КЛЮЧ РЫБКА МЕРСЕДЕС | РЕМОНТ в Нижнем Новгороде

Introduction

This tutorial provides a step-by-step guide on how to repair a Mercedes key fob, commonly referred to as a "fish key." If your key fob is not working, such as failing to start your vehicle or unlock the doors, this guide will help you troubleshoot and fix the issue before considering a replacement.

Step 1: Identify the Issues

Before starting the repair, determine what problems your key fob is experiencing. Common issues include:

• Key fob not unlocking the doors
• Key fob not starting the vehicle
• Physical damage to the key fob

Step 2: Open the Key Fob

To assess the internal components, you need to open the key fob. Follow these steps:

1. Use a small screwdriver or a flat tool to gently pry apart the two halves of the key fob.
2. Be careful not to apply too much force to avoid breaking the casing.

Step 3: Inspect the Internal Components

Once the key fob is open, check for the following:

• Battery: Ensure the battery is intact and properly seated. If the battery appears dead or corroded, replace it with a new one.
• Circuit Board: Look for any visible damage, such as cracks or burnt areas. If the circuit board is damaged, it may need to be replaced.

Step 4: Clean the Contacts

If the key fob is not functioning properly due to dirt or corrosion, cleaning may help:

1. Use a cotton swab and isopropyl alcohol to clean the contacts on the circuit board.
2. Allow it to dry completely before reassembling.

Step 5: Test the Key Fob

After performing the repairs and cleaning, test the key fob:

• Reinsert the battery and close the fob.
• Try unlocking the doors and starting the vehicle.
• If it still doesn’t work, further investigation may be required.

Conclusion

Repairing a Mercedes key fob can often resolve issues without the need for a costly replacement. Always start by identifying the problem, followed by careful inspection and cleaning of the internal components. If repairs are unsuccessful and the key fob remains non-functional, consider seeking professional help or purchasing a new key.