1. Bleeding the Fuel System: When the fuel system runs dry, air can enter the fuel lines and injector components. This air must be removed before the engine can start properly. The bleeding process involves loosening specific screws or connections on the fuel lines to allow the air to escape while simultaneously operating the starter or fuel pump.
2. Priming the Fuel System: Once the air has been bled out, the fuel system needs to be primed. This involves manually pumping fuel into the system using a priming pump or by cranking the engine for short intervals without starting it. This helps fill the fuel lines and injectors with diesel.
3. Starting the Engine: After the fuel system is bled and primed, you can attempt to start the engine. It may take a few tries as the engine needs to build up enough fuel pressure to start properly. Be patient and continue cranking the engine until it eventually starts.
In summary, running a diesel Mercedes C220 CDI W202 out of fuel requires more than just refilling the fuel tank. You usually need to bleed the fuel system to remove air, prime the system by pumping fuel, and then attempt to start the engine. It may take several tries, but eventually, the engine should start and run normally.
