Total Complaints
3 filings
MERCEDES-BENZ CLK63 · model year
3 NHTSA complaints. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2007MERCEDES-BENZCLK63 carries 3 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
The most frequently selected component label in reports for the 2007 CLK63 is fuel/propulsion system with 3 filings. Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause.
NHTSA currently has 15 investigation files overlapping the 2007 CLK63. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
Total Complaints
3 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| FUEL/PROPULSION SYSTEM | 3 |
FUEL TANK LEAK
Mileage: 74,000
MY 2007 MERCEDES CLK63 HAS FOR SOME 5 OR SO YEARS NOW SMELLED STRONGLY OF GASOLINE UPON FILLING UP. IRONICALLY THE ODOR IS STRONGEST WHILE STANDING OUTSIDE OF THE CAR ON THE DRIVER'S SIDE. THE SMELL DOES SUBSIDE AS THE FUEL LEVEL DECREASES SOMEWHAT. THE DEALER (EURO MOTORCARS BETHESDA (MD) ATTEMPTED TO REPAIR THE PROBLEM 5 OR SO YEARS AGO BUT TO NO AVAIL (EVEN THOUGH I DID PAY FOR THE REPAIRS), THE ISSUE WAS ONLY TEMPORARILY RESOLVED. MY SERVICE ADVISOR LOOKED AT, AND PRONOUNCED MY FUEL PUMP AND GASKET AS BEING THE CULPRITS. A SEPARATE REVIEW BY A SUBSEQUENT ADVISOR SAID THE SAME. THE SMELL IS SO STRONG AS TO BE AN EMBARRASSMENT (AT LEAST) FOR WHAT IS OTHERWISE A SUPER CAR WITH ONLY 65000 MILES ON IT. AT WORST, I'M AFRAID THAT A SPARK OR SOMETHING CUD SET IT OFF (NOTE: WE PARK IT BOTH AT HOME AND AT OFFICE IN A GARAGE STRUCTURE WHERE THE SMELL, AND IT SEEMS THE DANGER, IS ONLY MAGNIFIED). I WAS MOST RECENTLY QUOTED A PRICE OF $1200 TO FIX THIS PROBLEM FOR WHAT WILL BE A 2ND TIME.
WHEN THE GAS TANK IS FILLED UP FUEL IS LEAKING FROM THE TOP OF THE TANK. AFTER THE CAR IS DRIVEN AND A FEW GALLONS OF FUEL ARE BURNED, THE SMELL IS NO LONGER NOTICEABLE. THE REPAIR FACILITY SAID THE FUEL SENDING UNIT AND NEED TO BE REPLACED.
Mileage: 77,000
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 2007 MERCEDES-BENZ CLK63; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.