how to fix P0021 camshaft timing code in Volkswagen Golf Seventh Generation (2013-2020)

Learn how to diagnose and fix P0021 camshaft timing code in Volkswagen Golf (2013-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Raise the vehicle safely using jack stands if necessary.

2. Change Engine Oil

• Sub-steps:
  1. Drain the old engine oil using an oil drain pan.
  2. Replace the oil filter with a new one suited for the vehicle.
  3. Refill the engine with manufacturer-recommended oil (5W-30 synthetic oil is typical).
• Tools Required: Oil drain pan, socket set, oil filter wrench.

3. Inspect and Replace VVT Solenoid

• Sub-steps:
  1. Locate the VVT solenoid, usually found near the camshaft on the engine.
  2. Disconnect the electrical connector and remove the bolts securing the solenoid.
  3. Install the new VVT solenoid and reconnect the electrical connector.
• Tools Required: Socket set, torque wrench (if specified torque is needed).

4. Adjust Camshaft Timing

• Sub-steps:
  1. Remove any necessary components (like the timing cover) to access the camshaft.
  2. Align the timing marks on the camshaft and crankshaft according to the service manual.
  3. Reinstall timing components ensuring proper tension is applied.
• Tools Required: Torque wrench, timing tool kit (if applicable), socket set.

5. Reassemble and Finalize

• Sub-steps:
  1. Reinstall any removed components such as the timing cover and any hoses.
  2. Reconnect the negative battery terminal.
  3. Start the engine and check for any unusual noises or leaks.
• Tools Required: Socket set, screwdrivers.