2012 Mercedes-Benz S350: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
7 owner complaints analyzed
0 distinct recall campaigns
54,500 mi median reported failure mileage
Scope: 2012 model year. Data snapshot: . 7 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Engine is the most frequently named component, appearing in 3 of 7 complaints (42.9%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 1 | 14.3% |
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 |
|---|---|
| Engine | 3 |
| Fuel/Propulsion System | 2 |
| Power Train | 2 |
| Vehicle Speed Control | 2 |
| Unknown Or Other | 1 |
Engine: 3; Fuel/Propulsion System: 2; Power Train: 2; Vehicle Speed Control: 2; Unknown Or Other: 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 | 1 |
| 50,000 to 74,999 | 6 |
| 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: 1; 50,000 to 74,999: 6; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
50,000 to 74,999 miles has the most reports with usable mileage (6). 0 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 |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2019 | 1 |
2015: 2; 2016: 4; 2019: 1
Pattern summary
Engine leads the component reports. Transmission and shifting 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.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10703516 · 2015-04-03 (April 3, 2015)
WHEN I CLOSED THE HOOD, A SECTION OF THE RADIATOR GRILL BROKE. *TR
Owner-reported narrative. 25,000 miles reported. Look up ODI 10703516 at NHTSA ↗
Owner report 10712016 · 2015-04-21 (April 21, 2015)
TL* THE CONTACT OWNS A 2012 MERCEDES BENZ S350. WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE DECELERATED WITHOUT WARNING. THE CONTACT THEN COASTED OVER TO THE EMERGENCY LANE AND THERE WERE NO WARNING LIGHTS ILLUMINATED. THE VEHICLE RESTARTED; HOWEVER, THE FAILURE RECURRED MULTIPLE TIMES. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE TECHNICIAN DIAGNOSED THAT THE SIDE CHARGE AIR HOSE INTO THE THROTTLE ACTUATOR WAS TORN AND CAUSED THE LOSS OF HOSE PRESSURE. BOTH THE LEFT AND RIGHT HOSE NEEDED TO BE REPLACED. THE VEHICLE WAS …
Owner-reported narrative. 50,000 miles reported. Look up ODI 10712016 at NHTSA ↗
Owner report 10852448 · 2016-03-30 (March 30, 2016)
WHILE DRIVING AT FREEWAY SPEEDS CAR WENT INTO LIMP MODE. ENGINE RMP WERE LIMITED TO 1500RPM AND SPEED DROPPED TO 25MPH.THIS HAPPENED 3 TIMES DURING WEEK OF 3/14/16 AND AGAIN ON 3/22/16. HAD TO MAKE DEFENSIVE EMERGENCY MANEUVER TO STEER THE CAR AWAY FROM THE TRAFFIC LANES AND STOP ON THE SIDE OF THE FREEWAY. WAS ALMOST REAR ENDED BY A SEMI. CAR HAD TO BE TURNED OFF AND RESTARTED TO COME BACK TO NORMAL DRIVING MODE. CAR WAS TAKEN TO MERCEDES DEALER AND IT WAS DIAGNOSED TO BE A BAD TORQUE CONVERTER CAUSING THIS LIMP MODE. DEALER REPAIRED THE CAR B…
Owner-reported narrative. 52,000 miles reported. Look up ODI 10852448 at NHTSA ↗
Owner report 10899403 · 2016-08-30 (August 30, 2016)
VEHICLE ENTERED LIMP HOME MODE WHILE ENTERING INTERSECTION. DEALERSHIP SAID CODES DID NOT INDICATE AN ISSUE AND COULD NOT REPRODUCE PROBLEM. ONLY ACTIONS TAKEN WAS A COMPUTER TEST AND ROAD TEST. AFTER LEAVING THE DEALER, THE VEHICLE ENTERED THE LIMP HOME MODE AGAIN THIS TIME ON THE HIGHWAY. DEALER THEN REPLACED TWO SENSORS AT THE TURBO. AFTER RETURNING THE VEHICLE TO ME, IT ENTERED THE LIMP HOME MODE AGAIN, ALSO WHILE DRIVING ON THE HIGHWAY. THIS TIME, DEALER REPLACED THE TURBO WHEN IT WAS BROUGHT BACK IN FOR REPAIR. THE VEHICLE STILL ENTERED T…
Owner-reported narrative. 61,750 miles reported. Look up ODI 10899403 at NHTSA ↗
Owner report 10926405 · 2016-11-16 (November 16, 2016)
"TAKATA RECALL" THE VEHICLE SLIPS INTO A LIMP MODE WHILE DRIVING. THIS HAVE HAPPENED SEVERAL TIMES. I'M TAKING IT TO THE MB DEALER THIS WEEKEND. 11/16/2016. 57KMILES
Owner-reported narrative. 57,000 miles reported. Look up ODI 10926405 at NHTSA ↗
Owner report 10928395 · 2016-11-28 (November 28, 2016)
I DID SOME RESEARCH ON MERCEDES 3.0L DIESEL MOTORS AND THERE SEEMS TO BE AN ISSUE WITH THE SEAL FAILING ABOUT 50,000 MILES CAUSING THE MOTOR TO LEAK OIL AND THE SEAL AS WELL AS THE OIL COOLER NEED TO BE REPLACED. IT IS SUCH A COMMON PROBLEM ON THE 3.0L DIESEL ENGINES THAT WHEN YOU CALL ANY REPAIR SHOP THE FIRST THING THEY ASK IS IF THE CAR IS A DIESEL. ALSO THE SEAL REPLACEMENT IS ALL OVER THE MERCEDES BLOGS SAYING THE SAME ISSUE ON THE 3.0L DIESELS. THOUGHT IT MIGHT BE SOMETHING TO LOOK INTO AS IT IS AN ENGINE SEAL PROBLEM AND IS OCCURRING CON…
Owner-reported narrative. 54,500 miles reported. Look up ODI 10928395 at NHTSA ↗
Owner report 11281615 · 2019-11-21 (November 21, 2019)
ENGINE HAS OIL LEAK SIMILAR TO MANY 2011-2012 DIESEL MODEL.
Owner-reported narrative. 70,000 miles reported. Look up ODI 11281615 at NHTSA ↗
Recall history
0 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
No recall campaigns are recorded in this snapshot.