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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
51,817 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 Mercedes-Benz CLS500 fuel system problems

fuel system problem

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2006 Mercedes-Benz CLS500 Owner Comments

problem #10

Mar 182014

CLS500 8-cyl

  • 66,397 miles


The car gas sensor was not working. Vehicle stalled in the middle of busy intersection gas tank read that there was 1/4 tank. Could have caused a major collision. Problem with the fuel system, tank and sensors. This is the 3rd time. Fuel module not working correctly. All repairs have been done through Mercedes dealership. This problem needs to be looked at I could have been killed. The system was replaced by Mercedes twice. On going smell of gasoline.

- Orange, CA, USA

problem #9

Aug 292013

CLS500 8-cyl

  • 61,245 miles
Smell of gasoline. Fuel tank leaking. Sensors faulting.

- Orange, CA, USA

problem #8

Apr 132011

CLS500 8-cyl

  • 39,509 miles
Very strong smell of gasoline. Car fuel tank reading incorrectly. Fuel sending unit leaking. Raw fuel leaking.

- Orange , CA, USA

problem #7

Apr 132013

CLS500 8-cyl

  • 39,509 miles


Very strong smell of gasoline. Car fuel tank reading incorrectly. Fuel sending unit leaking. Raw fuel leaking.

- Orange , CA, USA

problem #6

Sep 152011

CLS500 8-cyl

  • 29,000 miles
After I fill the Cls500 mb tank with gas, and drive into the residential garage, an hour later the garage is filled with raw gas fumes. If I don't fill the tank completely, it seems to be okay. Sometimes the fumes enter the home, and my guests can smell them. It's quite embarrassing when you own a mb. The guests leave right away.

- Peoria, AZ, USA

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problem #5

Feb 032014

CLS500 8-cyl

  • miles
Several times I have noticed a strong odor of gasoline inside the car after filling up at the gas station. I have noticed several other complaints of the same nature. I noticed a recall # 2008-02001 seems to address this Mercedes-Benz issue but am not sure it applies to the Cls500. I think it applies to the cls550 and the E-type but it should apply to the Cls500 since the underpinnings of this car is the E-type. Please assist as I would like to have this safety issue addressed by Mercedes-Benz and judging from the number of complaints feel that Mercedes-Benz should correct this apparent defect at no charge.

- Lorton, VA, USA

problem #4

Dec 192013

CLS500 8-cyl

  • 99,000 miles


Bought this car less than 30 days ago and it has very strong gas smell every time after refueling inside and outside the car...I have to leave my garage door open because of the strong gas fumes in the garage that also creep into the house!!

- Brandon, FL, USA

problem #3

Dec 062013

CLS500 8-cyl

  • 78,510 miles
After filling my car, I started smelling a gas odor coming from the driver side back seat area when I reach home about 2 miles away from the service station where I filled up. I figure the smell would have go away but everytime I drive my car I can be assured to smell that gas odor in the rear driver side passenger area which now is very annoying for a car I paid so much money for.....

- Roosevelt, NY, USA

problem #2

Aug 232013

CLS500 8-cyl

  • 105,000 miles
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.

- Piedmont, OK, USA

problem #1

Dec 012011

CLS500 8-cyl

  • miles
Leaking fuel from crack in fuel tank. Service advisor at local Mercedes Benz dealership states crack is from seal found on top of tank. Required replacing of fuel tank and fuel pump seals fumes from fuel seeped into vehicle and back seat cushions with very strong smell of fuel. Seats still smell like fuel, thus car with smell of fuel. Very uncomfortable with burning sensation to nose. Service advisor states this is second incident with cracked fuel tank this year.

- Mercedes, TX, USA

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