How to Reset and Relearn the TPMS of Mercedes-Benz CLS CLASS in All Generations

How to Reset and Relearn the TPMS of Mercedes-Benz CLS CLASS in All Generations

Learn how to reset and relearn the Tire Pressure Monitoring System (TPMS) in all generations of the Mercedes-Benz CLS Class. This comprehensive guide covers the importance of TPMS, when to reset it, and step-by-step procedures for each generation (2004-present). Ensure optimal tire performance, safety, and fuel efficiency by maintaining correct tire pressure. Troubleshoot common TPMS issues and discover the advanced technology behind Mercedes-Benz’s TPMS. Keep your vehicle safe and efficient with our expert tips!

The Mercedes-Benz CLS Class is known for its sleek design and advanced technology, including the Tire Pressure Monitoring System (TPMS). This system ensures optimal tire performance and safety by alerting drivers to changes in tire pressure. However, after tire maintenance or replacement, you may need to reset and relearn the TPMS. This comprehensive guide will walk you through the process for all generations of the Mercedes-Benz CLS Class.

Understanding TPMS in Mercedes-Benz CLS Class

Before diving into the reset procedures, it’s essential to understand what TPMS is and why it’s crucial for your vehicle.

What is TPMS?

TPMS is a safety feature that monitors the air pressure inside the tires. It uses sensors to detect changes in tire pressure and alerts the driver when the pressure falls below the recommended level. This system has been mandatory equipment on new vehicles since 2007.

Importance of TPMS

Proper tire pressure is crucial for:

• Optimal fuel efficiency
• Even tire wear
• Better handling and stability
• Reduced risk of tire failure

When to Reset TPMS in Mercedes-Benz CLS Class

You should reset your TPMS under the following circumstances:

• After rotating tires
• When replacing one or more tires
• After adjusting tire pressure
• When the TPMS warning light remains on after inflating tires to the correct pressure

General TPMS Reset Procedure for Mercedes-Benz CLS Class

While the exact procedure may vary slightly between generations, here’s a general guide that applies to most Mercedes-Benz CLS Class models:

1. Ensure all tires are inflated to the pressure listed on the tire placard, usually found on the driver’s side door jamb.
2. Turn the ignition to the “ON” position without starting the engine.
3. Use the steering wheel buttons to navigate to the “Service” menu in the instrument cluster display.
4. Select “Tire Pressure” from the menu.
5. Press and hold the “OK” button until you see a message asking to use current pressures as new reference values.
6. Confirm by pressing “OK” again.
7. You should see a message indicating that the Tire Pressure Monitor has been restarted.

After completing these steps, you’ll need to drive the vehicle for about 10-15 minutes at speeds above 15 mph for the system to fully relearn the new tire pressures.

TPMS Reset Procedures for Specific CLS Class Generations

Let’s break down the reset procedures for different generations of the Mercedes-Benz CLS Class.

First Generation CLS Class (2004-2010)

For the first generation CLS Class, follow these steps:

1. Ensure all tires are properly inflated.
2. Turn the ignition to the “ON” position.
3. Press the ◄ or ► button on the multifunction steering wheel to select the “Service” menu.
4. Press the ▼ or ▲ button to select “Tire Pressure.”
5. Press the “OK” button to confirm.
6. Press the ▼ button to select “Use Current Pressures as New Reference Values.”
7. Press “OK” to store the current tire pressures as reference values.

Second Generation CLS Class (2011-2018)

For the second generation, the process is similar:

1. Inflate all tires to the recommended pressure.
2. Switch on the ignition.
3. Use the steering wheel buttons to navigate to “Service” in the instrument cluster.
4. Select “Tire Pressure.”
5. Press the “OK” button.
6. Select “Use Current Pressures as New Reference Values.”
7. Confirm by pressing “OK.”

