
Removing the plastic engine cover on a Ford Focus ST is a straightforward task that allows for better access to the engine bay for maintenance or upgrades. To begin, ensure the vehicle is turned off and cooled down to avoid any risk of burns. Start by locating the retaining clips or screws that secure the cover in place; these are typically found around the edges and may require a screwdriver or trim removal tool for removal. Gently pry or unscrew these fasteners, taking care not to damage the surrounding components. Once all clips or screws are removed, carefully lift the cover straight up, being mindful of any attached hoses or wiring that might restrict its movement. With the cover off, you’ll have unobstructed access to the engine for cleaning, inspections, or modifications. Always reattach the cover securely after completing your work to protect the engine from debris and maintain proper airflow.
| Characteristics | Values |
|---|---|
| Tools Required | 10mm Socket/Wrench, Ratchet, Extension Bar |
| Number of Fasteners | 6-8 (depending on model year) |
| Fastener Type | Plastic Clips or Bolts |
| Location of Fasteners | Around the perimeter of the engine cover |
| Additional Components to Remove | None (in most cases) |
| Difficulty Level | Easy (requires basic mechanical skills) |
| Time to Complete | 10-15 minutes |
| Model Years Affected | 2013-2018 Ford Focus ST |
| Precautions | Disconnect battery if working near electrical components |
| Reinstallation Tips | Align cover properly and ensure all fasteners are securely tightened |
| Common Issues | Broken clips (may require replacement) |
| Alternative Methods | None (standard procedure is straightforward) |
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What You'll Learn

Tools needed for removing the plastic engine cover on a Focus ST
When preparing to remove the plastic engine cover on a Focus ST, having the right tools is essential to ensure the process is smooth and efficient. The primary tool you’ll need is a socket wrench set with various sizes, as the engine cover is typically secured with bolts or nuts that require specific socket sizes. A 10mm socket is commonly used for this task, but it’s a good idea to have a range of sizes (8mm to 12mm) to accommodate any variations. Additionally, an extension bar for the socket wrench can be helpful to reach bolts in tight spaces.
Another crucial tool is a ratchet to attach to the socket wrench, allowing you to turn the bolts with ease. If you prefer not to use a ratchet, a hand wrench or pliers can also be used, though they may require more effort and precision. For some Focus ST models, the engine cover may have plastic clips instead of bolts. In this case, a trim removal tool or a flathead screwdriver wrapped in tape (to prevent scratching) can be used to carefully pry the clips without damaging them.
To avoid losing any components during the removal process, a magnetic parts tray is highly recommended to keep bolts, nuts, and clips organized. Additionally, gloves are advisable to protect your hands from sharp edges or debris. If the engine cover is particularly stubborn or stuck due to dirt or grime, a clean cloth and degreaser can be used to clean the area around the bolts or clips, making removal easier.
Finally, having a flashlight or work light is beneficial, especially if you’re working in a dimly lit garage or under the hood where visibility is limited. This ensures you can clearly see the bolts, clips, and surrounding areas to avoid mistakes. While not a tool, a reference guide or online tutorial specific to the Focus ST can provide visual assistance and step-by-step instructions tailored to your vehicle’s model year.
By gathering these tools—a socket wrench set, ratchet, trim removal tool, magnetic parts tray, gloves, cloth, degreaser, flashlight, and a reference guide—you’ll be well-prepared to remove the plastic engine cover on your Focus ST efficiently and without damage. Each tool plays a specific role in simplifying the process, ensuring a hassle-free experience.
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Step-by-step guide to safely remove the engine cover
Step 1: Gather the Necessary Tools and Prepare the Workspace
Before beginning, ensure you have the required tools: a 10mm socket or wrench, a ratchet, and possibly a trim removal tool or flathead screwdriver for prying. Park your Ford Focus ST on a flat surface, engage the parking brake, and allow the engine to cool down if it has been running. This prevents burns and ensures safe handling of components. Lay down a clean cloth or mat to protect the engine cover from scratches once removed.
Step 2: Locate and Remove the Engine Cover Retaining Bolts
The plastic engine cover on the Focus ST is secured by several bolts. Start by locating these bolts, typically found around the perimeter of the cover. Use the 10mm socket and ratchet to loosen and remove each bolt carefully. Keep track of the bolts and their locations, as they may vary in length depending on their position. Place the bolts in a secure area to avoid misplacement.
