Choosing the right battery for your 2017 Subaru Impreza is crucial for reliable starts and optimal vehicle performance. This comprehensive guide will walk you through everything you need to consider, from identifying the correct battery type to understanding replacement procedures and potential issues.
Identifying Your 2017 Subaru Impreza Battery
Before purchasing a replacement, you need to know the specific battery your Impreza requires. The best way to do this is to check your owner's manual. It will list the exact group size and recommended battery specifications. Alternatively, you can locate the battery itself; the group size (e.g., Group 51R) is usually printed on the battery case.
Important Note: The specific battery requirements may vary slightly depending on the trim level (e.g., 2.0i, 2.0i Premium, Sport) and optional equipment fitted to your vehicle. Always prioritize the information found in your owner's manual.
Choosing the Right Replacement Battery
Once you've identified your battery group size, you'll have several choices. You can opt for an Original Equipment Manufacturer (OEM) battery, which is typically the most expensive but offers a guaranteed fit and performance. Alternatively, you can choose an aftermarket battery from reputable brands. These often provide comparable performance at a lower price point.
Factors to Consider When Choosing a Replacement:
- Group Size: This is the most important factor, ensuring a proper fit in your vehicle's battery tray.
- Cold Cranking Amps (CCA): This measures the battery's ability to start your engine in cold weather. Higher CCA ratings are preferable for colder climates.
- Reserve Capacity (RC): This indicates how long the battery can power accessories if the alternator fails. A higher RC provides longer backup power.
- Warranty: Look for batteries with a robust warranty to protect your investment.
Replacing Your 2017 Subaru Impreza Battery: A Step-by-Step Guide
Replacing your car battery is a relatively straightforward process, but it's essential to follow safety precautions.
Tools You'll Need:
- Wrench (size will depend on your battery terminals)
- Socket wrench (may be needed for some battery hold-down systems)
- Safety glasses
- Gloves (optional but recommended)
Steps:
- Disconnect the Negative Terminal: Always disconnect the negative (-) terminal first to prevent electrical shorts.
- Disconnect the Positive Terminal: Next, disconnect the positive (+) terminal.
- Remove the Battery Hold-Down: Loosen and remove any clamps or straps holding the battery in place.
- Lift Out the Old Battery: Carefully lift the old battery out of the tray.
- Clean the Battery Tray: Use a wire brush or battery terminal cleaner to remove any corrosion.
- Install the New Battery: Place the new battery into the tray, ensuring it's securely seated.
- Connect the Positive Terminal: Connect the positive (+) terminal to the new battery.
- Connect the Negative Terminal: Connect the negative (-) terminal to the new battery.
- Secure the Battery: Reinstall the battery hold-down clamp or strap.
Important Safety Precautions:
- Always wear safety glasses to protect your eyes from acid splashes.
- Avoid touching the battery terminals directly.
- Never allow the positive and negative terminals to come into contact.
- If unsure about any step, consult your owner's manual or seek professional assistance.
Potential Problems and Troubleshooting
Even with a new battery, you might encounter starting issues. Some common problems include:
- Corroded Terminals: Clean the terminals with a wire brush or terminal cleaner.
- Faulty Alternator: A malfunctioning alternator may prevent the battery from charging properly.
- Parasitic Drain: A parasitic drain (electrical components drawing power even when the car is off) can slowly discharge the battery. A mechanic can help diagnose this.
Regular battery maintenance, including terminal cleaning and occasional testing, can help prolong its lifespan and prevent unexpected breakdowns. If you experience any persistent starting problems, consult a qualified mechanic for diagnosis and repair.
This guide provides a comprehensive overview of the 2017 Subaru Impreza battery. Remember to consult your owner's manual for specific details and always prioritize safety when working with car batteries.