Model years Mercedes-Benz C-Class
2007 Mercedes-Benz C-Class
This year drew an ordinary 280 complaints for a Mercedes-Benz C-Class — the model's median is 254. What they were about is the unusual part: 33.6% of them mention tank, against 11% across the model's other years.
NHTSA opened a defect investigation into this model year.
| Complaints filed | 280 |
|---|---|
| Median for this model | 254 |
| Involving a crash | 11 |
| Involving a fire | 5 |
| Recalls | 0 |
| EPA combined | 20 mpg |
What the complaints were about
- tank — 33.6% of this year's complaints, against 11% across the model's other years (3.1×). Owners wrote it as: tank, smell, gasoline, gas tank.
- fuel — 23.2% of this year's complaints, against 4.6% across the model's other years (5×).
- strong — 30.7% of this year's complaints, against 10.9% across the model's other years (2.8×). Owners wrote it as: strong, odor, leak, fuel odor.
Words owners used for the same problem are counted together, so a fault written four different ways is measured once. Grouped by which complaints they appear in, not by a list anyone wrote in advance.
What owners wrote
STRONG RAW FUEL ODOR WAS NOTICED AFTER FILL UP ON MULTIPLE OCCASIONS. INVESTIGATION FOUND THAT BOTH THE FUEL PUMP HOUSING AND THE FUEL SENDER HOUSINGS WERE CRACKED ALLOWING RAW FUEL TO LEAK OUT. THIS IS EXACTLY THE SAME AS THE E CLASS RECALL. THIS RECALL NEEDS…
STRONG FUEL ODOR AFTER FILLING UP MY CAR. AFTER 2 DAYS ODOR WAS STILL THERE. TOOK TO DEALERSHIP TO BE CHECKED AND WAS TOLD THAT THE FUEL SENDING UNITS NEED TO BE REPLACED AND WILL COST $1130.00.. I HAVE VERY LOW MILEAGE ON MY CAR 48,336.. THIS IS A HUGE SAFETY…
Verbatim from NHTSA complaint filings, with identifying details removed.
How this was worked out
Every year of the Mercedes-Benz C-Class was compared against its own history rather than against other cars, which removes popularity and age from the answer — a common car draws more complaints at equal reliability, and an older one has had longer to accumulate them. A year is flagged when it drew at least 2.5× this model's median and at least 50 complaints.
This is a fault record, not a review. Nobody files a federal complaint to say the car was fine, so it shows what tends to go wrong — not whether owners liked it, and not whether it is a good car.
Source: NHTSA complaints, recalls and investigations, retrieved . Look this vehicle up directly on NHTSA's site to check anything here.
Own a 2007 Mercedes-Benz C-Class? What happened to yours?
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