What are the reasons for the insufficient battery power of the Tiguan L causing failure to start?
2 Answers
The insufficient battery power of the Tiguan L causing failure to start can be attributed to the following reasons: 1. The car has been parked for a long time, leading to battery discharge. Even when the car is idle, the battery discharges due to its inherent characteristics, even when not in use. 2. The battery has reached the end of its service life. Most private cars currently use maintenance-free batteries. Clean the inspection window on the battery and observe the color inside: green indicates the battery is normal; black indicates low voltage and insufficient charge, which can be resolved by charging; white indicates the battery has reached the end of its life, and the only solution is to replace it with a new one. 3. Engine damage. 4. Insufficient battery electrolyte, etc.
As a long-term owner of the Tiguan L, I have also encountered situations where the battery died and the car wouldn't start. The most common reason is battery aging. After three to five years of use, the capacity naturally declines, just like my car which broke down on the roadside two winters ago. Additionally, if the alternator isn't functioning properly, it affects charging efficiency. For example, if the belt is loose or the coil is damaged, the battery won't charge while the engine is running. Weather also plays a significant role. When temperatures are too low, the electrolyte activity weakens, and the high current demand for starting can more easily drain the battery. Leaving the car parked for extended periods without starting it leads to cumulative self-discharge, which can be severe. Frequent short trips are another issue—starting the engine and driving only a few kilometers each time doesn't provide enough charge before the next use. To avoid these problems, regularly check the battery voltage, which should be above 12 volts, and avoid leaving headlights on when the engine is off. If you notice difficulty starting the car, replace the battery or have it inspected as soon as possible.
