How Often Should the Passat Fuel Filter Be Replaced?
1 Answers
The Passat fuel filter should be replaced every 20,000 kilometers. If you consistently refuel at the three major oil companies, the replacement interval can be slightly extended. The built-in filter is best replaced at 35,000 kilometers, while the external filter is optimal at 15,000 kilometers. Both types of filters can be extended slightly longer, but this may cause unnecessary damage to components such as the fuel pump and fuel injectors. More details are as follows: 1. The primary function of the fuel filter in a car is to remove impurities from the gasoline, thereby preventing clogging of the fuel injectors. Currently, fuel filters in cars are divided into two main types: built-in and external. Due to differences in installation methods, their replacement cycles also vary. 2. When replacing the fuel filter, you can ask the mechanic to avoid spilling the gasoline inside the filter. After the mechanic removes the fuel filter, shake it vigorously a few times, then observe the level of dirt in the drained gasoline. 3. Generally, gasoline drained from a fuel filter used for 10,000 kilometers shows no obvious dirt, whereas gasoline from a filter used for 20,000 kilometers often appears black, resembling ink. These black substances are impurities from the gasoline, which detach after shaking the filter vigorously, resulting in the dark, ink-like appearance of the gasoline.
