1994 Mercedes Benz SL500: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
8 owner complaints analyzed
0 distinct recall campaigns
90,000 mi median reported failure mileage
Scope: 1994 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
Electrical System is the most frequently named component, appearing in 3 of 8 complaints (37.5%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 5 | 62.5% |
| Engine operation | 1 | 12.5% |
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 | 3 |
| Electrical System:Wiring:Front Underhood | 3 |
| Electrical System:Wiring | 2 |
| Fuel/Propulsion System | 1 |
| Structure:Body | 1 |
Electrical System: 3; Electrical System:Wiring:Front Underhood: 3; Electrical System:Wiring: 2; Fuel/Propulsion System: 1; Structure:Body: 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 | 1 |
| 75,000 to 99,999 | 2 |
| 100,000 to 149,999 | 2 |
| 150,000 and above | 1 |
Under 25,000: 0; 25,000 to 49,999: 1; 50,000 to 74,999: 1; 75,000 to 99,999: 2; 100,000 to 149,999: 2; 150,000 and above: 1
75,000 to 99,999 miles has the most reports with usable mileage (2). 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 |
|---|---|
| 2006 | 3 |
| 2007 | 1 |
| 2008 | 1 |
| 2016 | 2 |
| 2020 | 1 |
2006: 3; 2007: 1; 2008: 1; 2016: 2; 2020: 1
Pattern summary
Electrical System leads the component reports. Electrical and battery issues appears in 5 complaint narratives. Engine operation 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 10164920 · 2006-08-08 (August 8, 2006)
HFM & OTHER WIRING HARNESSES ARE DETERIORATED. VEHICLE HAS BEEN MAINTAINED TO MANUFACTURERS RECOMMENDATIONS SINCE NEW. DETERIORATED WIRING HARNESS CAUSES CHECK ENGINE LIGHTS, IGNITION MALFUNCTIONS, ELECTRICAL SHORTS OCCUR IN THE ENGINE COMPARTMENT. WIRE INSULATION / COATINGS ARE OBVIOUSLY NOT UP TO THE TASK. THIS IS DANGEROUS SITUATION. *JB
Owner-reported narrative. 104,001 miles reported. Look up ODI 10164920 at NHTSA ↗
Owner report 10172447 · 2006-11-02 (November 2, 2006)
MY WIRING HARNESS HAS DISINTEGRATED. I HAVE SHORTS IN THE WIRING THAT HAVE SO FAR AFFECTED THE ALTERNATOR, HEATING COOLING, FUEL INJECTION AND LIGHTS. *NM
Owner-reported narrative. 89,000 miles reported. Look up ODI 10172447 at NHTSA ↗
Owner report 10175348 · 2006-12-06 (December 6, 2006)
DT*: THE CONTACT STATED WHILE STOPPED AT A STOP SIGN, THE ENGINE STARTED MAKING LOUD NOISES. THERE WERE NO WARNING LIGHTS ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALERSHIP, WHO DETERMINED THE ENGINE WIRING HARNESSES HAD TO BE REPLACED AND THAT THE VEHICLE WAS NOT SAFE TO OPERATE WITH SUCH WIRING CONDITIONS. THE REPAIR WAS RATHER EXPENSIVE AND WAS COVERED AT THE CONTACT'S EXPENSE. THE CONTACT ENCOUNTERED SEVERAL COMPLAINTS ON THE INTERNET FOR THE SAME DEFECT HOWEVER; NO RECALL HAD BEEN CONDUCTED YET. THE VEHICLE REMAINED AT THE DEALERSHI…
Owner-reported narrative. 65,992 miles reported. Look up ODI 10175348 at NHTSA ↗
Owner report 10177892 · 2007-01-05 (January 5, 2007)
1994 MERCEDES BENZ SL500 ENGINE WIRING HARNESS FAILURE. HARNESS INSULATION SEEMS TO BE DISINTEGRATING. *JB
Owner-reported narrative. Look up ODI 10177892 at NHTSA ↗
Owner report 10225276 · 2008-04-21 (April 21, 2008)
WHILE ATTEMPTING TO TRACK DOWN THE CAUSE OF AN OCCASIONALLY ERRATIC IDLE I REMOVED THE ENGINE COVER TO EXAMINE THE PLUG WIRES AND DISCOVERED A RATHER ALARMING PROBLEM/SAFETY ISSUE. THE MAIN ENGINE WIRE HARNESS FOR THE FUEL INJECTORS AND OTHER ENGINE SYSTEMS HAD BARE WIRES!!?? UPON FURTHER EXAMINATION THE WIRE INSULATION APPEARS TO HAVE SIMPLE VANISHED??? NOT JUST ON EXPOSED WIRES (AS COULD HAVE BEEN CAUSED BY RODENTS FOR EXAMPLE) BUT IF YOU PEAL BACK THE OUTER HARNESS COVER ALL THE WIRES INSIDE ARE BARE AND THERE APPEARS TO BE THE REMNANTS OF…
Owner-reported narrative. 117,000 miles reported. Look up ODI 10225276 at NHTSA ↗
Owner report 10861510 · 2016-04-26 (April 26, 2016)
STARTED THE CAR AT WORK AND IT WAS RUNNING ROUGH HAD NO ACCELERATION. WENT INTO LIMP HOME MODE AND I WAS ABLE TO GET HOME. A MECHANIC FOUND THE WIRING HARNESS WAS DETERIORATING, FLAKING AND FALLING APART EXPOSING ALL THE WIRES. THE CAR WOULD NO LONG EVEN START. I CALLED MERCEDES TO SEE IF THEY WOULD HELP WITH THE COST OF THE PART REPLACEMENT. THEY DENIED ANY PROBLEM WITH THE PRODUCT AND WOULD NOT ASSIST IN ANY REPAIR. I LOGGED A COMPLAINT WITH THEM UNDER MY NAME AND HAVE TRIED MANY TIMES TO GET ASSISTANCE WITH THE REPAIR. THE CAR IS STILL SITTI…
Owner-reported narrative. 40,000 miles reported. Look up ODI 10861510 at NHTSA ↗
Owner report 10924326 · 2016-11-04 (November 4, 2016)
FACTORY MATERIAL DEFECT. ENGINE WIRE HARNESS INSULATION IS BREAKING DOWN AND FLAKING OFF, LEAVING EXPOSED WIRE. IGNITION IS POOR AND THREATENS TO STALL, ESPECIALLY WHEN ENGINE TEMPERATURE WARMS UP TO 85-90C. I FEAR THE ENGINE MAY FAIL OR CATCH FIRE DURING A DRIVE AND CAUSE AN ACCIDENT. THERE IS ALSO A SHORT IN THE AUDIO SYSTEM. THE VEHICLE IS BEAUTIFUL. IT IS A SHAME TO HAVE IT SITTING SINCE 2008. *TR
Owner-reported narrative. 90,000 miles reported. Look up ODI 10924326 at NHTSA ↗
Owner report 11301295 · 2020-01-23 (January 23, 2020)
ENGINE COMPARTMENT FIRE NEAR DRIVERS FIREWALL. FIRE WAS EXTINGUISHED HOWEVER STRONG FUEL VAPORS REMAINED. ORIGIN OF FIRE UNKNOWN. I SUBMITTED A REPORT FOR MY 1999 MERCEDES WHICH CAUGHT FIRE FROM THE HOOD INSULATION FALLING ONTO THE HOT MANIFOLD IN THE SAME GENERAL AREA.
Owner-reported narrative. 194,000 miles reported. Look up ODI 11301295 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.