Mercedes ABS Fault Codes List: Your Expert Guide

Mercedes-Benz vehicles are renowned for their innovation and advanced technology. However, even these high-performance machines can experience issues. Understanding the Mercedes ABS fault codes list is crucial for both owners and technicians to diagnose and resolve potential problems quickly. This comprehensive guide from CARDIAGTECH.NET will provide you with a detailed overview of common ABS fault codes, their meanings, and potential solutions. Addressing these issues promptly ensures your safety and maintains the optimal performance of your Mercedes-Benz.

1. Understanding ABS and Its Importance

The Anti-lock Braking System (ABS) is a critical safety feature in modern vehicles, including Mercedes-Benz. It prevents the wheels from locking up during braking, allowing the driver to maintain steering control and reduce stopping distance. Here’s a breakdown of its significance:

Enhanced Safety: ABS significantly reduces the risk of skidding and loss of control during emergency braking.
Improved Steering Control: By preventing wheel lockup, ABS allows the driver to steer and avoid obstacles while braking.
Shorter Stopping Distances: ABS can reduce stopping distances, especially on slippery surfaces.
Prevention of Wheel Lockup: The primary function of ABS is to prevent the wheels from locking up during braking, ensuring optimal traction and control.

1.1 How ABS Works in Mercedes-Benz Vehicles

The ABS in Mercedes-Benz vehicles consists of several key components working in harmony:

Wheel Speed Sensors: These sensors monitor the rotational speed of each wheel.
Hydraulic Control Unit (HCU): The HCU modulates brake pressure to each wheel based on input from the wheel speed sensors.
Electronic Control Unit (ECU): The ECU processes data from the sensors and controls the HCU.
Brake Booster: Assists in applying brake pressure.

When the ABS detects that a wheel is about to lock up, it rapidly modulates the brake pressure to that wheel, preventing it from locking and maintaining traction.

1.2 Why ABS Fault Codes Matter

When the ABS malfunctions, the vehicle’s onboard computer generates a fault code, also known as a Diagnostic Trouble Code (DTC). These codes are essential for diagnosing the issue and performing the necessary repairs. Ignoring ABS fault codes can lead to:

Compromised Safety: A malfunctioning ABS can significantly reduce the vehicle’s ability to stop safely in emergency situations.
Increased Risk of Accidents: Loss of steering control during braking can increase the risk of accidents.
Further Damage: Ignoring ABS issues can lead to further damage to the braking system and other related components.

Regular maintenance and prompt attention to ABS fault codes are vital for ensuring the safety and reliability of your Mercedes-Benz.

2. Common Mercedes ABS Fault Codes List

Here is an extensive list of common ABS fault codes you might encounter in your Mercedes-Benz, along with their possible causes and solutions. These codes can help you or your mechanic diagnose and fix the problems efficiently.

2.1 C0031 – Left Front Wheel Speed Sensor Circuit

Detail	Description
Definition	Indicates a problem with the left front wheel speed sensor circuit.
Possible Causes	Faulty wheel speed sensor, damaged wiring, corroded connectors, or a problem with the ABS control module.
Symptoms	ABS light on, reduced braking performance, potential loss of ABS function.
Solutions	Inspect and replace the wheel speed sensor, repair or replace damaged wiring, clean corroded connectors, check ABS module.

2.2 C0034 – Right Front Wheel Speed Sensor Circuit

Detail	Description
Definition	Indicates a problem with the right front wheel speed sensor circuit.
Possible Causes	Faulty wheel speed sensor, damaged wiring, corroded connectors, or a problem with the ABS control module.
Symptoms	ABS light on, reduced braking performance, potential loss of ABS function.
Solutions	Inspect and replace the wheel speed sensor, repair or replace damaged wiring, clean corroded connectors, check ABS module.

