2011 Mercedes-Benz C350 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
26 owner complaints analyzed
4 distinct recall campaigns
52,861 mi median reported failure mileage
Scope: 2011 model year. Data snapshot: . 11 complaints include usable failure mileage.
Most common problems
Air Bags is the most frequently named component, appearing in 16 of 26 complaints (61.5%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Fuel system concerns | 3 | 11.5% |
| Electrical and battery issues | 2 | 7.7% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Air Bags | 16 |
| Fuel/Propulsion System | 4 |
| Unknown Or Other | 4 |
| Electrical System | 1 |
| Fuel System, Gasoline | 1 |
Air Bags: 16; Fuel/Propulsion System: 4; Unknown Or Other: 4; Electrical System: 1; Fuel System, Gasoline: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 4 |
| 50,000 to 74,999 | 3 |
| 75,000 to 99,999 | 3 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 1; 25,000 to 49,999: 4; 50,000 to 74,999: 3; 75,000 to 99,999: 3; 100,000 to 149,999: 0; 150,000 and above: 0
25,000 to 49,999 miles has the most reports with usable mileage (4). 15 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2017 | 11 |
| 2018 | 8 |
| 2019 | 4 |
| 2020 | 1 |
| 2022 | 2 |
2017: 11; 2018: 8; 2019: 4; 2020: 1; 2022: 2
Pattern summary
Air Bags leads the component reports. Fuel system concerns appears in 3 complaint narratives. Electrical and battery issues appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11150330 · 2018-11-09 (November 9, 2018)
WHEN FUEL TANK IS ABOUT 75%-100% FULL, THE CAR WILL SMELL HEAVILY OF GASOLINE INSIDE AND AROUND THE REAR OF THE VEHICLE. UPON INSPECTION, FUEL PUMP COVER/CAP SEEMS TO BE CRACKED AND LEAKING FUEL. ENGINE CODE P0456.
Owner-reported narrative. 68,000 miles reported. Look up ODI 11150330 at NHTSA ↗
Owner report 11174993 · 2019-02-07 (February 7, 2019)
I HAD A FUEL PUMP FLANGE CRACK AND LEAK FUEL WHEN TANK WAS FILLED. ALSO, THE CHECK ENGINE LIGHT THREW CODES RELATING TO SMALL LEAKS IN THE SYSTEM AND AS SUCH WOULDN'T PASS STATE INSPECTION. I HAD TO GET THESE FIXED -- BASICALLY BOTH SIDES (FUEL PUMP/FILTER/SENDING UNIT) AT THE COST OF ALMOST $1,000 AT A LOCAL SHOP. ALL VIN SEARCHES DIDN'T SHOW THAT MY CAR WAS UNDER RECALL FOR THE FUEL SYSTEM, HOWEVER I NOTICED THAT MANY OTHER MODELS IN YEAR 2011-2012 WERE UNDER RECALL: SEE NHTSA CAMPAIGN ID #12V557000. I BELIEVE THIS MODEL SHOULD BE INCLU…
Owner-reported narrative. 71,900 miles reported. Look up ODI 11174993 at NHTSA ↗
Owner report 11054431 · 2017-12-13 (December 13, 2017)
WE HAVE THE RECALL AND I AM SORRY I DO NOT HAVE THE NUMBER WHERE THE WIRING HARNESS TO THE TAIL LAMPS COULD MELT CATCHING FIRE CAUSING THE REAR LAMP TO GO OUT. MINE HAS DONE SO. MY WIFE DRIVES 35 MILES 1 WAY TO WORK EACH DAY AND BECAUSE IT WAS AT NIGHT WHEN THIS HAPPENED I HAD TO GO OUT ON I-64 WHICH IS A 70MPH INTERSTATE HIGHWAY AND DO A TEMP FIX SO SEE COULD GET HOME. I HAVE CONTACTED THE DEALER WHICH AT TIME PARTS WERE NOT AVAILED AND THE DEALER WAS TO CONTACT ME WHEN THEY RE AVAILED, WHICH THE YOUNG LADY EVEN WHEN THEY SENT OUT THE CONTACT …
Owner-reported narrative. 82,000 miles reported. Look up ODI 11054431 at NHTSA ↗
Owner report 11162877 · 2018-12-21 (December 21, 2018)
FUEL LEEK UNDER SEAT PASSENGER SIDE AS WELL STRONG SMELL COMING FROM EVERYWHERE WHEN THE GAS THANK IS FILLED AT THE GAS STATION.I CALLED THE MBUSA FOR HELP WITH THIS PROBLEM AND THEY REFOCUSED TO HELP .THIS IS BEEN UNGOING PROBLEM WITH THE MERCEDES AS I HAD SAME PROBLEM WITH MY 2007 S550 AS WELL MY 2007 E350 .THIS TIME I'M EXTREMELY SCARED ,IF THIS PROBLEM THAT I HAVE WITH MY CAR IT'S GOING TO CAUSE THE HEALTH DAMAGE TO ME AND MY FAMILY , AND EVERY TIME I OPEN MY GARAGE DOOR IN THE MORNING I'M AFRAID THE ELECTRICAL LIGHT OR MOTOR WOULD SPARK AN…
Owner-reported narrative. 100 miles reported. Look up ODI 11162877 at NHTSA ↗