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2011 Mercedes-Benz C300 Fuel/propulsion System Problems

NHTSA component category: FUEL/PROPULSION SYSTEM · data through 07/12/2026

38Fuel/propulsion System complaints
7.9%Of all 480 complaints
#4Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How fuel/propulsion system ranks on this vehicle

AIR BAGS250 · 52.1%
SUSPENSION57 · 11.9%
FUEL/PROPULSION SYSTEM38 · 7.9%
STRUCTURE:BODY34 · 7.1%

Share of the 480 complaints citing each category; one complaint can cite several. Full breakdown on the 2011 Mercedes-Benz C300 overview page.

What owners report

“THERE APPEARS TO BE IS A CRACK ON THE FUEL FILTER. THIS CRACK HAS RESULTED IN A FUEL LEAK, INCREASING THE RISK OF A FIRE…”NHTSA complaint 11030861 — filed 10/02/2017
“THE CONTACT OWNS A 2011 MERCEDES-BENZ C300. THE CONTACT STATED THAT A STRONG FUEL ODOR WAS PRESENT INSIDE THE CABIN OF THE VEHICLE. WHEN FUELING…”NHTSA complaint 10995556 — filed 06/16/2017
“ABOUT 5 MONTHS AGO I SMELLED A STRONG ODOR OF GAS FUMES OMITTING FROM MY CAR WHILE I WAS DRIVING ON THE FREEWAY. I LIVE…”NHTSA complaint 10990845 — filed 05/22/2017

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Fuel/propulsion System complaints by year filed

12015520174201832019102020520212202252023120241202512026

Frequently asked questions

Does the 2011 Mercedes-Benz C300 have fuel/propulsion system problems?

Fuel/propulsion System is the #4 most-reported problem area on the 2011 Mercedes-Benz C300: 38 of 480 complaints on file (7.9%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2011 Mercedes-Benz C300 have in total?

480 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 15 involved a crash, 6 involved a fire, 14 reported injuries, and none reported deaths.

What does NHTSA's fuel/propulsion system category include?

NHTSA assigns each complaint to standard component categories; this page reports the FUEL/PROPULSION SYSTEM category exactly as NHTSA defines and records it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.