2.3 C0037 – Left Rear Wheel Speed Sensor Circuit

Detail	Description
Definition	Indicates a problem with the left rear wheel speed sensor circuit.
Possible Causes	Faulty wheel speed sensor, damaged wiring, corroded connectors, or a problem with the ABS control module.
Symptoms	ABS light on, reduced braking performance, potential loss of ABS function.
Solutions	Inspect and replace the wheel speed sensor, repair or replace damaged wiring, clean corroded connectors, check ABS module.

2.4 C0040 – Right Rear Wheel Speed Sensor Circuit

Detail	Description
Definition	Indicates a problem with the right rear wheel speed sensor circuit.
Possible Causes	Faulty wheel speed sensor, damaged wiring, corroded connectors, or a problem with the ABS control module.
Symptoms	ABS light on, reduced braking performance, potential loss of ABS function.
Solutions	Inspect and replace the wheel speed sensor, repair or replace damaged wiring, clean corroded connectors, check ABS module.

2.5 C0061 – ABS Solenoid Valve Fault

Detail	Description
Definition	Indicates a malfunction in one or more of the ABS solenoid valves.
Possible Causes	Faulty solenoid valve, wiring issues, or a problem with the ABS control module.
Symptoms	ABS light on, erratic braking behavior, potential loss of ABS function.
Solutions	Inspect and replace the faulty solenoid valve, repair wiring, check ABS module.

2.6 C0081 – Pump Motor Control Circuit Fault

Detail	Description
Definition	Indicates a problem with the ABS pump motor control circuit.
Possible Causes	Faulty pump motor, wiring issues, or a problem with the ABS control module.
Symptoms	ABS light on, reduced braking performance, potential loss of ABS function.
Solutions	Inspect and replace the pump motor, repair wiring, check ABS module.

2.7 C1000 – ABS Control Module Fault

Detail	Description
Definition	Indicates a problem with the ABS control module itself.
Possible Causes	Internal module failure, wiring issues, or voltage problems.
Symptoms	ABS light on, complete loss of ABS function, potential issues with other vehicle systems.
Solutions	Check wiring and voltage to the module, replace the ABS control module.

2.8 C1011 – ASR/ETS/ESP Circuit Open or Shorted

Detail	Description
Definition	Indicates an open or shorted circuit in the ASR, ETS, or ESP systems.
Possible Causes	Wiring issues, faulty sensors, or a problem with the ABS control module.
Symptoms	ABS light on, issues with traction control and stability systems.
Solutions	Inspect and repair wiring, replace faulty sensors, check ABS module.

2.9 C1020 – CAN Communication Fault

Detail	Description
Definition	Indicates a communication problem on the Controller Area Network (CAN) bus.
Possible Causes	Wiring issues, faulty control modules, or interference on the CAN bus.
Symptoms	ABS light on, issues with multiple vehicle systems, communication errors.
Solutions	Inspect wiring, check and replace faulty modules, diagnose and repair CAN bus issues.

2.10 C1401 – High-Pressure Return Pump Circuit Fault

Detail	Description
Definition	Indicates a problem with the high-pressure return pump circuit.
Possible Causes	Faulty pump, wiring issues, or a problem with the ABS control module.
Symptoms	ABS light on, reduced braking performance, potential loss of ABS function.
Solutions	Inspect and replace the pump, repair wiring, check ABS module.

2.11 C1142 – ABS Lateral Acceleration Sensor Open/Shorted

Detail	Description
Definition	Indicates a problem with the lateral acceleration sensor.
Possible Causes	Faulty sensor, wiring issues, or a problem with the ABS control module.
Symptoms	ABS light on, issues with stability control, potential erratic braking behavior.
Solutions	Inspect and replace the sensor, repair wiring, check ABS module.

Understanding these common ABS fault codes and their potential solutions can help you address ABS issues efficiently, ensuring your Mercedes-Benz remains safe and reliable. Remember to consult a qualified technician for accurate diagnosis and repair.

