2012 Mercedes Benz C-CLASS problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
1 owner complaints analyzed
0 distinct recall campaigns
Not available median reported failure mileage
Scope: 2012 model year. Data updated: . 0 complaints include usable failure mileage. View data status.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Electrical System is the most frequently named component, appearing in 1 of 1 complaints (100.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 1 | 100.0% |
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 |
|---|---|
| Electrical System | 1 |
| Exterior Lighting | 1 |
Electrical System: 1; Exterior Lighting: 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 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 1 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 |
|---|---|
| 2025 | 1 |
2025: 1
Pattern summary
Electrical System leads the component reports. Braking behavior appears in 1 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 11697258 · 2025-11-03 (November 3, 2025)
The taillights in my 2012 c300 was starting to go out intermittently. At first the notification came on for the brake light but the brake light kept working. Afterwards the rest of the taillights and the sidemarker light went out as well. I went to go take a look and the grounding wire was oxidated and corroded. A known issue in which there was a recall made for the 2008-2011 version of the w204 but this did not apply to the 2012 w204. As of last week my entire rear drivers side light is out which is a safety hazard especially at night. The h…
Owner-reported narrative. Look up ODI 11697258 at NHTSA ↗
Vehicle analysis explorer
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
1 unique complaints in this selection. Analysis snapshot: 2026-10-01.
Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.
Problems by model year
Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.
| Component | 2008 | 2012 |
|---|---|---|
| Electrical System | 753.8%ODI 10508108 · 48,763 miRIGHT REAR TAIL LAMP ASSEMBLY. LIGHTS APPEARED DIM FOR A COUPLE MONTHS AND FIGURED LIGHTS WERE ABOUT IT GO OUT. WENT TO BUY NEW LIGHT BULBS TO REPLACE THE DIMMING BULBS AND WHEN I OPENED THE RIGHT SIDE TO INSTALL THE LIGHT I NOTICED THE ELECTRICAL CORD ATTACHED TO THE ASSEMBLY HAD MELTED. LIGHTS WERE STILL DIM AND CHECKED TO SEE WHAT IT SOUNDED LIKE WHEN I TURNED THE LIGHTS ON AND IT MAKES A CRACKLING ELECTRICAL SOUND. I ASSUME THAT'S WHY IT SMELT LIKE SOMETHING WAS BURNING AND WHY THE 8 PRONG PIECE MELTED. 1-6 ON THE ELECTRICAL PIECE LOOK GOOD… | 1100.0%ODI 11697258The taillights in my 2012 c300 was starting to go out intermittently. At first the notification came on for the brake light but the brake light kept working. Afterwards the rest of the taillights and the sidemarker light went out as well. I went to go take a look and the grounding wire was oxidated and corroded. A known issue in which there was a recall made for the 2008-2011 version of the w204 but this did not apply to the 2012 w204. As of last week my entire rear drivers side light is out which is a safety hazard especially at night. The h… |
