how to fix P0302 misfire code in Volkswagen Golf Seventh Generation (2013-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool if it has been running.

2. Replace Ignition Coil

• Tools Required: Socket set, torque wrench, dielectric grease.
• Remove the engine cover (if applicable) to access the ignition coil.
• Disconnect the electrical connector from the ignition coil.
• Remove the retaining bolts securing the ignition coil and lift it out.
• Install the new ignition coil in place, ensuring it is seated properly.
• Reconnect the electrical connector and apply dielectric grease to the connection.
• Torque bolts to manufacturer specifications (usually around 8-10 Nm).

3. Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench, dielectric grease.
• Remove the ignition coil (as described above).
• Use a spark plug socket to unscrew and remove the old spark plug.
• Inspect the old spark plug for fouling, wear, or damage.
• Install the new spark plug, hand-tighten, then torque to the specified value (usually around 25 Nm).
• Reinstall the ignition coil following the previous instructions.

4. Check and Clean Fuel Injector

• Tools Required: Fuel injector cleaner, fuel line removal tool (if necessary).
• Disconnect the fuel line and electrical connector from the fuel injector for cylinder 2.
• Remove the fuel injector from the intake manifold.
• Clean the injector using a fuel injector cleaner.
• Reinstall the cleaned injector and reconnect the fuel line and electrical connector.

5. Perform Final Assembly

• Reinstall any engine covers removed during the procedure.
• Reconnect the negative battery terminal.