1991 Mercedes Benz 500: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
0 owner complaints analyzed
1 distinct recall campaigns
Not available median reported failure mileage
Scope: 1991 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
No owner complaints are recorded for this selection. A complaint can name multiple components.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
No usable records for this chart.
| Category | Count |
|---|
No records.
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. 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.
No usable records for this chart.
| Category | Count |
|---|
No records.
Pattern summary
There is not enough complaint evidence to summarize patterns.
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.
Recall history
1 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
96V175000 · Visibility
Reported: 1996-09-19 (September 19, 1996)
IF ONE OF THE HEADLAMP WIPER ARMS BECOMES MISALIGNED, THE WIPER BALDE CAN LODGE IN THE GROOVE UNDER THE HEADLAMP. IF THE WASHERS ARE ACTIVATED WITH THE WIPER BLADE IN THE MISALIGNED AND LODGED POSITION, THE WASHER PUMP WILL RUN CONTINUOUSLY EXPELLING ALL AVAILABLE FLUID.
Consequence: PUMP OPERATION IN THE ABSENCE OF FLUID CAN CAUSE THE PUMP TO OVERHEAT AND CAUSE A VEHICLE FIRE.
Remedy: DEALERS WILL REPLACE THE HEADLAMP WASHER PUMP ON THESE VEHICLES.
NHTSA campaign record ↗Vehicle analysis explorer
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
0 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 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2003 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Electrical System:Wiring:Front Underhood | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 746.7%ODI 10136413CAR SUDDENLY LOST POWER, DROVE HOME AT VERY REDUCED SPEED. MECHANIC DIAGNOSED IT AS A FAULTY WIRING HARNESS, A COMMON DEFECT ON THIS MODEL CAR 1992 MERCEDES BENZ 500E. *JB | 836.4%ODI 10118292 · 60,000 miTHE ENGINE/FUEL INJECTION WIRING HARNESS OF MY 1993 MERCEDES-BENZ 500E (64,000 MILES), HAS CRACKED INSULATION THROUGHOUT AND IS BEGINNING TO SHORT OUT, WITH THE RISK OF CAUSING DANGEROUS ENGINE MALFUNCTION, AND EVEN FIRE INSIDE MY ENGINE COMPARTMENT. I HAVE READ MANY REPORTS OF OTHER MERCEDES-BENZ CARS OF THE SAME AGE RANGE HAVING THE EXACT SAME ISSUE. THIS IS A KNOW ISSUE WITH MERCEDES THAT THEY REFUSE TO RECALL. *NM | 116.7%ODI 10206785 · 140,000 miENGINE WIRING HARNESS COVERING MATERIAL ON BOTH MY 1994 MB E500'S HAS DETERIORATED CAUSING SHORTS BETWEEN WIRES, ENGINE MISS-FIRING, HABITUAL "CHECK ENGINE" LIGHT BEING ON, ETC. HAVE DISCUSSED ISSUE WITH KNOWLEDGEABLE MB MECHANICS AND THIS IS A KNOWN PROBLEM ON 1991 --> 1996 MB'S. OBVIOUSLY THE WIRE COVERING MATERIAL IS DEFECTIVE AS THIS HARNESS SHOULD LAST THE LIFETIME OF THE CAR. MB AT THE VERY LEAST SHOULD PROVIDE REPLACEMENT HARNESSES AT NO COST TO THE CONSUMERS THAT PURCHASES THEIR AUTOMOBILES. FOR MB TO RESPOND THAT THIS CONDITION IS