How to Locate the Fuel Filter in Mercedes-Benz GLA?
2 Answers
The fuel filter is located near the fuel tank at the rear underside of the vehicle, and the model number of the fuel filter is GLA45. Below is relevant information about Mercedes-Benz fuel filters: 1. The filter element of the fuel filter mostly uses filter paper, and some fuel filters use nylon cloth or polymer materials. The main function is to filter out impurities in the gasoline. 2. The role of the fuel filter is to remove water and impurities from the gasoline. Below is relevant information about replacing the filter: 1. First, remove the vehicle key and disconnect the fuel pump fuse or the vehicle power supply to prevent the fuel pump from pumping out gasoline during disassembly. 2. Next, remove the rear seat cushion and the cover on the fuel pump, at which point you can see the fuel pump assembly. 3. The fuel pump assembly is secured by a black retaining ring. After disconnecting the wiring harness and fuel lines on the fuel pump, a special tool is required to remove this retaining ring. 4. After removing the retaining ring, the fuel pump assembly can be taken out. Replace the corresponding components of the old fuel filter with the new fuel filter assembly.
I've replaced the fuel filter on my Mercedes-Benz GLA several times. It's usually built into the fuel tank, so you'll need to lift the vehicle or find a safe spot to check underneath. The fuel tank is located beneath the rear of the car, and the filter is connected to the fuel pump module, requiring you to pry open the access cover. The steps involve first disconnecting the battery's negative terminal to avoid sparks, then cleaning the surrounding area, using a wrench to remove the fuel lines and electrical connectors, and preparing a container to catch any spilled gasoline. The whole process takes at least an hour, with special attention needed to differences in model years—my 2018 model has the filter directly visible under the trunk's floor cover. It's recommended to replace it every 60,000 kilometers to prevent fuel system clogs that could affect starting. Before starting, it's best to consult the owner's manual or watch professional tutorial videos.
