Other Fuel System Tank Assembly problems of the 2008 Mercedes Benz CLS550

The contact owns a 2008 mercedes-benz 550 cls. The contact stated that fuel could be smelled inside the vehicle while driving and while the vehicle was sitting in park. The contact took the vehicle to a dealer for a diagnostic test. The test results showed that a vent inside the fuel tank was defective and needed to be replaced. The contact did not have the vent replaced. The contact called the manufacturer. The manufacturer advised that the failure had become a common problem for the particular year, make and model but a recall had not been issued. The vehicle was not repaired. The failure mileage was 30,000.

I pulled into a service station to fill my tank. After adding fuel to capacity I began to smell fuel in the passenger compartment. I attributed the smell to possibly spilling fuel on myself. I drove the vehicle to work and then home. The next morning I continued to smell fuel in the passenger compartment. I took the vehicle to the dealer for diagnosis and was told that there was a leak in the tank that was splashing / venting into the passenger compartment. The service technician shared that this was a common problem with the cls.