3. How to Diagnose Mercedes ABS Fault Codes

Diagnosing ABS fault codes in your Mercedes-Benz involves several steps, from reading the codes to pinpointing the underlying issue. Here’s a structured approach:

3.1 Step-by-Step Diagnostic Process

Read the Fault Codes:
- Use an OBD-II scanner to retrieve the ABS fault codes from the vehicle’s computer. Ensure the scanner is compatible with Mercedes-Benz vehicles. CARDIAGTECH.NET offers a range of high-quality diagnostic tools perfect for this task.
Record the Codes:
- Write down all the retrieved codes. This information is crucial for further diagnosis and troubleshooting.
Research the Codes:
- Consult a reliable source, such as a Mercedes-Benz repair manual or an online database (like this article from CARDIAGTECH.NET), to understand the meaning of each code.
Inspect the System:
- Visually inspect the ABS components, including wheel speed sensors, wiring, connectors, and the ABS control module. Look for signs of damage, corrosion, or loose connections.
Test the Components:
- Use a multimeter or oscilloscope to test the wheel speed sensors, wiring, and other components. Compare the readings to the manufacturer’s specifications.
Isolate the Problem:
- Based on the fault codes and component testing, isolate the specific component or circuit that is causing the issue.
Verify the Repair:
- After performing the necessary repairs, clear the fault codes and test the system to ensure the problem has been resolved.

3.2 Tools Required for Diagnosis

To effectively diagnose Mercedes ABS fault codes, you’ll need the following tools:

OBD-II Scanner: A tool to read and clear diagnostic trouble codes.
Multimeter: For testing voltage, continuity, and resistance in electrical circuits.
Oscilloscope: For analyzing electrical signals from sensors and other components.
Wiring Diagrams: To understand the electrical layout of the ABS system.
Mercedes-Benz Repair Manual: Provides detailed information on ABS components, testing procedures, and repair instructions.

3.3 Interpreting the Fault Codes

Understanding the meaning of ABS fault codes is crucial for accurate diagnosis. Here’s how to interpret them:

Code Format: ABS fault codes typically follow a standard format, such as “C####,” where “C” indicates a chassis code related to the braking system.
Code Definition: Each code corresponds to a specific problem within the ABS system. Refer to a reliable source to determine the exact meaning of the code.
Possible Causes: The code definition will often list possible causes of the problem, helping you narrow down the potential issues.
Troubleshooting Steps: Use the code definition and possible causes to guide your troubleshooting efforts.

3.4 Safety Precautions During Diagnosis

When diagnosing and repairing ABS issues, it’s important to follow these safety precautions:

Disconnect the Battery: Before working on the electrical system, disconnect the negative battery terminal to prevent electrical shock or damage to components.
Use Proper Tools: Use the correct tools for the job to avoid damaging components or injuring yourself.
Follow Repair Manuals: Always follow the repair procedures outlined in the Mercedes-Benz repair manual.
Wear Safety Gear: Wear safety glasses and gloves to protect yourself from potential hazards.
Test in a Safe Area: When testing the ABS system, do so in a safe area away from traffic and other hazards.

By following these steps and using the right tools, you can effectively diagnose Mercedes ABS fault codes and ensure your vehicle’s braking system is functioning properly.

4. Repairing Common Mercedes ABS Faults

Once you’ve diagnosed the ABS fault code, the next step is to repair the issue. Here’s how to address some common ABS faults in Mercedes-Benz vehicles:

4.1 Wheel Speed Sensor Replacement

Wheel speed sensors are critical for the ABS to function correctly. If a sensor fails, here’s how to replace it:

Preparation:
- Gather necessary tools: wrench set, socket set, and new wheel speed sensor.
- Safely lift the vehicle and secure it with jack stands.
- Remove the wheel.
Locate the Sensor:
- Find the wheel speed sensor on the wheel hub.
- Disconnect the sensor’s electrical connector.
Remove the Old Sensor:
- Remove the bolt or screws holding the sensor in place.
- Carefully remove the old sensor.
Install the New Sensor:
- Install the new sensor in the reverse order of removal.
- Ensure the sensor is securely mounted.
- Reconnect the electrical connector.
Reassemble:
- Reinstall the wheel.
- Lower the vehicle.
- Test the ABS system and clear any fault codes.

