driving comfort: Properly inflated tires provide a smoother and more comfortable ride.
Real-time monitoring: Mercedes TPMS provides real-time monitoring of tire pressure, allowing drivers to quickly identify and address issues.
Easy-to-use system: Mercedes TPMS is easy to use and provides clear and simple instructions for resetting or recalibrating the system.
Environmental benefits: Properly inflated tires reduce CO2 emissions and help to protect the environment.
Conclusion
In conclusion, the TPMS system in the 2017 Mercedes GLA is an essential safety feature that helps ensure the proper inflation of tires. By monitoring tire pressure, TPMS can improve safety, fuel efficiency, and tire life. Regular maintenance of the TPMS system, such as checking tire pressure and sensor batteries, is necessary to ensure proper operation. If you experience any issues with your TPMS system, it is essential to take your vehicle to a certified technician for diagnosis and repair.
FAQ
Q: How often should I check the tire pressure in my Mercedes GLA?
It is recommended to check the tire pressure at least once a month. We recommend weekly.
Q: Can I disable the TPMS system in my Mercedes GLA?
Disabling the TPMS system is not recommended, as it is an essential safety feature. Technically you cannot disable the TPMS without causing the light on the dashboard to stay permanently on.
Q: What should I do if the TPMS warning light comes on?
Check the tire pressure and adjust it if necessary. If the light remains on, take the vehicle to a certified technician for diagnosis and repair.
Q: How long do TPMS sensors last? TPMS sensors can last between five and ten years, depending on the manufacturer.
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