Expert Guide to Mercedes Benz ESP Control Unit Repair & Maintenance

Understanding Your Mercedes Benz ESP Control Unit

The Electronic Stability Program (ESP) control unit is a critical component in your Mercedes Benz, ensuring vehicle stability and safety in various driving conditions. This sophisticated system integrates with your vehicle’s Anti-lock Braking System (ABS), Traction Control System (TCS), and other sensors to monitor and adjust braking and engine power, preventing skids and maintaining control. If you own a Mercedes C-Class, CL-Class, GLK-Class, S-Class, or SLK-Class manufactured between 2006 and 2019, understanding the ESP control unit is essential for vehicle maintenance and optimal performance.

The table below outlines specific Mercedes Benz models and years where the ESP control unit discussed in this article is commonly applied:

Model Year	Mercedes-Benz Model	Trim Level
2012-2015	C-Class	C250
2008-2019	C-Class	C300
2006-2015	C-Class	C350
2017-2019	C-Class	C55 AMG
2015	C-Class	C400
2008-2018	C-Class	C63 AMG
2016	C-Class	C450 AMG
2007-2009	CL-Class	CL550
2007-2010	CL-Class	CL600
2008-2009	CL-Class	CL63 AMG
2008-2009	CL-Class	CL65 AMG
2013-2015	GLK-Class	GLK 250
2011-2015	GLK-Class	GLK 350
2007-2009	S-Class	S550
2007-2009	S-Class	S600
2008	S-Class	S63 AMG
2007-2008	S-Class	S65 AMG
2008-2019	C-Class	C230
2008-2019	C-Class	C280
2007-2010	CL-Class	CL500
2012-2015	SLK-Class	SLK 250
2008-2015	SLK-Class	SLK 350
2008-2015	SLK-Class	SLK 55 AMG

Important Considerations Before Ordering ESP Repair Service

Before proceeding with an ESP control unit repair service for your Mercedes Benz, it’s crucial to understand the process and ensure proper handling of your module. When shipping your Brake Control Module (BCM) and pump, careful packaging is paramount. Place both components in a robust plastic bag to contain any brake fluid leakage during transit. Fluid leaks can weaken packaging, potentially leading to damage or loss of the module. Given the weight of these parts, use ample protective packaging materials like bubble wrap and packing peanuts to prevent movement within the box. Adhering to these packaging guidelines is your responsibility and helps avoid potential additional fees, damage, or loss during shipping to our repair facility.

Note: While we specialize in Mercedes Benz ESP control unit repair, these modules can experience complex internal failures beyond standard repair procedures. In such cases, we may offer a program transfer service to a replacement module. This may involve additional costs and processing time. Contact our sales department for detailed information regarding program transfer services if you suspect a more complex issue.

This service is specifically for the repair of your existing Mercedes Benz ESP control unit module. You will need to remove your module and send it to us for expert repair using the prepaid shipping labels we provide after order processing.

Orders are processed during our regular business hours, Monday to Friday, 8:30 AM to 5:30 PM EST. Shipping labels and detailed shipping instructions will be emailed to you within one hour of order submission during business hours. If you do not receive your shipping labels promptly, please check your spam or junk folders first. For immediate assistance, contact us at 1-888-712-2525.

Key Features of Our Mercedes ESP Control Unit Repair Service

Plug & Play Operation: Our repair service ensures that the software and settings of your ESP control unit remain unmodified. This guarantees a true plug-and-play experience upon receiving your repaired module. No additional software reloading or complex calibration is needed after reinstalling the unit in your Mercedes Benz.
Fast Turnaround Time: We understand the importance of minimizing vehicle downtime. Your Mercedes ESP module will be thoroughly tested, professionally repaired, rigorously re-tested, and shipped back to you on the same day we receive it, unless otherwise specified. This rapid turnaround gets you back on the road quickly.
Comprehensive PCB Rework: Our expert technicians perform a complete rework of the Printed Circuit Board (PCB) within your ESP control unit. Every internal circuit board is meticulously tested at the component level. We proactively replace any components known to be prone to failure or operating close to their maximum tolerance, ensuring long-term reliability and preventing future issues.
Lifetime Limited Warranty: We stand behind the quality of our repair services. This Mercedes Benz ESP control unit repair service is backed by our Lifetime Limited Warranty. For complete warranty details, please visit Warranty & Return Policy.

Mercedes Benz ESP Control Unit Reference Numbers

To ensure compatibility and proper identification, refer to the following list of reference numbers associated with the Mercedes Benz ESP control units covered by this repair service. These numbers can typically be found on the module itself.