4.2 Wiring and Connector Repairs

Damaged or corroded wiring and connectors can cause ABS faults. Here’s how to repair them:

Inspect Wiring:
- Visually inspect the wiring for any signs of damage, such as cuts, abrasions, or corrosion.
Clean Connectors:
- Clean corroded connectors with a wire brush or electrical contact cleaner.
Repair Wiring:
- Repair damaged wiring by splicing in new sections of wire.
- Use heat-shrink tubing to protect the connections.
Replace Connectors:
- Replace damaged connectors with new ones.
- Ensure the connectors are securely attached.
Test the Circuit:
- Use a multimeter to test the repaired circuit for continuity and proper voltage.
- Clear any fault codes and test the ABS system.

4.3 ABS Control Module Replacement

If the ABS control module is faulty, it may need to be replaced. This can be a more complex repair:

Preparation:
- Gather necessary tools: wrench set, socket set, and new ABS control module.
- Locate the ABS control module (typically in the engine compartment).
- Disconnect the battery.
Disconnect the Module:
- Disconnect the electrical connectors from the ABS control module.
- Remove any mounting hardware.
Remove the Old Module:
- Carefully remove the old ABS control module.
Install the New Module:
- Install the new ABS control module in the reverse order of removal.
- Ensure the module is securely mounted.
- Reconnect the electrical connectors.
Coding the New Module:
- The new ABS control module may need to be coded or programmed to the vehicle using a diagnostic tool.
Reassemble:
- Reconnect the battery.
- Test the ABS system and clear any fault codes.

4.4 Hydraulic Control Unit (HCU) Issues

Issues with the HCU can also cause ABS faults. Common problems include solenoid valve failures and pump motor issues.

Solenoid Valve Replacement:
- If a solenoid valve is faulty, it may need to be replaced.
- Follow the manufacturer’s instructions for replacing the solenoid valve.
Pump Motor Replacement:
- If the pump motor is faulty, it may need to be replaced.
- Follow the manufacturer’s instructions for replacing the pump motor.
Bleeding the Brakes:
- After replacing any hydraulic components, bleed the brakes to remove any air from the system.

Note: Always consult a professional technician for complex repairs like ABS control module replacement and hydraulic system repairs.

5. Advanced Diagnostic Techniques

For more complex ABS issues, advanced diagnostic techniques may be necessary. These techniques require specialized tools and knowledge.

5.1 Using Oscilloscopes for Signal Analysis

An oscilloscope can be used to analyze the signals from wheel speed sensors and other ABS components. This can help identify intermittent problems or subtle issues that may not be apparent with a multimeter.

Waveform Analysis:
- Connect the oscilloscope to the wheel speed sensor signal wire.
- Rotate the wheel and observe the waveform.
- Look for any irregularities or dropouts in the waveform.
Interpreting Results:
- A consistent, clean waveform indicates a healthy sensor.
- Irregularities or dropouts may indicate a faulty sensor or wiring issue.

5.2 CAN Bus Diagnostics

The CAN bus is a critical communication network in modern vehicles. Problems on the CAN bus can cause a variety of ABS faults.

CAN Bus Testing:
- Use a diagnostic tool with CAN bus testing capabilities to monitor communication on the bus.
- Look for any communication errors or disruptions.
Troubleshooting CAN Issues:
- If communication errors are detected, troubleshoot the CAN bus wiring and modules.
- Check for shorts, opens, or high resistance in the CAN bus circuits.

5.3 Utilizing Mercedes-Benz Diagnostic Software

Mercedes-Benz offers specialized diagnostic software, such as XENTRY or DAS, which provides advanced diagnostic capabilities.

