how to fix the manual transmission grinding issue in Volkswagen Golf MK7 (2015-2019)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface.
• Disconnect the battery to prevent any electrical issues.
• Safety warning: Allow the engine to cool before beginning work.

2. Inspect and Replace Clutch Fluid

• Locate the clutch master cylinder reservoir and remove the cap.
• Check the fluid level; if low, top it off with the recommended DOT fluid (consult owner’s manual).
• If the fluid is contaminated, flush the system:
  1. Attach a clear hose to the bleeder valve on the slave cylinder.
  2. Open the bleeder valve and have an assistant depress the clutch pedal.
  3. Close the valve before releasing the pedal. Repeat until fluid runs clear.

3. Change Transmission Fluid

• Place a drain pan under the transmission.
• Remove the transmission drain plug and allow old fluid to drain completely.
• Replace the drain plug with a new gasket.
• Refill with the manufacturer-recommended transmission fluid through the fill plug using a fluid pump until it reaches the correct level.

4. Inspect and Replace Clutch Assembly (if necessary)

• Remove the transmission from the vehicle:
  1. Disconnect driveshafts and exhaust components as necessary.
  2. Unbolt the transmission from the engine block.
  3. Support the transmission with a jack and slide it out.
• Inspect the clutch disc, pressure plate, and flywheel for wear.
• If worn, replace the clutch assembly:
  1. Remove the old clutch components.
  2. Clean the flywheel surface.
  3. Install the new clutch disc and pressure plate, ensuring proper alignment.
  4. Torque the pressure plate bolts to the manufacturer-specified value.

5. Reassemble and Test

• Reinstall the transmission following the reverse order of removal.
• Reconnect the battery.
• Test drive the vehicle to ensure smooth shifting and check for grinding noise.