Where is the fuel pump relay on a 1988 Mercedes 420 sel located?

The fuel pump relay on a 1988 Mercedes 420 SEL is typically located in the fuse box, which is found in the engine compartment. Specifically, it is often situated near the driver's side fender. You can identify it by referring to the diagram on the fuse box cover for its exact position. If you're having trouble, consulting the vehicle's service manual may provide additional guidance.