Third Generation CLS Class (2019-Present)

The latest generation of CLS Class uses the MBUX (Mercedes-Benz User Experience) system. Here’s how to reset the TPMS:

1. Ensure correct tire inflation.
2. Turn on the ignition.
3. On the touchscreen or using the touchpad, navigate to “Vehicle.”
4. Select “Tire Pressure Monitoring.”
5. Choose “Restart Tire Pressure Monitor.”
6. Confirm the action when prompted.

TPMS Relearn Process

After resetting the TPMS, the system needs to relearn the new tire pressures. This process is automatic in Mercedes-Benz vehicles:

1. Drive the vehicle for at least 10 minutes at speeds above 15 mph.
2. The system will automatically calibrate and learn the new tire pressures.
3. Once complete, the TPMS light should turn off if all pressures are correct.

Troubleshooting TPMS Issues in Mercedes-Benz CLS Class

If you encounter problems with your TPMS, consider these common issues and solutions:

TPMS Light Stays On After Reset

• Double-check tire pressures and adjust if necessary.
• Ensure you’ve driven the vehicle long enough for the system to relearn.
• Check for faulty TPMS sensors, which may need replacement.

Intermittent TPMS Warnings

• This could be due to temperature fluctuations. Check pressures when tires are cold.
• Look for slow leaks in tires or valve stems.

TPMS Malfunction Indicator

If you see a TPMS malfunction indicator, it could indicate:

• A faulty TPMS sensor
• Low battery in a TPMS sensor
• Issues with the TPMS control module

In these cases, it’s best to consult with a Mercedes-Benz dealership or a qualified mechanic.

Maintaining Your Mercedes-Benz CLS Class TPMS

To ensure your TPMS functions correctly:

• Regularly check tire pressures, at least once a month and before long trips.
• Have TPMS sensors checked during routine maintenance.
• Replace TPMS sensor batteries when they’re low (typically every 5-7 years).
• Be cautious when having tires serviced to avoid damaging TPMS sensors.

The Importance of Proper Tire Pressure

Maintaining correct tire pressure is crucial for several reasons:

TPMS Technology in Mercedes-Benz CLS Class

Mercedes-Benz uses advanced TPMS technology in the CLS Class:

Direct TPMS

The CLS Class employs a direct TPMS, which uses individual sensors in each tire to measure pressure accurately. This system provides real-time data and can detect which specific tire is underinflated.

Integration with Vehicle Systems

The TPMS in the CLS Class is integrated with other vehicle systems, providing:

• Real-time pressure readings in the instrument cluster or infotainment display
• Warnings for both gradual and sudden pressure loss
• Temperature compensation for more accurate readings

Legal Requirements and TPMS

TPMS has been mandatory in the United States since 2007 for all new passenger vehicles. The system must:

• Warn the driver when tire pressure in one or more tires falls 25% below the recommended pressure
• Illuminate a warning light within 20 minutes of detecting low pressure

Mercedes-Benz CLS Class models comply with these regulations and often exceed them in terms of accuracy and response time.

Future of TPMS Technology

As automotive technology advances, TPMS systems are evolving. Future Mercedes-Benz CLS Class models may feature:

• Integration with autonomous driving systems
• Predictive maintenance alerts based on tire wear patterns
• Enhanced connectivity with smartphones for remote monitoring

Conclusion

Understanding how to reset and relearn the TPMS in your Mercedes-Benz CLS Class is crucial for maintaining your vehicle’s safety and performance. By following the procedures outlined in this guide, you can ensure your TPMS functions correctly, providing accurate tire pressure information and peace of mind.

Remember, while the TPMS is an excellent safety feature, it doesn’t replace regular tire maintenance. Always visually inspect your tires and check pressures manually as part of your routine vehicle care. If you encounter persistent issues with your TPMS, don’t hesitate to consult with a Mercedes-Benz professional.

By keeping your TPMS properly calibrated and maintained, you’re not just ensuring the longevity of your tires — you’re contributing to the overall safety and efficiency of your Mercedes-Benz CLS Class.