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The iridium tipped OEM spark plugs in a 4th generation (2014, 2015, 2016, 2017 and 2018) Subaru Forester with the FB25 2.5 liter four cylinder boxer engine can last up to 100,000 miles but they should be checked well before that mileage. Take a look at my DIY instructions for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.

2014-2018 Subaru Forester Engine Spark Plugs Replacement Guide

If you’ve been having difficulty starting the FB25 2.5L four cylinder engine in your 4th generation (2014, 2015, 2016, 2017 & 2018) Subaru Forester on a cold morning and the OEM 12 volt car battery is a few years old, you probably need to replace it. Check out my DIY tutorial for the procedure (with the OEM group size and the compatible replacement part numbers) by clicking on the text link or thumbnail image below.

2014-2018 Subaru Forester 12V Automotive Battery Replacement Guide

The engine air filter element for a 4th generation (2014, 2015, 2016, 2017 and 2018) Subaru Forester SUV should be cleaned at every oil change and replaced at least every two to three years. Check out my DIY instructions for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.

2014-2018 Subaru Forester Engine Air Filter Replacement Guide

The best place to start when troubleshooting any electrical problem with your fourth generation (2014, 2015, 2016, 2017 and 2018) Subaru Forester SUV is to check for a blown electrical fuse or a faulty relay in either the engine bay or the interior passenger compartment electrical panels. Take a look at my DIY guide for the procedure by clicking on the text link or thumbnail image below.

2014-2018 Subaru Forester Electrical Fuses Replacement Guide

If you’ve been having difficulty seeing out of the front windshield window of your 4th generation (2014, 2015, 2016, 2017 & 2018) Subaru Forester SUV, you probably need to change the wiper blades. Check out my DIY tutorial for the procedure (with the OEM blade size in inches and the compatible replacement part numbers) by clicking on the text link or thumbnail image below.

2014-2018 Subaru Forester Windshield Wiper Blades Replacement Guide

If you need to change a burnt out cargo area light bulb in your 4th generation (2014, 2015, 2016, 2017 & 2018) Subaru Forester SUV, check out my DIY tutorial for the procedure (with the compatible replacement part number) by clicking on the text link or thumbnail image below.

2014-2018 Subaru Forester Cargo Area Light Bulb Replacement Guide

If you need to change a burnt out brake, rear turn signal, reverse or rear side marker light bulb in the tail light housings of your 4th generation (2014, 2015, 2016, 2017 and 2018) Subaru Forester SUV, check out my DIY tutorial for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.

2014-2018 Subaru Forester Tail Light Bulbs Replacement Guide

If you need to change a burnt out license plate light bulb on the tailgate of your 4th generation (2014, 2015, 2016, 2017 and 2018) Subaru Forester SUV (or upgrade them both to brighter LED units), check out my DIY tutorial for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail picture below.

2014-2018 Subaru Forester License Plate Light Bulbs Replacement Guide

If you’ve been having trouble seeing out of the back windshield window of your fourth generation (2014, 2015, 2016, 2017 and 2018) Subaru Forester SUV during a rain or snow storm, you may need to change the rear wiper blade. Check out my DIY instructions for the procedure (with the OEM blade size in inches and the compatible replacement part numbers) by clicking on the text link or thumbnail image below.

2014-2018 Subaru Forester Rear Wiper Blade Replacement Guide

If you need to change a burnt out courtesy step light bulb on the bottom of the plastic interior door panel of your fourth generation (2014, 2015, 2016, 2017 & 2018) Subaru Forester SUV, check out my DIY tutorial for the procedure (with the compatible replacement part number) by clicking on the text link or thumbnail image below.

2014-2018 Subaru Forester Courtesy Step Light Bulb Replacement Guide