NORM… | 112.5%ODI 10216864THE ENGINE/FUEL INJECTION WIRING HARNESS OF MY 1995 S500 MERCEDES-BENZ HAS CRACKED INSULATION THROUGHOUT. WIRES ARE EXPOSED. THE CAR IS NOT DRIVABLE AND THE COST IS OVERWHELMING TO REPAIR. I HAVE ALREADY SPENT MUCH IN OTHER UNNECESSARILY REPAIRS. MERC-BENZ SHOULD TAKE RESPONSIBILITY FOR SUCH POOR MATERIALS. *TR | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Electrical System | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 426.7%ODI 10158452 · 81,872 miUPPER ENGINE WIRING HARNESS IN MY 1992 MERCEDES BENZ 500E (81,000 MILES) HAS COMPLETELY DETERIORATED. THE INSULATION HAS BECOME BRITTLE AND CRACKED AND FLAKED OF THE HARNESS CAUSING ELECTRICAL SHORTS WITHIN THE IGNITION SYSTEM CAUSING FAILURE TO START OR RUN CONDITIONS. THROUGH RESEARCH ON THE WEB I HAVE DISCOVERED THIS IS A COMMON SITUATION WITH THE W124 CHASSIS CARS. SINCE IT IS A KNOWN PROBLEM I FEEL THAT MERCEDES BENZ OF NORTH AMERICA IS OBLIGATED TO INITIATE A RECALL OR VOLUNTARILY REPLACE THIS KNOWN FAULTY ITEM. *JB | 313.6%ODI 101679671993 MERCEDES 500E WIRING HARNESS DISINTEGRATED. THE IGNITION MODULE WAS ALSO DEFECTIVE *TS THE DEFECTIVE IGNITION MODULE HAS CUT SPARK TO HALF THE CYLINDERS IN THE ENGINE. *NM | 350.0%ODI 10048557 · 31,000 miCOMPLAINT REGARDING INTERNATIONAL FRAUD AND HARASSMENT PRACTICES INVOLVING MERCEDES BENZ.*MR THE CONSUMER STATED THE VEHICLE HAD JUST OVER 31,000 MILES ON THE VEHICLE, WHEN IT STARTED TO ODOMETER AND ELECTRICAL COMPUTER SWITCH PROBLEMS. THE CONSUMER WAS TOLD MY A MERCEDES BENZ MECHANIC THAT THE ODOMETER PROBLEM COULD NOT BE EXPLAINED AND THE ELECTRICAL COMPUTER SWITCH WAS DESIGNED SO POORLY THAT THE MANUFACTURER STOPPED MAKING THEM AFTER ONLY TWO YEARS. *JB *NM | 450.0%ODI 10216864THE ENGINE/FUEL INJECTION WIRING HARNESS OF MY 1995 S500 MERCEDES-BENZ HAS CRACKED INSULATION THROUGHOUT. WIRES ARE EXPOSED. THE CAR IS NOT DRIVABLE AND THE COST IS OVERWHELMING TO REPAIR. I HAVE ALREADY SPENT MUCH IN OTHER UNNECESSARILY REPAIRS. MERC-BENZ SHOULD TAKE RESPONSIBILITY FOR SUCH POOR MATERIALS. *TR | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 111.1%ODI 10453566 · 120,000 miTL* THE CONTACT OWNS A 2000 MERCEDES BENZ S 500. THE CONTACT STATED THAT THE KEY WAS ABLE TO BE INSERTED IN THE IGNITION BUT COULD NOT BE TURNED. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS CONTACTED BUT THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGES WERE 120,000. | 19.1%ODI 10111549 · 24,000 miWHILE PARKED THE BATTERY DIED. AS A RESULT, THE VEHICLE WOULD NOT UNLOCK. *AK THE VEHICLE HAD MULTIPLE ELECTRICAL SYSTEM PROBLEMS. *NM |