Step 3: Release the Clips and Lift the Engine Cover
Once all bolts are removed, inspect the cover for any additional clips or tabs holding it in place. Gently pry these clips using a trim removal tool or flathead screwdriver, taking care not to damage the plastic. Apply even pressure to avoid bending or cracking the cover. After releasing the clips, carefully lift the engine cover straight upward. Be mindful of any wiring harnesses or hoses that may be connected to the cover.
Step 4: Disconnect Any Attached Components (If Necessary)
In some cases, the engine cover may have sensors, hoses, or wiring attached. If you encounter any connections, disconnect them gently. For example, if there’s a hose clipped to the cover, release the clip and detach it. Take note of how everything is connected to ensure proper reassembly later. If no components are attached, proceed to the next step.
Step 5: Inspect and Store the Engine Cover
With the cover removed, inspect it for any damage, cracks, or debris. Clean it if necessary using a mild detergent and water. Once cleaned, store the cover in a safe place, preferably wrapped in a soft cloth or bubble wrap to prevent scratches. If you’re replacing the cover, ensure the new one aligns properly with the mounting points before reinstalling.
Step 6: Reinstallation Tips (Optional)
If you’re reinstalling the cover after maintenance, follow the steps in reverse order. Ensure all clips are securely engaged and bolts are tightened evenly. Double-check that no hoses or wiring are pinched between the cover and the engine bay. Once reinstalled, start the engine briefly to confirm there are no issues before driving.
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Identifying and detaching clips and fasteners on the cover
When identifying and detaching clips and fasteners on the plastic engine cover of a Ford Focus ST, start by familiarizing yourself with the types of fasteners used. The engine cover typically employs a combination of push-type clips, screws, and possibly quick-release tabs. These clips are usually located along the edges of the cover and at strategic points where it attaches to the engine bay. Inspect the cover carefully, looking for small, round or rectangular clips that secure the cover to the mounting points. Some clips may be hidden behind rubber grommets or seals, so gently pull back any covering material to expose them.
To detach the push-type clips, use a trim removal tool or a flathead screwdriver with a cloth to prevent scratching the cover. Insert the tool under the edge of the clip’s head and gently pry it upward. Apply steady pressure to disengage the clip from its mounting hole. Be cautious not to force it, as excessive pressure can break the clip or damage the cover. Once the clip is released, lift the corresponding section of the cover slightly to ensure it is free before moving to the next clip. Repeat this process for all clips securing the cover in place.
For screws or bolts, use the appropriate screwdriver or socket wrench to loosen and remove them. Some screws may be hidden beneath stickers or caps, so inspect the cover thoroughly. After removing the screws, set them aside in a safe place to avoid losing them. If the cover has quick-release tabs, press or squeeze them to release the locking mechanism, then pull the cover away from the mounting point. These tabs are often found near the front or sides of the cover and require minimal force to operate.
In some cases, the engine cover may have additional fasteners near the firewall or along the sides of the engine bay. Check these areas for any remaining clips or screws that might still be holding the cover in place. Gently tug on the cover after detaching the visible fasteners to identify any hidden attachments. If resistance is felt, re-examine the area to locate and remove any overlooked clips or fasteners.
Finally, once all clips and fasteners are detached, carefully lift the engine cover straight upward to avoid catching it on any remaining tabs or hooks. Be mindful of any wiring harnesses or hoses that might be connected to the cover, and disconnect them if necessary before fully removing the cover. By systematically identifying and detaching each clip and fastener, you can safely remove the plastic engine cover without causing damage to the components or the cover itself.
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Tips for cleaning and maintaining the plastic engine cover
Before diving into cleaning and maintenance, it’s essential to safely remove the plastic engine cover on your Focus ST. Start by locating the retaining clips or screws that secure the cover in place. Typically, these are found along the edges or corners of the cover. Use a trim removal tool or a flathead screwdriver (wrapped with tape to prevent scratches) to gently pry off the clips or unscrew the fasteners. Lift the cover carefully to avoid damaging any wiring or hoses underneath. Once removed, place it on a clean, flat surface to begin the cleaning process.
