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!! *TR
2006 mercedes-benz CLS-Class fuel system problems
moderate 21 complaints filed with NHTSA · avg repair $1,200
Complaints
21
Recalls
0
Crashes
0
Avg fix
$1,200
What owners are reporting 3 most recent
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. .... *TR
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 ADV…
Common questions
How serious is the fuel system problem on the 2006 mercedes-benz CLS-Class?
It's a documented issue but not catastrophic. 21 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
At what mileage does the fuel system typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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