Step-by-step Guide to Installing a Valvetronic Exhaust System on the M156

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Installing a Valvetronic exhaust system on the M156 engine can enhance performance and sound. This guide provides a step-by-step approach to ensure a successful installation.

Tools and Materials Needed

  • Socket set
  • Torque wrench
  • Jack and jack stands
  • Valvetronic exhaust system kit
  • Heat-resistant gloves
  • Safety glasses
  • Penetrating oil

Preparation Steps

Before starting the installation, ensure you have all tools and materials ready. Follow these preparation steps:

  • Park the vehicle on a flat surface.
  • Engage the parking brake.
  • Disconnect the battery to avoid any electrical issues.

Removing the Stock Exhaust System

To install the Valvetronic system, the stock exhaust must be removed. Follow these steps:

  • Use the jack to lift the vehicle and secure it with jack stands.
  • Apply penetrating oil to exhaust bolts for easier removal.
  • Remove the exhaust hangers using the socket set.
  • Disconnect the exhaust pipes from the headers.
  • Carefully remove the stock exhaust system from the vehicle.

Installing the Valvetronic Exhaust System

With the stock system removed, you can now install the Valvetronic exhaust. Follow these steps:

  • Position the Valvetronic exhaust system under the vehicle.
  • Connect the exhaust pipes to the headers, ensuring a snug fit.
  • Secure the exhaust hangers in place.
  • Adjust the position of the exhaust system as needed.
  • Use the torque wrench to tighten all bolts to the manufacturer’s specifications.

Finalizing the Installation

After the installation, it’s crucial to finalize and check everything. Follow these steps:

  • Recheck all connections and bolts for tightness.
  • Reconnect the battery.
  • Start the engine and listen for any unusual sounds.
  • Check for leaks around the exhaust connections.
  • Lower the vehicle from the jack stands.

Testing the New Exhaust System

Once the installation is complete, it’s important to test the new exhaust system:

  • Take the vehicle for a short drive to assess performance.
  • Pay attention to throttle response and sound quality.
  • Check for any warning lights on the dashboard.

Maintenance Tips

To ensure longevity and performance of your Valvetronic exhaust system, follow these maintenance tips:

  • Regularly inspect exhaust connections for tightness.
  • Clean the exhaust tips to maintain appearance.
  • Check for rust or damage periodically.

Conclusion

Installing a Valvetronic exhaust system on the M156 can significantly improve the vehicle’s performance and sound. By following this step-by-step guide, you can ensure a successful installation and enjoy the benefits of your new exhaust system.