Cleaning the plastic engine cover requires the right tools and techniques to avoid damage. Begin by using a soft-bristle brush or microfiber cloth to remove loose dirt, dust, and debris. For stubborn grime, mix a mild detergent with warm water and apply it to the cover using the brush or cloth. Avoid harsh chemicals or abrasive cleaners, as they can degrade the plastic or leave scratches. For oil or grease stains, a degreaser specifically designed for automotive use can be effective. Rinse the cover thoroughly with clean water and dry it completely before reinstallation to prevent water spots or residue.
Maintaining the plastic engine cover involves regular inspections and protective measures. After cleaning, apply a plastic restorer or UV protectant to prevent fading, cracking, or discoloration caused by sun exposure. This is especially important if your Focus ST is frequently parked outdoors. Additionally, check the cover for any signs of wear, such as cracks or warping, and address any issues promptly to avoid further damage. Keeping the cover in good condition not only enhances the engine bay’s appearance but also ensures it continues to protect engine components effectively.
Reinstalling the plastic engine cover is straightforward but requires attention to detail. Align the cover carefully with the mounting points, ensuring all clips or screws are securely fastened. Double-check that no wires or hoses are pinched or obstructed by the cover. Once in place, gently press around the edges to confirm it sits flush with the engine bay. Regularly removing and cleaning the cover as part of your maintenance routine will help you spot potential engine issues early and keep your Focus ST’s engine bay looking pristine.
Finally, consider the environment in which your Focus ST is driven and stored. If you frequently drive in muddy or dusty conditions, more frequent cleaning may be necessary. For long-term storage, especially in areas with extreme temperatures, ensure the engine cover is clean and treated with a protective product to prolong its lifespan. By following these tips, you’ll keep the plastic engine cover in optimal condition, contributing to both the aesthetics and functionality of your vehicle.
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Reinstalling the engine cover correctly after removal or cleaning
Reinstalling the engine cover on your Ford Focus ST after removal or cleaning requires attention to detail to ensure it fits securely and functions properly. Begin by inspecting the cover and its mounting points for any damage or debris. Clean the cover thoroughly, ensuring no dirt or residue remains that could interfere with the fitment. Similarly, wipe down the engine bay area where the cover sits, paying special attention to the rubber grommets and mounting holes. Proper cleaning ensures a snug fit and prevents vibrations or misalignment once reinstalled.
Next, align the engine cover carefully over the engine bay, ensuring it sits evenly and matches the original position. The cover typically has tabs or clips that correspond to specific locations on the engine bay. Gently lower the cover into place, starting from one side and working your way across to ensure all tabs engage correctly. Avoid forcing the cover into position, as this could damage the plastic or misalign the mounting points. If the cover has screws or bolts, leave them loose until the cover is fully aligned.
Once the cover is in place, secure it using the screws or bolts provided. Tighten them gradually and evenly, working in a diagonal pattern to ensure the cover sits flat and doesn’t warp. Be cautious not to overtighten, as plastic components can crack under excessive pressure. If your Focus ST uses push clips or retaining pins, ensure they are fully seated and audibly click into place. Double-check that all fasteners are secure and the cover doesn’t move or rattle when gently pressed.
After securing the cover, perform a final inspection to ensure everything is aligned and functional. Check for any gaps or uneven areas that might indicate a misfit. Start the engine and listen for unusual noises, such as vibrations or rattling, which could signal the cover isn’t properly seated. If everything appears secure and sounds normal, close the hood and ensure the cover doesn’t interfere with other components when the hood is latched.
Lastly, take the car for a short drive to confirm the engine cover remains stable at various speeds and conditions. Pay attention to any unusual sounds or vibrations that might arise while driving. If issues persist, recheck the installation process to ensure all components are correctly aligned and secured. Proper reinstallation not only protects the engine but also maintains the aesthetic and functional integrity of your Focus ST.
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Frequently asked questions
Begin by locating and removing the clips or screws holding the engine cover in place. These are typically found around the edges of the cover. Use a trim removal tool or screwdriver to avoid damaging the clips.
Basic tools like a screwdriver (flathead or Phillips, depending on the screws), a trim removal tool, and possibly a socket wrench are usually sufficient. No specialized tools are needed for this task.
Gently pry the edges of the cover using a trim removal tool to release any hidden clips or tabs. Avoid forcing it, as the plastic can crack. Check for any additional screws or fasteners that may still be holding it in place.











