Advanced Diagnostics:
- Use the Mercedes-Benz diagnostic software to perform advanced diagnostic tests on the ABS system.
- Access detailed fault code information and troubleshooting procedures.
Module Programming:
- Use the software to program or code new ABS control modules.
- Perform adaptations and calibrations as needed.

5.4 When to Seek Professional Help

While some ABS repairs can be performed by experienced DIYers, it’s important to know when to seek professional help.

Complex Issues: If you’re not comfortable working on the ABS system or if the issue is complex, consult a qualified technician.
Specialized Tools: Some repairs require specialized tools or diagnostic equipment that may not be available to the average DIYer.
Safety Concerns: ABS issues can affect the vehicle’s braking performance, so it’s important to ensure the repairs are performed correctly for safety.

By understanding advanced diagnostic techniques and knowing when to seek professional help, you can ensure that your Mercedes-Benz ABS system is properly diagnosed and repaired.

6. Preventative Maintenance for Mercedes ABS Systems

Preventative maintenance is key to ensuring the long-term reliability and performance of your Mercedes-Benz ABS system. Here are some essential tips:

6.1 Regular Inspections

Regularly inspect the ABS system to identify potential problems early.

Visual Inspection:
- Check wheel speed sensors for damage or corrosion.
- Inspect wiring and connectors for wear and tear.
- Look for any signs of brake fluid leaks.
Professional Inspections:
- Have the ABS system inspected by a qualified technician during regular maintenance visits.
- They can perform thorough checks and identify potential issues before they become major problems.

6.2 Brake Fluid Maintenance

Brake fluid is a critical component of the ABS system. Contaminated or old brake fluid can cause corrosion and damage to ABS components.

Flush Brake Fluid:
- Flush the brake fluid every two years or as recommended by Mercedes-Benz.
- Use the correct type of brake fluid specified for your vehicle.
Check Fluid Level:
- Regularly check the brake fluid level in the master cylinder.
- Top off the fluid as needed, but be sure to investigate any significant fluid loss.

6.3 Wheel Speed Sensor Cleaning

Wheel speed sensors can become dirty or contaminated, causing inaccurate readings.

Clean Sensors:
- Periodically clean the wheel speed sensors with a soft brush and electrical contact cleaner.
- Remove any dirt, debris, or corrosion that may be affecting the sensor’s performance.

6.4 Monitoring Tire Condition

Tire condition can affect the ABS system’s performance.

Check Tire Pressure:
- Regularly check and maintain proper tire pressure.
- Underinflated or overinflated tires can affect braking performance.
Inspect Tire Wear:
- Inspect tires for uneven wear, which can indicate alignment issues or suspension problems.
- Replace tires as needed to ensure optimal traction and braking performance.

6.5 Adhering to Mercedes-Benz Maintenance Schedules

Following the recommended maintenance schedules provided by Mercedes-Benz is crucial for maintaining the ABS system.

Follow Guidelines:
- Adhere to the maintenance intervals for ABS-related components.
- This includes brake pad replacement, rotor resurfacing, and other brake system services.
Keep Records:
- Keep detailed records of all maintenance and repairs performed on the ABS system.
- This can help track potential issues and ensure that maintenance is performed on time.

By following these preventative maintenance tips, you can help ensure the long-term reliability and performance of your Mercedes-Benz ABS system, keeping you safe on the road.

7. Case Studies: Real-World ABS Fault Examples

To illustrate how ABS fault codes manifest in real-world scenarios, let’s examine a few case studies:

7.1 Case Study 1: C0031 – Left Front Wheel Speed Sensor Failure

Vehicle: 2016 Mercedes-Benz C300
Symptoms: ABS light on, reduced braking performance, occasional loss of ABS function.
Fault Code: C0031 – Left Front Wheel Speed Sensor Circuit
Diagnosis:
- Visual inspection revealed a damaged wire near the sensor.
- Testing the sensor with a multimeter showed inconsistent readings.
Solution:
- Replaced the left front wheel speed sensor and repaired the damaged wiring.
- Cleared the fault code and tested the ABS system.
Outcome: ABS system functioning properly, no more warning lights.