| Electrical System:Wiring | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 16.7%ODI 10000365 · 100,000 miFAULTY WIRING IN THE ENGINE BAY. THE ENGINE WIRING HARNESS IS DISENTIGRATING FOR NO OTHER REASON THAN AGE. AS A RESULT, THE ENGINE IS STARTING TO EXIBIT STALLING ISSUES AND ROUGH RUNNING, ALSO FAULT CODES ARE PRODUCED ON THE CAR COMPUTER. | 522.7%ODI 10130247MERCEDES BENZ WIRING HARNESS DEFECT.*MR THE CONSUMER STATED THE MANUFACTURER NEEDS TO ACKNOWLEDGE THERE IS A PROBLEM WITH THEIR VEHICLES. *JB UPDATED 08/22/06. *JB UPDATED 12/07/15.*JB | 350.0%ODI 10138922 · 130,000 miCONSUMER COMPLAINT: ODI CASE NUMBER: 10137365 COMPONENT: ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD DETAILS: INSULATION ON ELECTRICAL WIRING CRUMBLES TO DUST, RESULTING IN SHORTS, DAMAGED ELECTRONICS, ENGINE STALLING, ABS FAILURE, ETC. IT APPEARS MBZ USED DEFECTIVE INSULATION ON THE ELECTRICAL WIRES IN THE ENGINE COMPARTMENT WIRING HARNESSES. IN ALL LOCATIONS THAT ARE EXPOSED TO HIGHER THAN AMBIENT TEMPERATURE THE INSULATION CRUMBLES TO DUST. . DEALER SAYS 'ITS A VERY COMMON PROBLEM WITH 92-95 MODEL YEARS'. REPLACEMENT HARNESSES COST OVER … | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Unknown Or Other | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 14.5% | 116.7%ODI 10048557 · 31,000 miCOMPLAINT REGARDING INTERNATIONAL FRAUD AND HARASSMENT PRACTICES INVOLVING MERCEDES BENZ.*MR THE CONSUMER STATED THE VEHICLE HAD JUST OVER 31,000 MILES ON THE VEHICLE, WHEN IT STARTED TO ODOMETER AND ELECTRICAL COMPUTER SWITCH PROBLEMS. THE CONSUMER WAS TOLD MY A MERCEDES BENZ MECHANIC THAT THE ODOMETER PROBLEM COULD NOT BE EXPLAINED AND THE ELECTRICAL COMPUTER SWITCH WAS DESIGNED SO POORLY THAT THE MANUFACTURER STOPPED MAKING THEM AFTER ONLY TWO YEARS. *JB *NM | 112.5% | 00.0%No examples available for this selection. | 112.5% | 150.0% | 00.0%No examples available for this selection. | 111.1%ODI 101246952000 MERCEDES BENZ SL 500 HAD THE HOOD LINERS REPLACED THREE TIMES IN 5 YEARS.*MR THE FIRST HOOD LINER BECAME BRITTLE AND DISINTEGRATED. THE SECOND HOOD LINER BECAME POWDERY AND LITERALLY FELL APART LESS THAN 2 YEARS AFTER INSTALLATION. THE CONSUMER WAS TOLD THE HEAD LINER WAS CONSIDERED WEAR AND TEAR. *JB | 00.0%No examples available for this selection. |
| Equipment:Appliance:Air Conditioner | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 16.7% | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 225.0% | 00.0%No examples available for this selection. | 228.6%ODI 546554A HOSE IS MISSING FROM AIR CONDITIONING SYSTEM CAUSING SYSTEM TO BLOW WARM AIR, IT NEVER GETS COLD. *YC | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Air Bags:Frontal | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 112.5%ODI 551702FALSE DEPLOYMENT OF PASSENGER SIDE AIR BAG EXPLODED SPONTANEOUSLY WHILE THE VEHICLE IS PARKED CAUSING INJURY TO THE DRIVER. YH | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 111.1%ODI 8020396CONSUMER STATES THAT WHILE DRIVNG THE VEHICLE SHE WAS INVOLVED IN A COLLISION WHICH CAUSE THE AIR BAGS TO DEPLOYED AT 200 MPH CAUSING A LOT OF PHYSICAL THE DAMAGE ON THE CONSUMER. MR | 00.0%No examples available for this selection. |