| Exterior Lighting | 646.2%ODI 10508108 · 48,763 miRIGHT REAR TAIL LAMP ASSEMBLY. LIGHTS APPEARED DIM FOR A COUPLE MONTHS AND FIGURED LIGHTS WERE ABOUT IT GO OUT. WENT TO BUY NEW LIGHT BULBS TO REPLACE THE DIMMING BULBS AND WHEN I OPENED THE RIGHT SIDE TO INSTALL THE LIGHT I NOTICED THE ELECTRICAL CORD ATTACHED TO THE ASSEMBLY HAD MELTED. LIGHTS WERE STILL DIM AND CHECKED TO SEE WHAT IT SOUNDED LIKE WHEN I TURNED THE LIGHTS ON AND IT MAKES A CRACKLING ELECTRICAL SOUND. I ASSUME THAT'S WHY IT SMELT LIKE SOMETHING WAS BURNING AND WHY THE 8 PRONG PIECE MELTED. 1-6 ON THE ELECTRICAL PIECE LOOK GOOD… | 1100.0%ODI 11697258The taillights in my 2012 c300 was starting to go out intermittently. At first the notification came on for the brake light but the brake light kept working. Afterwards the rest of the taillights and the sidemarker light went out as well. I went to go take a look and the grounding wire was oxidated and corroded. A known issue in which there was a recall made for the 2008-2011 version of the w204 but this did not apply to the 2012 w204. As of last week my entire rear drivers side light is out which is a safety hazard especially at night. The h… |
| Tires | 215.4%ODI 10235787 · 3,000 miTL*THE CONTACT OWNS A 2008 MERCEDES BENZ C300. THE VEHICLE HAS MICHELIN PILOT SPORT TIRES, SIZE 232/35/19 (NA) IN THE FRONT AND SIZE 265/30/19 (NA) IN THE REAR. THE TIRES WERE UNDERINFLATED BY THE DEALER, WHICH CAUSED THE VEHICLE TO DRIVE ROUGHLY. THE VEHICLE HAS BEEN TO THE DEALER SEVERAL TIMES, BUT THE FAILURE HAS NOT BEEN CORRECTED. THE FAILURE MILEAGE WAS 3,000. | 00.0%No examples available for this selection. |
| Air Bags:Frontal | 17.7%ODI 10206950 · 900 miACCIDENT. 2008 MERCEDES C-350 REAR ENDED A DELIVERY TRUCK. MERCEDES BEGAN SMOKING IMMEDIATELY AND CAUGHT FIRE WITHIN ONE MINUTE. WITHIN 3-5 MINUTES ENGINE COMPARTMENT AND PASSENGER COMPARTMENT WERE FULLY ENGULFED IN FLAME. DRIVER ESCAPED BEFORE CAR BURNED. AIRBAGS DID NOT DEPLOY IN THIS FRONT END CRASH. DRIVER HAD CONCUSSION AND FACIAL INJURIES FROM HITTING, POSSIBLY STEERING WHEEL. DRIVER SUSTAINED OTHER INJURIES AS WELL. *TR | 00.0%No examples available for this selection. |
| Air Bags:Frontal:Sensor/Control Module | 17.7%ODI 10216385 · 600 miTL*THE CONTACT OWNS A 2008 MERCEDES BENZ C350. THE DRIVER SIDE AIR BAG WARNING SYSTEM LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER, BUT THEY COULD NOT DETERMINE THE CAUSE OF THE FAILURE. THE DEALER WAS ABLE TO TURN OFF THE LIGHT; HOWEVER, THE FAILURE RECURRED SEVEN DAYS LATER. THE FAILURE MILEAGE WAS 600 AND CURRENT MILEAGE WAS 1,000. | 00.0%No examples available for this selection. |
| Tires:Sidewall | 17.7%ODI 10224491 · 2,100 miTHE TIRES OF THE CAR STARTED GROWING BUMPS ON THE FACE OF THE TIRE. INITIALLY ONE IN ONE TIRE, THEN THE SECOND ONE ON THE SAME TIRE, THEN ONE ON A SECOND TIRE AND FINALLY A THIRD ONE ON THE FIRST TIRE. I CALLED THE DISTRIBUTOR AND WAS TOLD TO BUY NEW TIRES OR GO TO THE TIRE MANUFACTURER FOR WARRANTY. THIS IN MY OPINION IS A SERIOUS SECURITY RISK THAT THE MANUFACTURERS ARE NOT TAKING SERIOUSLY. *TR | 00.0%No examples available for this selection. |
Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.
Failure mileage by component
Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.
| Component | Mileage range (25th–75th percentile) | Median | Usable records | Examples |
|---|---|---|---|---|
| No usable records for this analysis. | ||||
Complaint and recall timeline
Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.
Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.
