1991 Mercedes Benz 300 SERIES problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
3 owner complaints analyzed
0 distinct recall campaigns
83,500 mi median reported failure mileage
Scope: 1991 model year. Data snapshot: . 2 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Electrical System:12v/24v/48v Battery is the most frequently named component, appearing in 1 of 3 complaints (33.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 2 | 66.7% |
| Transmission and shifting | 1 | 33.3% |
| Braking behavior | 1 | 33.3% |
| Steering behavior | 1 | 33.3% |
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 |
|---|---|
| Electrical System:12v/24v/48v Battery | 1 |
| Electrical System:Wiring | 1 |
| Engine And Engine Cooling:Cooling System | 1 |
| Engine And Engine Cooling:Engine | 1 |
| Exterior Lighting:Headlights | 1 |
| Exterior Lighting:Tail Lights | 1 |
| Power Train:Automatic Transmission | 1 |
| Power Train:Automatic Transmission:Lever And Linkage:Column Shift | 1 |
Electrical System:12v/24v/48v Battery: 1; Electrical System:Wiring: 1; Engine And Engine Cooling:Cooling System: 1; Engine And Engine Cooling:Engine: 1; Exterior Lighting:Headlights: 1; Exterior Lighting:Tail Lights: 1; Power Train:Automatic Transmission: 1; Power Train:Automatic Transmission:Lever And Linkage:Column Shift: 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 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 1; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 1; 150,000 and above: 0
25,000 to 49,999 miles has the most reports with usable mileage (1). 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 |
|---|---|
| 2001 | 1 |
| 2004 | 1 |
| 2005 | 1 |
2001: 1; 2004: 1; 2005: 1
Pattern summary
Electrical System:12v/24v/48v Battery leads the component reports. Electrical and battery issues appears in 2 complaint narratives. Transmission and shifting appears in 1 complaint narratives. 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 10104057 · 2004-12-18 (December 18, 2004)
WIRING IN ENGINE COMPARTMENT AND ALL RUBBER HOSES ON THE VACUUM SYSTEM HAVE DETERIORATED .THE WIRING CONNECTORS HAVE ALL FELL APART AND THE HOSES HAVE TURNED HARD AND FELL APART. *JB
Owner-reported narrative. 118,000 miles reported. Look up ODI 10104057 at NHTSA ↗
Owner report 8000846 · 2001-12-18 (December 18, 2001)
FORMANIC TRANSFER CASE FAILED, WAS REPLACED AT 42718 MILES, FORMANIC LIGHT CAME ON, HAD TRANSFER CASE REPLACED A SECOND TIME ON 1/10/01 AT 84,000 MILES, HOWEVER, FAILED TO WORK PROPERLY, FAILURE OF INTERNAL BEARINGS, CAUSED A LOSS OF STEERING AND BRAKING POWER. TOOK VEHICLE BACK TO DEALER, WHERE MECHANIC ATTEMPTED TO REPAIR FOR A THIRD TIME. DEALER URGED CONSUMER TO DISPOSE OF VEHICLE WHOLESALE, NOT WORTH REPAIRING.*AK THE RIGHT FRONT DOOR WINDOW SWITCH WAS REPLACED. LOW COOLANT LIGHT CAME ON WITH COOLANT IN SYSTEM DUE TO COOLANT LEVEL SENSOR…
Owner-reported narrative. Look up ODI 8000846 at NHTSA ↗