7.2 Case Study 2: C1000 – ABS Control Module Fault

Vehicle: 2012 Mercedes-Benz E350
Symptoms: ABS light on, complete loss of ABS function, issues with other vehicle systems.
Fault Code: C1000 – ABS Control Module Fault
Diagnosis:
- Voltage and wiring to the ABS control module were checked and found to be normal.
- Diagnostic tests indicated an internal failure of the ABS control module.
Solution:
- Replaced the ABS control module.
- Coded the new module to the vehicle using Mercedes-Benz diagnostic software.
- Cleared the fault code and tested the ABS system.
Outcome: ABS system functioning properly, all systems back to normal.

7.3 Case Study 3: C1020 – CAN Communication Fault

Vehicle: 2018 Mercedes-Benz GLC300
Symptoms: ABS light on, issues with multiple vehicle systems, communication errors.
Fault Code: C1020 – CAN Communication Fault
Diagnosis:
- CAN bus testing revealed communication errors between the ABS module and other control units.
- Inspected the CAN bus wiring and found a corroded connector.
Solution:
- Cleaned the corroded connector and repaired the CAN bus wiring.
- Cleared the fault code and tested the ABS system.
Outcome: Communication restored, ABS system functioning properly, no more warning lights.

7.4 Case Study 4: Brake Fluid Contamination

Vehicle: 2015 Mercedes-Benz C-Class
Symptoms: Spongy brake pedal, ABS activating erratically.
Fault Code: No specific ABS fault codes, but ABS system not performing optimally.
Diagnosis: Inspection of brake fluid revealed it was dark and contaminated.
Solution: Brake system flushed and new, high-quality brake fluid installed.
Outcome: Brake feel restored, ABS functioning correctly.

These case studies illustrate the importance of accurate diagnosis and appropriate repair techniques when dealing with Mercedes ABS fault codes.

8. The Importance of Using Quality Parts and Tools

When repairing your Mercedes-Benz ABS system, using high-quality parts and tools is essential for ensuring reliable and safe performance.

8.1 Why Quality Matters

Reliability: High-quality parts are designed to meet or exceed the manufacturer’s specifications, ensuring reliable performance and longevity.
Safety: Using inferior parts can compromise the safety of the ABS system and the vehicle as a whole.
Compatibility: Genuine Mercedes-Benz parts and approved aftermarket parts are designed to be compatible with your vehicle’s ABS system.
Performance: Quality parts can help maintain the optimal performance of the ABS system, ensuring it functions as intended.

8.2 Recommended Brands for ABS Components

Mercedes-Benz Genuine Parts: These are the same parts used in the factory and are guaranteed to be compatible with your vehicle.
Bosch: A leading supplier of ABS components and systems for Mercedes-Benz and other automakers.
ATE: Another reputable brand that supplies high-quality ABS parts and brake components.

8.3 The Right Tools for the Job

Using the right tools is just as important as using quality parts. The right tools can help you perform repairs more efficiently and avoid damaging components.

Diagnostic Tools: Use a high-quality OBD-II scanner and Mercedes-Benz diagnostic software for accurate diagnosis.
Hand Tools: Invest in a good set of wrenches, sockets, and other hand tools.
Specialty Tools: Some ABS repairs may require specialty tools, such as brake bleeding kits or wheel speed sensor removal tools.

8.4 Where to Purchase Quality Parts and Tools

Mercedes-Benz Dealerships: Dealerships are a reliable source for genuine Mercedes-Benz parts.
Reputable Online Retailers: Retailers such as CARDIAGTECH.NET offer a wide selection of high-quality parts and tools at competitive prices.
Local Auto Parts Stores: Choose auto parts stores that carry reputable brands and offer knowledgeable customer service.

9. CARDIAGTECH.NET: Your Partner in Mercedes-Benz Diagnostics and Repair

At CARDIAGTECH.NET, we understand the complexities of diagnosing and repairing modern vehicles like Mercedes-Benz. That’s why we offer a comprehensive range of diagnostic tools, equipment, and resources to help you get the job done right.

