2017 Ford Fusion Battery Location – A Professional Guide To Access
The battery in a 2017 Ford Fusion is located in the engine compartment on the driver’s side, tucked partially beneath the plastic cowl near the windshield. To fully access and remove it, you must first remove the air intake box assembly. This design requires a few extra steps compared to a standard battery swap, but it is well within the reach of a DIY mechanic.
If you have ever popped the hood of your sedan and felt a wave of confusion, you are not alone. Modern engine bays are packed tighter than ever, and the 2017 ford fusion battery location is a prime example of “creative” engineering. You can see the front of the battery, but the rest of it seems to vanish into the dashboard.
In this guide, I will walk you through the exact steps to locate, access, and replace your battery safely. We will also discuss why the hybrid models are different and how to handle the computer reset that Ford requires. Whether you are stuck in your driveway or prepping for a road trip, this breakdown will get you back on the road.
By the time you finish reading, you will know exactly which tools to grab and how to avoid the common mistakes that lead to broken plastic clips or electrical gremlins. Let’s dive into the engine bay and get to work.
Finding the 2017 ford fusion battery location
When you stand at the front of your car and look at the engine, the battery is situated on the far right side (the driver’s side). At first glance, you might only see the positive terminal and a small portion of the battery casing. The back half of the unit is actually shielded by the plastic cowl cover that sits below your windshield wipers.
This “tucked-away” 2017 ford fusion battery location serves a few purposes, mainly protecting the battery from extreme engine heat and optimizing space. However, it means you cannot simply lift the battery straight up and out. You have to create a path for it by removing the components sitting directly in front of it.
If you own a Fusion Hybrid or the Energi plug-in model, your search will take you to a completely different part of the car. In those versions, the 12V auxiliary battery is located in the trunk, hidden behind a removable panel on the left side. It is crucial to identify your specific trim level before you start turning wrenches.
Essential Tools for the Job
Before you start, gather your tools so you aren’t hunting for a socket while your airbox is hanging by a thread. You don’t need a professional lift or a massive chest of tools, but a few specific items will make the job significantly easier. Having the right leverage is key when dealing with tight engine bays.
You will primarily need a 10mm socket or wrench. This is the “gold standard” size for almost every fastener involved in this process, from the battery terminals to the hold-down bracket. I highly recommend using a socket with a long extension (at least 6 inches) to reach the bracket at the base of the battery.
- 10mm Deep Socket: For the terminals and the hold-down bolt.
- Flathead Screwdriver: To loosen the hose clamps on the air intake.
- Socket Extension: Essential for reaching deep into the engine bay.
- Battery Terminal Cleaner: To remove any oxidation or “white fuzz” from the cables.
- Work Gloves: To protect your hands from sharp plastic edges and battery acid.
Optional but Recommended Tools
If you want to do the job like a pro, consider a Memory Saver. This is a small device that plugs into your OBD-II port or cigarette lighter to maintain a tiny amount of power to the car’s computer. This prevents you from losing your radio presets, seat positions, and clock settings while the battery is disconnected.
A digital multimeter is also a great companion. Before you pull the old battery out, test it to ensure it is actually the culprit. A healthy battery should read around 12.6 volts when the car is off. If you see 12.2 volts or lower, the battery is likely nearing the end of its functional life.
Step-by-Step Guide to Accessing the Battery
Now that you have located the 2017 ford fusion battery location and gathered your tools, it is time to clear the path. The biggest obstacle is the air cleaner assembly. Follow these steps carefully to ensure you don’t damage any sensors or vacuum lines during the removal process.
Step 1: Removing the Air Intake Box
Start by loosening the metal hose clamp that connects the thick rubber air intake tube to the airbox using your flathead screwdriver or a socket. Once loose, wiggle the tube off the box. You will also see a small electrical connector—this is the Mass Air Flow (MAF) sensor. Carefully squeeze the tab and pull the plug out.
The airbox itself is usually held in place by rubber grommets. You should be able to lift the entire front section of the box straight up and set it aside. This creates a large opening directly in front of the battery, allowing you to slide the battery forward and then lift it out of the engine bay.
Step 2: Disconnecting the Terminals
Always disconnect the negative (black) terminal first. This is a vital safety step. If your wrench touches a metal part of the car while you are loosening the negative terminal, nothing happens. However, if you start with the positive terminal and your wrench touches the frame, you will create a massive spark and potentially damage the car’s electronics.
Once the negative cable is tucked safely to the side, repeat the process for the positive (red) terminal. If the cables are stuck, do not pry them with a screwdriver. Instead, gently wiggle them back and forth until they release. You may need to clean some corrosion off the terminals if they appear crusty or discolored.
Step 3: Removing the Hold-Down Bracket
The battery is secured by a small metal plate at the base. Use your 10mm socket and extension to remove the bolt holding this plate in place. Once the bracket is out, you can slide the battery toward the front of the car (where the airbox used to be) and then lift it out. Be careful—car batteries are surprisingly heavy, usually weighing between 30 and 50 pounds.
