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In 2017, there were reported issues with the electrical system of the VW Tiguan, including problems with the spark plugs and alternator. Over time, the vehicle's battery may encounter challenges, such as leaks leading to fluid loss or complete loss of charge. When this happens, you'll need to either recharge or replace the battery. Additionally, a cracked battery case may develop, necessitating a complete replacement. The battery may also drain quickly, requiring repairs. Ultimately, this component will lose its effectiveness and will need to be replaced every 50,000 to 60,000 miles. While this maintenance may incur costs, you'll have to spend the money to ensure your car remains operational.
Frequently reported electrical problems with the 2017 VW Tiguan include power window and door problems, radio malfunctions, and software glitches.