9.1 Diagnostic Tools Offered by CARDIAGTECH.NET

OBD-II Scanners: Our selection of OBD-II scanners includes models compatible with Mercedes-Benz vehicles, allowing you to read and clear ABS fault codes.
Mercedes-Benz Diagnostic Software: We offer access to Mercedes-Benz diagnostic software, such as XENTRY and DAS, for advanced diagnostics and module programming.
Multimeters and Oscilloscopes: Our multimeters and oscilloscopes can help you test and analyze electrical circuits in the ABS system.

9.2 Why Choose CARDIAGTECH.NET?

Quality Products: We offer only high-quality diagnostic tools and equipment from reputable brands.
Expert Support: Our team of experienced technicians can provide expert support and guidance to help you diagnose and repair ABS issues.
Competitive Prices: We offer competitive prices on all of our products.
Customer Satisfaction: We are committed to providing excellent customer service and ensuring your satisfaction.

9.3 Contact Us for Your Diagnostic Needs

If you’re looking for diagnostic tools or equipment for your Mercedes-Benz, don’t hesitate to contact us at CARDIAGTECH.NET.

Address: 276 Reock St, City of Orange, NJ 07050, United States
WhatsApp: +1 (641) 206-8880
Website: CARDIAGTECH.NET

Our team is ready to help you find the right tools and resources for your diagnostic and repair needs.

10. Mercedes ABS Fault Codes FAQ

Here are some frequently asked questions about Mercedes ABS fault codes:

What is an ABS fault code?
- An ABS fault code, or Diagnostic Trouble Code (DTC), is a code generated by the vehicle’s onboard computer when it detects a problem with the Anti-lock Braking System (ABS).
How do I read ABS fault codes?
- You can read ABS fault codes using an OBD-II scanner that is compatible with Mercedes-Benz vehicles.
Can I drive with the ABS light on?
- It is not recommended to drive with the ABS light on, as it indicates a problem with the ABS system, which can compromise your safety.
What are the most common causes of ABS fault codes?
- Common causes of ABS fault codes include faulty wheel speed sensors, damaged wiring, corroded connectors, and problems with the ABS control module.
Can I repair ABS faults myself?
- Some ABS repairs, such as replacing a wheel speed sensor, can be performed by experienced DIYers. However, more complex repairs should be performed by a qualified technician.
How often should I have my ABS system inspected?
- You should have your ABS system inspected by a qualified technician during regular maintenance visits, or at least once a year.
What type of brake fluid should I use in my Mercedes-Benz?
- Use the type of brake fluid specified for your vehicle in the owner’s manual. Typically, Mercedes-Benz vehicles use DOT 4 brake fluid.
Can low tire pressure affect the ABS system?
- Yes, low tire pressure can affect the ABS system’s performance, as it can alter the wheel speed readings.
What is the ABS control module?
- The ABS control module is the electronic control unit that manages the ABS system. It receives data from the wheel speed sensors and controls the hydraulic control unit.
Where can I find high-quality ABS parts and tools for my Mercedes-Benz?
- You can find high-quality ABS parts and tools at Mercedes-Benz dealerships, reputable online retailers like CARDIAGTECH.NET, and local auto parts stores.

By understanding these FAQs, you can better address ABS issues and maintain the safety and reliability of your Mercedes-Benz.

Understanding the mercedes abs fault codes list is essential for maintaining the safety and performance of your vehicle. By following this guide, you can diagnose and address common ABS issues effectively. Remember, CARDIAGTECH.NET is here to support you with quality diagnostic tools, expert advice, and exceptional customer service. Don’t hesitate to reach out for assistance! Contact us today via WhatsApp at +1 (641) 206-8880 or visit our website at CARDIAGTECH.NET. Let us help you keep your Mercedes-Benz running smoothly and safely.