There are a few possible causes for your Mercedes-Benz 380 SL to act like it is running out of gas when the tank is full. One possibility is a faulty fuel filter. A clogged fuel filter can restrict the flow of fuel to the engine, causing the car to sputter and stall. Another possibility is a faulty fuel pump. A weak fuel pump may not be able to deliver enough fuel to the engine, especially at high speeds or under heavy acceleration.
To diagnose the problem, you can start by checking the fuel pressure. If the fuel pressure is low, it could be an indication of a faulty fuel filter or fuel pump. You can also try cleaning the fuel filter and checking the fuel lines for any kinks or blockages. If you are still experiencing problems, it is best to take your car to a qualified mechanic for further diagnosis and repair.
