my Volkswagen Golf MK6 (2009-2014) feels like it’s shaking at idle, why?

Solution

1. Preparation

• Gather necessary tools and materials.
• Ensure the vehicle is parked on a flat surface and securely supported if working underneath.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect Engine Mounts

• Sub-steps:
  1. Visually inspect all engine mounts for cracks or separation.
  2. Using a pry bar, check the engine movement by gently lifting the engine. Excessive movement indicates a failed mount.
• Tools Required: Pry bar, flashlight

3. Replace Faulty Engine Mounts (if applicable)

• Sub-steps:
  1. Lift the engine slightly using a jack with a block of wood to support it.
  2. Remove the bolts securing the damaged engine mount using a socket set.
  3. Replace with a new engine mount, ensuring it is properly aligned.
  4. Torque bolts to the manufacturer’s specifications (usually around 30-50 Nm, check service manual).
• Tools Required: Socket set, torque wrench, jack

4. Clean Throttle Body and MAF Sensor

• Sub-steps:
  1. Remove the air intake duct to access the throttle body and MAF sensor.
  2. Use throttle body cleaner to spray and wipe the throttle body clean.
  3. Use MAF cleaner specifically designed for mass airflow sensors to clean the MAF sensor.
  4. Reassemble all components carefully.
• Tools Required: Screwdrivers, throttle body cleaner, MAF cleaner

5. Replace Spark Plugs and Coils (if necessary)

• Sub-steps:
  1. Remove the ignition coils by disconnecting the electrical connectors and unscrewing the bolts.
  2. Extract spark plugs using a spark plug socket and ratchet.
  3. Install new spark plugs with a gap set to manufacturer specification (usually around 0.028 inches).
  4. Reinstall ignition coils, ensuring all connections are secure.
• Tools Required: Spark plug socket, ratchet, torque wrench