Monthly counts, recall campaigns and complaint examples
| Month | Complaints | Campaigns announced | Examples |
|---|---|---|---|
| 2024-11 | 0 | None | No examples available for this selection. |
| 2024-12 | 0 | None | No examples available for this selection. |
| 2025-01 | 0 | None | No examples available for this selection. |
| 2025-02 | 0 | None | No examples available for this selection. |
| 2025-03 | 0 | None | No examples available for this selection. |
| 2025-04 | 0 | None | No examples available for this selection. |
| 2025-05 | 0 | None | No examples available for this selection. |
| 2025-06 | 0 | None | No examples available for this selection. |
| 2025-07 | 0 | None | No examples available for this selection. |
| 2025-08 | 0 | None | No examples available for this selection. |
| 2025-09 | 0 | None | No examples available for this selection. |
| 2025-10 | 0 | None | No examples available for this selection. |
| 2025-11 | 1 | None | ODI 11697258The taillights in my 2012 c300 was starting to go out intermittently. At first the notification came on for the brake light but the brake light kept working. Afterwards the rest of the taillights and the sidemarker light went out as well. I went to go take a look and the grounding wire was oxidated and corroded. A known issue in which there was a recall made for the 2008-2011 version of the w204 but this did not apply to the 2012 w204. As of last week my entire rear drivers side light is out which is a safety hazard especially at night. The h… |
| 2025-12 | 0 | None | No examples available for this selection. |
| 2026-01 | 0 | None | No examples available for this selection. |
| 2026-02 | 0 | None | No examples available for this selection. |
| 2026-03 | 0 | None | No examples available for this selection. |
| 2026-04 | 0 | None | No examples available for this selection. |
| 2026-05 | 0 | None | No examples available for this selection. |
| 2026-06 | 0 | None | No examples available for this selection. |
| 2026-07 | 0 | None | No examples available for this selection. |
| 2026-08 | 0 | None | No examples available for this selection. |
| 2026-09 | 0 | None | No examples available for this selection. |
| 2026-10 (partial) | 0 | None | No examples available for this selection. |
Emerging complaint spikes
Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.
This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.
No complete months meet the spike thresholds for this selection.
Equal-age model-year comparison
Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.
2008: 3 complaints · 2012: 0 complaints
| Model year | Through age 0 | Through age 1 | Through age 2 |
|---|---|---|---|
| 2008 | 3 | 3 | 3 |
| 2012 | 0 | 0 | 0 |
Date coverage across each selected cohort
| Year | Incident dates used | Filing date fallbacks | Excluded dates |
|---|---|---|---|
| 2008 | 12 | 0 | 1 |
| 2012 | 1 | 0 | 0 |
Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.
Components reported together
Each cell counts unique complaints naming both components. Open a nonzero cell for examples.
| Component | Electrical System | Exterior Lighting |
|---|---|---|
| Electrical System | — | 1ODI 11697258The taillights in my 2012 c300 was starting to go out intermittently. At first the notification came on for the brake light but the brake light kept working. Afterwards the rest of the taillights and the sidemarker light went out as well. I went to go take a look and the grounding wire was oxidated and corroded. A known issue in which there was a recall made for the 2008-2011 version of the w204 but this did not apply to the 2012 w204. As of last week my entire rear drivers side light is out which is a safety hazard especially at night. The h… |
| Exterior Lighting | 1ODI 11697258The taillights in my 2012 c300 was starting to go out intermittently. At first the notification came on for the brake light but the brake light kept working. Afterwards the rest of the taillights and the sidemarker light went out as well. I went to go take a look and the grounding wire was oxidated and corroded. A known issue in which there was a recall made for the 2008-2011 version of the w204 but this did not apply to the 2012 w204. As of last week my entire rear drivers side light is out which is a safety hazard especially at night. The h… | — |
Co-reporting does not establish that one component caused another concern.
Recurring narrative patterns
Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.
0 patterns with matching reports.
No narratives match the published patterns.