The Real Reason Behind Mercedes Side Mirrors Not Folding When Locking

Are you worried about your Mercedes side mirrors not folding when locking?

Picture this: you park your sleek Mercedes-Benz, press the lock button on your remote, and expect the side mirrors to gracefully fold in. But here’s the dilemma – they remain stubbornly extended. 

Frustrating, isn’t it? 

Let’s find out why your side mirrors refuse to fold when locking. In this post, we’ll delve into the common culprits, potential fixes, and expert tips to restore the folding function of your side mirrors. Get ready to know the answer right here!

mercedes side mirrors not folding when locking

Causes Of Mercedes Side Mirrors Not Folding When Locking

Owning a Mercedes-Benz comes with a sense of luxury and sophistication, including features like power-folding side mirrors. These mirrors offer convenience, aesthetics, and protection against potential damage while parking. However, it can be frustrating when you press the lock button on your remote, expecting the side mirrors to elegantly fold, only to find them stubbornly sticking out. 

Let’s discover why your Mercedes side mirrors are not folding when locking. Here are the common situations that may be happening:

1. Mirror Folding System Malfunction

One of the primary reasons your Mercedes side mirrors may not fold when locking is a malfunction within the mirror folding system. This system consists of motors, control modules, wiring, and switches responsible for the folding mechanism. Malfunctions can occur due to electrical issues, motor failures, or faulty control modules. In such cases, a diagnostic scan using specialized equipment can help identify the specific problem and guide the repair process.

2. Mirror Folding Settings

Sometimes, the issue lies not in a malfunction but rather in the mirror folding settings. Mercedes vehicles often provide customizable options for mirror behavior, allowing drivers to adjust the folding functionality to their preference. It is possible that the mirror folding feature has been inadvertently disabled or modified through the vehicle’s settings menu. Referencing the owner’s manual or consulting with a Mercedes dealership can guide you in restoring the proper settings.

3. Faulty Mirror Folding Switch

The mirror folding switch, located on the driver’s door panel, enables manual control over the side mirrors’ folding action. If this switch is faulty or worn out, it can prevent the mirrors from folding even when the locking command is sent. Inspecting the switch for any signs of damage or wear, and replacing it if necessary, can resolve the issue.

4. Central Locking System

The operation of the side mirror folding is closely tied to the central locking system of the vehicle. The central locking system controls various functions, including the locking and unlocking of doors, windows, and side mirrors. If there is a fault or malfunction in the central locking system, it can affect the mirror folding functionality. Professional diagnosis and repair of the central locking system may be required to rectify the problem.

5. Wiring and Connectivity Issues

Faulty wiring or poor connectivity can disrupt the communication between the mirror folding system components and the central locking system. Wiring harnesses may become damaged over time, causing intermittent connectivity or complete disconnection. Inspecting the wiring, connectors, and ensuring proper connectivity can help resolve the issue. In some cases, repairing or replacing the affected wiring may be necessary.

6. Mechanical Obstructions

Physical obstructions or mechanical issues within the side mirror assembly can hinder the folding action. It is possible that debris, dirt, or foreign objects have obstructed the smooth movement of the mirrors, preventing them from folding. Thoroughly inspecting the mirror housing, cleaning any debris, and ensuring the mechanical components move freely can alleviate this problem.

Troubleshooting Tips you Should KNow

When your side mirror fails to fold, it can be frustrating and inconvenient. However, before you rush to the dealership or call a mechanic, there are several troubleshooting steps you can take to potentially fix the issue. I

1. Check Mirror Folding Setting

Start by checking the mirror folding setting in your vehicle’s settings menu. Sometimes, the feature may have been inadvertently disabled or modified. Enable the mirror folding option if it’s currently turned off, and test whether the mirrors fold when locking the vehicle.

2. Reset Mirror Folding System

Performing a reset of the mirror folding system can help resolve any temporary glitches. To reset the system, disconnect the vehicle’s battery for a few minutes, then reconnect it. This process clears any stored error codes and resets the electronic systems, potentially resolving the issue.

3. Inspect Mirror Folding Switch

Examine the mirror folding switch located on the driver’s door panel. Look for signs of damage, wear, or dirt that may be obstructing the proper operation of the switch. If necessary, clean the switch or consider replacing it if it appears faulty.

4. Verify Central Locking System

Ensure that your central locking system is functioning correctly. Malfunctions in the central locking system can affect the mirror folding functionality. Check if the doors lock and unlock properly using the remote or door switches. If there are issues with the central locking system, consult a professional to diagnose and repair the problem.

5. Check Wiring and Connections

Inspect the wiring and connections related to the mirror folding system. Loose or damaged wiring can cause intermittent connectivity issues or complete disconnection, preventing the mirrors from folding. Ensure that all wiring harnesses are securely connected and free from damage. If there are faulty connectors or wiring, be sure to repair or replace them.

6. Lubricate Moving Parts

In some cases, mechanical resistance or friction within the side mirror assembly can prevent smooth folding. Apply a lubricant, such as silicone spray or white lithium grease, to the moving parts of the mirror assembly. This helps reduce friction and facilitates proper folding movement.

7. Seek Professional Assistance

If the above steps do not resolve the issue, it is advisable to seek professional assistance. Contact a trusted mechanic, dealership, or automotive specialist who has experience with your specific vehicle make and model. They have the expertise and specialized equipment to diagnose and repair complex mirror folding system malfunctions.

Read More: How To Reset Def Light On Mercedes Sprinter

Final Thoughts

Dealing with a side mirror that refuses to fold can be frustrating, but there are several troubleshooting steps you can take to potentially fix the issue. By checking the mirror folding settings, inspecting the switch, verifying the central locking system, examining the wiring and connections, lubricating moving parts, and seeking professional assistance when necessary, you should be able to resolve this issue once and for all.

Remember, if you’re unsure or uncomfortable performing any of these steps yourself, it’s always best to consult a professional to ensure a proper diagnosis and effective repair. Soon enough, your side mirror will be gracefully folding with the touch of a button, restoring convenience and functionality to your driving experience.

1 thought on “The Real Reason Behind Mercedes Side Mirrors Not Folding When Locking”

  1. Thanks I shall try the battery solution.
    There dosnt seem to be any button between the left and right mirror adjustment buttons.


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