Gas vs. Hybrid: Location Differences
It is worth noting that the 2017 ford fusion battery location changes drastically depending on the powertrain. For the standard 2.5L, 1.5L EcoBoost, and 2.0L EcoBoost models, the engine bay instructions above apply. These cars use a standard lead-acid battery to crank the engine and power the lights.
However, the Hybrid and Energi models are different. These vehicles have a large high-voltage traction battery under the rear seat/trunk area, but they still rely on a small 12V auxiliary battery to boot up the computers. You will find this 12V battery in the trunk on the driver’s side, behind a carpeted access panel.
Replacing the trunk-mounted battery is actually much easier because you don’t have to remove any engine components. You simply pop the panel, undo the terminals, and swap it out. If you are jump-starting a hybrid, however, you should still use the jump points located under the hood, as they are specifically designed for that purpose.
The Critical Battery Management System (BMS) Reset
One of the most overlooked parts of a Ford battery replacement is the Battery Management System (BMS). The 2017 Fusion uses a smart charging system that tracks the age and health of the battery. As a battery gets older, the alternator changes how it charges to compensate for the wear and tear.
If you install a brand-new battery but don’t reset the BMS, the car will continue to charge the new battery as if it were the old, dying one. This can lead to shortened battery life and may cause your auto start-stop system (if equipped) to stop functioning correctly. You want your new investment to last as long as possible.
How to Reset the BMS Manually
You don’t necessarily need a fancy computer to reset the system. There is a “secret handshake” method you can perform from the driver’s seat. While this works on most 2017 models, some may require a professional scan tool or an app like FORScan to complete the process properly.
- Get in the car and close all the doors.
- Switch the ignition to “On” (Accessory mode) but do not start the engine.
- Flash your high beams 5 times.
- Press and release the brake pedal 3 times.
- Wait about 10 seconds. The battery icon on your dashboard should flash, indicating the reset was successful.
Common Pitfalls and Safety Tips
Even a simple job can go sideways if you aren’t careful. One common mistake is dropping the 10mm bolt for the hold-down bracket into the depths of the engine splash shield. If this happens, you might spend an hour fishing it out with a magnet. I like to put a small piece of electrical tape inside my socket to hold the bolt securely while I lower it into place.
Another issue is the plastic clips on the airbox. In colder weather, these clips become brittle and can snap easily. If you are working in a cold climate, try to let the engine run for a few minutes before you start to warm up the plastic, or just be extra gentle when prying the MAF sensor connector.
- Check the Group Size: Ensure your new battery is the correct size (usually Group 48/H6 or 96R).
- Secure the Cables: Make sure the terminals are tight enough that you cannot move them by hand.
- Vent Tube: If your battery has a small hole on the side for a vent tube, make sure to reconnect it. This carries dangerous gases away from the engine.
- Call a Pro: If you see frayed wires or heavy acid leaks that have eaten into the metal tray, it may be time to consult a licensed technician.
Frequently Asked Questions About the 2017 Ford Fusion Battery Location
Where is the battery on a 2017 Ford Fusion Hybrid?
The 12V auxiliary battery on the Hybrid and Energi models is located in the trunk. It is tucked behind a removable carpet panel on the driver’s side (left side) of the cargo area. It is much smaller than a standard car battery.
Do I have to remove the airbox to change the battery?
Yes, for the gas-powered models, you must remove the air cleaner assembly. The 2017 ford fusion battery location is partially obstructed by the cowl, and there isn’t enough clearance to lift the battery out without moving the airbox first.
What happens if I don’t reset the BMS after a battery change?
If the BMS is not reset, the alternator may overcharge the new battery, thinking it is still the old, degraded unit. This can lead to premature battery failure and issues with electronic features like the fuel-saving auto start-stop system.
Can I jump-start my 2017 Fusion from the trunk?
No, you should use the designated jump-start points under the hood. Even if your battery is in the trunk (Hybrid), Ford provides specific metal posts in the engine bay for jumping the vehicle. Consult your owner’s manual for the exact location of these posts.
Final Thoughts on Your Battery Project
Replacing your battery is one of the most rewarding DIY tasks you can perform. It saves you the cost of a shop’s labor and ensures you won’t be stranded on a cold morning. While the 2017 ford fusion battery location is a bit tucked away, the process is straightforward once you clear the airbox out of the way.
Always remember to prioritize safety by wearing gloves and disconnecting the negative terminal first. Don’t forget that final step of resetting the BMS to keep your charging system healthy. Taking these extra few minutes will ensure your Fusion stays reliable for years to come.
Now that you know the layout and the tricks of the trade, you are ready to tackle this job with confidence. Grab your 10mm socket, take your time with the plastic clips, and enjoy the satisfaction of a job well done. Stay safe and stay comfortable!
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