The Location of the Fuel Relay on a Mercedes

1. Ensure that the Mercedes-Benz engine is turned off.
2. Examine the rear compartment area on the passengers side of the trunk area.
3. Unscrew the bolts of the trim panel with a socket wrench. Lift the panel off and set the component aside. The fuel pump relay will be mounted in the fenderwell, identifiable as a black rectangular block similar in appearance to a wall cell phone charger.