Car's (Mercedes Benz E350 sdn 2006) fuel gauge showed that the tank was half full. About ten minutes into the drive, the vehicle decelerated automatically from 65 mph to 0 mph. Police were called to prevent a pile on crash. Towed car to dealer who found that there was a gauge malfunction. Replaced gauge. Two months later, the very same problem recurs. Leads me to believe that the fuel gauge is unreliable can create a safety issue especially in freeway driving, the vehicle has been in the shop four times in the last three months to fix these issues. While fixing the sensors, the car had a distinct gasoline odor especially when tank was full. The dealer did a smoke test and concluded that the tank was leaking and had to be replaced. Now, with a new tank, and new sensors for fuel supply, the exact same problem re-occurs. I am very concerned about the safety implications of a fuel gauge malfunction. Please note that the fuel safety light in never triggered when the gauge malfunctions so the driver has no way of knowing that the gas is running out. Updated 01/13/11 uddated 03/24/11

- Scottsdale, AZ, USA