Peugeot 208 Upper Gearbox Mount Replacement

by Alex Braham 44 views

Replacing the upper gearbox mount, also known as the coxim superior cambio in some regions, on your Peugeot 208 is a crucial maintenance task that can significantly impact your driving experience. A worn or damaged gearbox mount can lead to increased vibrations, noise, and even damage to other components of your vehicle. In this comprehensive guide, we'll walk you through everything you need to know about this replacement, ensuring you can tackle it with confidence, whether you're a seasoned mechanic or a DIY enthusiast.

Understanding the Importance of the Upper Gearbox Mount

The upper gearbox mount plays a vital role in securing the gearbox to the vehicle's chassis. Its primary function is to absorb vibrations and reduce noise generated by the engine and transmission. By doing so, it enhances the overall comfort of your ride and protects other sensitive parts from excessive wear and tear. Over time, however, the mount can deteriorate due to exposure to heat, oil, and general wear, leading to a range of issues that can affect your Peugeot 208's performance and safety.

Recognizing the Symptoms of a Failing Mount

Before diving into the replacement process, it's essential to identify the symptoms that indicate a failing upper gearbox mount. Here are some common signs to watch out for:

  • Excessive Vibrations: One of the most noticeable symptoms is increased vibration throughout the vehicle, especially when idling or accelerating. You might feel the vibrations in the steering wheel, seats, or floorboards.
  • Unusual Noises: A worn mount can cause clunking or knocking noises, particularly when shifting gears or going over bumps. These noises are often a result of the gearbox moving excessively due to the deteriorated mount.
  • Rough Shifting: If you experience difficulty shifting gears or notice a jerky motion during gear changes, it could be a sign of a failing mount. The mount's inability to properly support the gearbox can affect the smoothness of gear transitions.
  • Visual Inspection: A visual inspection of the mount can reveal cracks, tears, or general deterioration of the rubber components. If you notice any of these signs, it's time to consider a replacement.

Preparing for the Replacement

Gathering the Necessary Tools and Parts

To ensure a smooth and efficient replacement process, gather all the necessary tools and parts beforehand. Here's a list of what you'll need:

  • New Upper Gearbox Mount: Purchase a high-quality replacement mount that is specifically designed for your Peugeot 208 model. Ensure it meets or exceeds OEM specifications for optimal performance and durability.
  • Socket Set: A comprehensive socket set with various sizes will be essential for removing and installing bolts and nuts.
  • Wrench Set: A set of wrenches, including open-end and box-end wrenches, will be needed for accessing hard-to-reach fasteners.
  • Torque Wrench: A torque wrench is crucial for tightening bolts to the manufacturer's specified torque settings. This ensures proper installation and prevents over-tightening, which can damage the mount or surrounding components.
  • Jack and Jack Stands: A jack and jack stands are necessary for safely lifting and supporting the vehicle. Never work under a vehicle supported only by a jack.
  • Wheel Chocks: Use wheel chocks to prevent the vehicle from rolling while it's lifted.
  • Penetrating Oil: Apply penetrating oil to any stubborn or rusted bolts to make them easier to remove.
  • Gloves and Safety Glasses: Protect your hands and eyes by wearing gloves and safety glasses throughout the replacement process.
  • Floor Jack with Wood Block: Use a floor jack with a wood block to support the gearbox during the mount replacement. This prevents the gearbox from shifting or falling when the mount is removed.

Safety First: Preparing Your Vehicle

Before you start any work on your Peugeot 208, prioritize safety by following these steps:

  1. Park on a Level Surface: Ensure your vehicle is parked on a flat, level surface to prevent it from rolling.
  2. Engage the Parking Brake: Firmly engage the parking brake to secure the vehicle.
  3. Chock the Wheels: Place wheel chocks behind the rear wheels to further prevent movement.
  4. Disconnect the Battery: Disconnect the negative terminal of the battery to prevent any electrical accidents during the replacement process.

Step-by-Step Replacement Guide

Now that you've gathered your tools and prepared your vehicle, let's proceed with the step-by-step replacement guide:

Step 1: Accessing the Upper Gearbox Mount

  1. Locate the Mount: The upper gearbox mount is typically located on top of the gearbox, near the engine. Refer to your vehicle's repair manual for the exact location.
  2. Remove Any Obstructions: Remove any components that may be obstructing access to the mount, such as air intake ducts or wiring harnesses. Be careful not to damage any surrounding parts.

Step 2: Supporting the Gearbox

  1. Position the Floor Jack: Place the floor jack with a wood block under the gearbox to provide support. The wood block will help distribute the weight evenly and prevent damage to the gearbox.
  2. Raise the Jack: Slowly raise the jack until it lightly supports the gearbox. Be careful not to lift the gearbox excessively.

Step 3: Removing the Old Mount

  1. Loosen the Mount Bolts: Use a socket or wrench to loosen the bolts securing the upper gearbox mount to the vehicle's chassis and gearbox. Apply penetrating oil to any stubborn bolts.
  2. Remove the Bolts: Once the bolts are loosened, carefully remove them. Keep track of the bolts and their locations, as you'll need to reinstall them later.
  3. Remove the Old Mount: With the bolts removed, carefully lift out the old upper gearbox mount. Inspect the mount for any signs of damage or wear.

Step 4: Installing the New Mount

  1. Position the New Mount: Place the new upper gearbox mount in the same location as the old mount. Ensure it aligns properly with the mounting points on the chassis and gearbox.
  2. Install the Bolts: Insert the bolts through the mount and into the chassis and gearbox. Hand-tighten the bolts to ensure proper alignment.
  3. Tighten the Bolts: Use a torque wrench to tighten the bolts to the manufacturer's specified torque settings. Refer to your vehicle's repair manual for the correct torque values. Tightening the bolts to the correct torque is crucial for ensuring the mount is securely installed and will function properly.

Step 5: Lowering the Gearbox and Reassembling

  1. Lower the Jack: Slowly lower the floor jack until the gearbox is no longer supported. Remove the jack from under the vehicle.
  2. Reinstall Any Removed Components: Reinstall any components that you removed to access the mount, such as air intake ducts or wiring harnesses. Ensure all connections are secure.
  3. Reconnect the Battery: Reconnect the negative terminal of the battery.

Post-Replacement Checks and Maintenance

Test Driving Your Peugeot 208

After completing the replacement, it's essential to test drive your Peugeot 208 to ensure the new upper gearbox mount is functioning correctly. Pay attention to any unusual vibrations, noises, or shifting issues. If you notice any problems, re-inspect the mount and surrounding components to identify the cause.

Regular Inspections and Maintenance

To prolong the life of your new upper gearbox mount and maintain the overall performance of your Peugeot 208, perform regular inspections and maintenance. Check the mount for any signs of wear or damage during routine maintenance checks. Replace the mount as needed to prevent further issues and ensure a smooth and comfortable driving experience.

Professional Assistance

If you're not comfortable performing the replacement yourself, or if you encounter any difficulties during the process, don't hesitate to seek professional assistance from a qualified mechanic. A professional mechanic has the expertise and tools necessary to safely and effectively replace the upper gearbox mount on your Peugeot 208.

Conclusion

Replacing the upper gearbox mount on your Peugeot 208 is a manageable task that can significantly improve your vehicle's performance and comfort. By following this comprehensive guide, you can confidently tackle the replacement, ensuring a smooth and enjoyable driving experience. Remember to prioritize safety throughout the process and seek professional assistance if needed. With a new, properly installed upper gearbox mount, your Peugeot 208 will be ready to take on the road with renewed vigor.