| Engine And Engine Cooling | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 14.5%ODI 10200980MY 500E SEDAN WAS EXPERIENCING ERRATIC THROTTLE CONTROL AND INTERMITTENT STALLING WHILE DRIVING, THUS PLACING ME AT RISK OF NO CONTROL OF THE VEHICLE. *TR AN EXAMINATION OF BOTH THE ENGINE WIRING HARNESS AND THROTTLE-BODY SHOWED DISINTEGRATION OF THE WIRES PROTECTIVE INSULATION. BOTH ITEMS WERE REPLACED AT A COST OF APPROX. $1,900. | 00.0%No examples available for this selection. | 112.5%ODI 10312384 · 79,000 miON FEB 18, I DROVE MY MB S500, 1995 WITH MY FAMILY ON ORANGE HIGHWAY 5 AT 70M/H AND SUDDENLY MY CAR ENGINE STOPPED WITHOUT MY KNOWLEDGE, I WAS ALMOST GET HIT BY THE TRUCK IN MY BACK. I PULLED THE CAR TO THE SIDE AND RESTART THE ENGINE AND IT STILL WORKED BUT WITH A RED SIGNAL "CHECK THE ENGINE". I DROVE TO THE NEARBY MB REPAIR STORE AND IT IS A PROBLEM CALLED " ENGINE WIRE HARNESS" DEFECT. THE PROBLEM ALMOST GET ME AND BROTHER KILLED. I AM STILL TERRIFIED. *TR | 116.7%ODI 10457368WHEN IT RAINS THE CAR SHAKES AND THEN EVENTUALLY THE ENGINE WOULD JUST SHUT DOWN, DUE TO A HARNESS PROBLEM. DUE TO THE SAME PROBLEM THE SPEED OF THE CAR IT STARTS TO SLOWS DOWN BEFORE THE ENGINE DIES OUT AND WHEN I TRY TO CLOSE OR OPEN THE WINDOW IT WOULD DO IT SLOWLY, NOT AT NORMAL SPEED. ALSO ANOTHER PROBLEM, THERE'S A MISFIRE IN THE ENGINE. *TR | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Seat Belts:Front:Retractor | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 112.5%ODI 807179BOTH FRONT SEAT BELTS WILL NOT RETRACT AND WHEN THE SEAT BELT IS ON THEY ARE VERY LOOSE. THE SEAT BELT WILL NOT HOLD CONSUMER IN THE SEAT IF THERE WOULD HAVE BEEN AN ACCIDENT. TOOK VEHICLE TO DEALER AND THEY REPLACED BOTH BUT STILL HAVNG THE SAME PROBLEM. *AK | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 228.6%ODI 10002755 · 71,000 miSEAT BELT PROBLEM WITH 1999 MERCEDES S500. SEAT BELT WOULD NOT RETRACT. I CALLED MERCEDES BENZ TECHNICAL SUPPORT (TWICE) TO ASK IF THERE WAS A PROBLEM WITH THEIR SEAT BELTS. THEIR IMMEDIATE RESPONSE WAS THAT THEY HAD NOT RECEIVED ANY COMPLAINTS ABOUT SEAT BELT FAILURE. WHEN I TOOK THE CAR TO MY AUTO REPAIR SHOP, WHICH SPECIALIZES IN MERCEDES BENZ ONLY, I WAS TOLD THAT THEY REPLACE MANY SEAT BELTS. LAST NIGHT WE WENT TO DINNER WITH FRIENDS WHO WERE DRIVING A 1994 SE MERCEDES - WHEN WE GOT OUT OF THE CAR, I NOTICED THAT THE DRIVER'S SEAT BEL… | 00.0%No examples available for this selection. | 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 | 0 | None | No examples available for this selection. |
| 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.
2000: 3 complaints · 2003: 5 complaints
| Model year | Through age 0 | Through age 1 | Through age 2 |
|---|---|---|---|
| 2000 | 0 | 1 | 3 |
| 2003 | 0 | 4 | 5 |
Date coverage across each selected cohort
| Year | Incident dates used | Filing date fallbacks | Excluded dates |
|---|---|---|---|
| 2000 | 6 | 0 | 3 |
| 2003 | 9 | 1 | 1 |
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 |
|---|
| No usable records for this analysis. |
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.