my Porsche Cayenne E3 (2018-Present) has a rough start after fueling, why?

Solution

1. Preparation

• Gather tools and parts required.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to prevent any electrical shorts.

2. Replace Fuel Filter

• Tools Required: Socket set, fuel line disconnect tool, torque wrench.
• Sub-steps:
  1. Locate the fuel filter (usually along the fuel line).
  2. Use the fuel line disconnect tool to safely detach the fuel lines from the filter.
  3. Remove the mounting bolts holding the fuel filter in place.
  4. Install the new fuel filter in the same orientation as the old one.
  5. Reattach the fuel lines and secure them with their respective clips.

3. Clean or Replace Spark Plugs

• Tools Required: Spark plug socket, torque wrench, dielectric grease.
• Sub-steps:
  1. Remove the ignition coil by unscrewing it from the engine.
  2. Pull out the spark plug using the spark plug socket.
  3. Inspect the spark plug for wear or carbon buildup. Clean or replace if necessary.
  4. Reinstall the spark plug and torque it to manufacturer specifications.
  5. Apply dielectric grease to the ignition coil boot before reinstalling.

4. Inspect and Repair Fuel System Components

• Tools Required: O-ring pick, wrench set, fuel pressure gauge.
• Sub-steps:
  1. Inspect fuel lines and connections for leaks; replace any damaged components.
  2. Check the fuel injectors for clogs. Clean them using a fuel injector cleaning kit if necessary.
  3. Reconnect any disconnected lines and ensure a tight seal.

5. Reconnect Battery

• Reconnect the battery terminals and ensure they are secure.