Mercedes Electric Power Steering Issues

Are you having trouble steering your Mercedes? It could be a problem with your electric power steering. Unlike hydraulic steering, electronic power steering uses advanced sensors and electronics to improve steering performance. If something goes wrong, the steering can become tight and more challenging, which isn’t safe in Dubai. Our experts can fix it.

Identifying the steering problems in your Mercedes is crucial. You must detect warning signs for timely repairs, which is vital for a smooth drive and road safety.

Warning Signs of Electric Power Steering Failure in Mercedes

If your steering feels off, your car may signal underlying EPS problems. Here are some common indicators:

1. Steering Feels Heavy 

A well-functioning EPS system ensures effortless turning. If your Mercedes steering becomes stiff, the electric motor might not provide enough assistance.

2. Warning Light on the Dashboard

Most Mercedes models display a power steering warning light when the system detects a fault. If this light appears, diagnostics are required.

3. Sudden Steering Loss or Jerky Movement

A malfunctioning EPS unit may cause the steering to feel inconsistent, jerk, or stop working. This is a serious issue and should be addressed immediately.

4. Unusual Noises 

The steering wheel makes a clicking, grinding, or whining noise as you turn it, usually suggesting that the electric motor or steering angle sensor is malfunctioning.

5. Delayed Response When Steering

If there’s a delay when you steer, your electric power steering may not be syncing well with the car’s electronics.

Common Reasons Behind Mercedes Electric Power Steering Issue

Mercedes EPS failures can happen for several reasons, including wear and tear, electrical faults, and sensor malfunctions. Here are some of the most common causes:

1. Malfunctioning EPS Control Module

The Electronic Power Steering Module manages the entire system. If it fails, the steering assistance may completely stop, leading to stiff and unresponsive handling.

2. Weak or Dead Battery

Since EPS runs on electric power, a failing battery can reduce efficiency or cause intermittent failures. If your Mercedes shows signs of power loss, checking the battery is crucial.

3. Faulty Steering Angle Sensor

This sensor helps the EPS system determine wheel positioning. A malfunctioning steering angle sensor can cause steering drift, jerking, or warning lights.

4. Damaged Wiring or Loose Electrical Connections

Faulty wiring can interrupt power flow to the EPS motor, causing steering inconsistencies or complete failure. Inspecting connections can prevent major breakdowns.

5. Blown Fuses or Defective Relays

Fuses protect electrical components from power surges. A blown EPS fuse or relay failure could stop the steering system from functioning.

6. EPS Motor Overheating or Wear and Tear

Excessive use, high temperatures, or aging components can cause the EPS motor to overheat or wear out, reducing steering performance.

How to Fix Mercedes Electric Power Steering Problems

When your EPS system malfunctions, early steps can prevent expensive repairs. Here’s what you can do:

1. Inspect the Battery and Charging System

Since EPS requires stable electrical power, checking the battery’s voltage ensures the system gets enough energy. If necessary, replace the battery.

2. Check Fuses and Relays

Locating the power steering fuse in the box and replacing it (if blown) can restore EPS function.

3. Reset the System

Sometimes, a simple reset can clear minor EPS glitches. Try turning off the engine, disconnecting the battery for 10 minutes, and reconnecting it.

4. Scan for Diagnostic Trouble Codes (DTCs)

Using an OBD-II scanner, you can retrieve error codes related to EPS problems. Some standard Mercedes EPS error codes include:

• C1511 – Control Module Failure
• C1513 – Steering Sensor Fault
• C1525 – EPS Motor Malfunction

5. Replace the Steering Angle Sensor

A faulty steering angle sensor should be replaced and recalibrated to prevent further EPS issues.

6. Inspect Wiring and Connections

Inspecting wiring for loose or damaged connections is necessary if the system intermittently fails.

7. Update or Reprogram the EPS Software

Newer Mercedes models may require software updates for the EPS module, which can be done at an authorized service centre.

Can You Drive With a Failing Power Steering System?

If the EPS system starts to fail, steering can become challenging, especially at lower speeds. A complete failure makes turning extremely difficult, which can be dangerous. It is crucial to get it fixed as soon as possible.

How to Prevent Mercedes Power Steering Issues

•  Keep your car’s battery strong to avoid steering problems.  
•  Check wires and connections to prevent electrical issues.  
•  Update the EPS software for better performance.  
•  Fix minor steering issues early to avoid costly repairs.  
•  Avoid water and extreme weather to protect electrical parts.  
•  Drive smoothly to reduce stress on the steering system.  
•  Check the power steering fluid if your model uses it.  
•  Replace worn-out parts before they fail.  
•  Service your car regularly to catch problems early.  
• Park with wheels straight to reduce steering strain.
•  Reduce pressure on the wheel turning mechanism by not overloading the car.
• Get them checked if you notice unusual sounds while turning.
• Ensure tires are correctly inflated for efficient steering.
• Avoid too many harsh bumps and potholes for vehicles with sensitive steering components.

Our Services

Munich Motor Works provides expert EPS diagnostics and repairs in Dubai if your Mercedes power steering malfunctions. Your vehicle is in professional hands, as our electronic power steering technicians can help you keep it upright. For professional Mercedes power steering repair, please visit Munich Motor Works today in Dubai.

Visit Munich Motor Works for professional Mercedes power steering repair today!