Mercedes Benz CLS500 owners have reported 23 other fuel system related problems since 1996. Table 1 shows the 6 most common other fuel system problems. The number one most common problem is related to the vehicle's other fuel system tank assembly (9 problems). The second most common problem is related to the vehicle's other fuel system pump (6 problems). For details of each of the problem category, use the links in the table.
Very strong gas smell inside the car and outside the car. Gas leaking on the floor from gas tank area. Read details...
Fuel pump leaks and vapor smell is very prevalent. Fuel tank assembly has been ordered, but apparently mercedes is very slow on shipping the parts because there are so many cars with this same problem. Besides the smell, I think this could be dangerous. Read details...
Bought the 2006 cls 500 2 years ago, since that second day I have issues with sbc module, I call mb dealer they told me my car was out of warranty, since the production date was 2004, okay after that I try several other mechanics and nobody have the star tool to fix up, the car is not safe to Read details...
When fuel tank is filled completely there is an extremely strong odor of gasoline inside and outside car. Fuel pump has been replaced and the fuel tank seals have been replaced multiple times with no improvement. Gas cap warning light now comes on intermittently and check engine light remains on. Read details...
Fuel sending unit leaks after filling up gas tank. Holds the raw gas in top of sending unit. Causes inside of car to fill up with raw gas smell, gets really bad on hot days. Smells like raw gas in garage. Fuel sending unit is under back seat behind driver, which could be very dangerous. Read details...