The fuel pump for the AudiA4 1.8L engine is situated inside the main fuse box which is located under the hood of the vehicle. This fuel pump is responsible for supplying fuel from the gas tank of Your vehicle to the fuELRail through the fuel filter. In some of the older vehicles, the fuel is usually supplied to the carburetor. The fuel pump relay is necessary to supply this fuel to the engine for combustion. If the fuel pump relay malfunctions, You will in turn experience problems with Your fuel pump which will decrease Your engines performance. You may experience sputtering, a reduced fuel efficiency, rising engine temperatures, and in some cases where the car wont start due to bad fuel pump.
Paul R
July 16, 2020
The 2004 audi a4 1.8T fuel pump relay is located in the main fuse box under the hood.
Carl
May 5, 2022
My main fuse box isn't under the hood.
Jesse
November 2, 2023
Well you can tell these people never worked on an Audi if they don’t know no better than that. The fuse box on the Audi is on the left side of the dash board it’s on a panel that you pry open im sure you already found that out by now but
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