my Skoda Octavia NFL (2020-Present) transmission makes a grinding noise in reverse, why?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is on a level surface and securely raised using jack stands.
• Disconnect the battery to prevent any electrical issues.

2. Fluid Check and Replacement

• Step 1: Remove the transmission fill plug using a socket wrench.
• Step 2: Inspect the fluid; if it appears dark or contains metal shavings, proceed to replace it.
• Step 3: Drain the old transmission fluid by removing the drain plug, allowing it to completely empty into a suitable container.
• Step 4: Replace the drain plug and torque it to the manufacturer's specifications.
• Step 5: Refill the transmission with new fluid, using the type specified in the owner’s manual.

3. Inspect and Replace Components

• Step 1: Remove the transmission pan (if necessary) to access internal components.
• Step 2: Inspect the reverse gear and synchronizers for wear or damage.
• Step 3: Replace any worn components (e.g., reverse gear, synchronizer rings) with OEM parts.
• Step 4: Reinstall the transmission pan with a new gasket, ensuring to torque the bolts to the specified value.

4. Reassemble and Test

• Step 1: Reconnect the battery and ensure all connections are secure.
• Step 2: Start the engine and allow it to reach operating temperature.
• Step 3: Test the vehicle in reverse to confirm the noise has been resolved.