172-431-60-12 | 172-431-44-12-80 | 204-431-71-12 | A2045455432 | A2045455132 | A2045454632 | A1729014000 | A2045453932 | A2045455332 | A2215458732 | A2049012400 | A0375456332 | 28526062043 | A2045455232 | A2045454732 | A1729014100 | 204-431-2612-80 | 204-431-13-12 | 204-431-26-12 | 204-545-40-32 | 204-545-92-32 | 204-901-23-00 | 204-901-23-00-80 | 204901230064 | A2044313712 A2044314212| A2044314312 | A2044315312 |A2045455132 | A2045455432 | A2045455132 | A2045454632 | A2049012300 | A204901230080 | A204901230087 | A2045453932 | A2045455332 |A221431901280 | A2215458732 | A2049012400 | A0375456332 | 28526062043 | A2045455232 | A2045454732 | A1729014100 | 172-431-44-12-80 | 172-431-39-12 | 172-431-44-12 | 172-900-10-13 | 172-900-36-03 | 172-900-49-07| 172-900-84-03 | 172-900-97-02 | 172900521464 | A1729014000 | 172-900-52-14 | 172-900-52-14-64 | A2215459332 | A2215458732 | A221431901280 | 005-431-21-12 | 221-431-09-12 | 221-431-18-12 | 221-431-28-12 | 221-431-36-12 | 221-431-90-12

Common Symptoms of a Failing Mercedes Benz ESP Control Unit

Important Note: This comprehensive repair service addresses issues within the complete ABS Module and Hydraulic motor assembly, including the ESP control unit.

A malfunctioning Mercedes Benz ESP control unit can manifest in various symptoms, impacting your vehicle’s safety and handling. Be aware of these common warning signs:

Diagnostic Trouble Codes (DTCs): Fault codes indicating internal faults within the traction system hydraulic unit or ESP control unit are strong indicators of a problem. Specific codes include:
- 5962 Component A7/3 (Traction system hydraulic unit) has an internal fault.
- 5964 Component A7/3 (Traction system hydraulic unit) has an internal fault.
- 5001 There is an internal fault in component “N30/4 (Electronic Stability Program control unit)”.
- 5905 Control unit N47-5 (ESP control unit), internal fault.
- 5906 Control unit N47-5 (ESP control unit), internal fault.
- 5944 There is an internal fault in component “N30/4 (Electronic Stability Program control unit)”.
- 5944 Control unit N47-5 (ESP control unit) internal fault.
- 5945 There is an internal fault in component “N30/4 (Electronic Stability Program control unit)”.
- C1001 There is an internal fault in component “N30/4 (Electronic Stability Program control unit)”.
- C1945 There is an internal fault in component “N30/4 (Electronic Stability Program control unit)”.
Undervoltage Code: Code C2000 indicates “The supply voltage of control unit “N30/4 (Electronic Stability Program control unit)” is too low (undervoltage).” This can sometimes be related to ESP control unit issues or broader electrical system problems.
Communication Issues: Loss of communication with the ESP module or ABS module (U0121 “Lost communication with ABS Module”) is a critical symptom pointing to potential ESP control unit failure or related communication network problems.
Warning Lights and System Disablement: Illuminated ABS warning lights, often appearing after reaching approximately 20 km/h (12 mph), are a common sign. You may also experience a stiff steering wheel and disabled TPMS (Tire Pressure Monitoring System) as these systems are often interconnected with the ESP.
Vehicle Speed Sensor Codes: Faulty wheel speed sensor codes, including codes indicating implausible signals or malfunctions (e.g., 1425 “Wheel speed signal is implausible,” C113200 “Right rear axle RPM sensor is implausible,” P2158 “Vehicle speed sensor “B” malfunction”), can sometimes be triggered by ESP control unit problems as the unit relies on accurate speed sensor data.

How Our Mercedes Benz ESP Control Unit Repair Service Works: A Step-by-Step Guide

Our Mercedes Benz ESP control unit repair service is designed for simplicity and efficiency, getting your vehicle back to optimal safety and performance quickly. Here’s how it works:

Step 1: Secure Your Repair Service: Initiate the process by purchasing our expert repair service conveniently online through our website or by phone.

Step 2: Receive Prepaid Shipping Labels: Once your order is processed, we will promptly email you prepaid shipping labels and comprehensive shipping instructions. This simplifies the process of sending us your module.

Step 3: Ship Your Defective Unit: Carefully package your Mercedes Benz ESP control unit and hydraulic pump according to the guidelines mentioned earlier. Drop off the package at any UPS location or schedule a UPS pickup for added convenience.

Step 4: Expert Inspection and Repair: Upon receiving your module, our team of skilled technicians will conduct a thorough inspection to confirm the fault and perform professional repairs using high-quality components and advanced techniques.

Step 5: Module Return and Same-Day Shipping: We prioritize minimizing your vehicle’s downtime. Your repaired ESP control unit module will be meticulously tested to ensure optimal functionality and shipped back to you on the same day it is received (unless otherwise noted due to unforeseen circumstances).

Step 6: Reinstall and Drive: Once you receive your repaired module, simply reinstall it back into your Mercedes Benz. Thanks to our plug-and-play service, no additional programming or calibration is required. You can get back on the road with confidence, knowing your ESP system is functioning correctly.

For more detailed instructions and visual aids, please refer to our comprehensive guide: How to Place an Order. We are committed to providing a seamless and reliable Mercedes Benz ESP control unit repair experience.