1993 Mercedes Benz 300 SERIES: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
21 owner complaints analyzed
0 distinct recall campaigns
151,000 mi median reported failure mileage
Scope: 1993 model year. Data snapshot: . 20 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 9 of 21 complaints (42.9%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 14 | 66.7% |
| Engine operation | 5 | 23.8% |
| Transmission and shifting | 2 | 9.5% |
| Braking behavior | 1 | 4.8% |
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 | 9 |
| Electrical System:Wiring:Front Underhood | 8 |
| Electrical System:Wiring | 2 |
| Electrical System:Wiring:Fuses And Circuit Breakers | 1 |
| Engine And Engine Cooling | 1 |
| Engine And Engine Cooling:Engine | 1 |
| Fuel System, Gasoline:Fuel Injection System | 1 |
| Fuel System, Gasoline:Fuel Injection System:Injectors | 1 |
Electrical System: 9; Electrical System:Wiring:Front Underhood: 8; Electrical System:Wiring: 2; Electrical System:Wiring:Fuses And Circuit Breakers: 1; Engine And Engine Cooling: 1; Engine And Engine Cooling:Engine: 1; Fuel System, Gasoline:Fuel Injection System: 1; Fuel System, Gasoline:Fuel Injection System:Injectors: 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 | 1 |
| 100,000 to 149,999 | 7 |
| 150,000 and above | 11 |
Under 25,000: 0; 25,000 to 49,999: 1; 50,000 to 74,999: 0; 75,000 to 99,999: 1; 100,000 to 149,999: 7; 150,000 and above: 11
150,000 and above miles has the most reports with usable mileage (11). 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 |
|---|---|
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 2 |
| 2007 | 4 |
| 2008 | 3 |
| 2009 | 1 |
| 2011 | 5 |
| 2013 | 1 |
2003: 2; 2004: 1; 2005: 2; 2006: 2; 2007: 4; 2008: 3; 2009: 1; 2011: 5; 2013: 1
Pattern summary
Electrical System leads the component reports. Electrical and battery issues appears in 14 complaint narratives. Engine operation appears in 5 complaint narratives. Transmission and shifting appears in 2 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 10010094 · 2003-03-07 (March 7, 2003)
WIRING HARNESS ON 1993-1994 MERCEDES BENZ 300E. THIS IS A KNOWN FAULT BY MERCEDES BENZ RESULTING IN A PREMATURE CORROSION OF THE WIRING HARNESS RUNNING ALONG THE TOP OF THE ENGINE. MERCEDES IS WELL AWARE OF THE PROBLEM AND HAS A LARGE STOCK TO MEET THE DEMAND!*JB
Owner-reported narrative. Look up ODI 10010094 at NHTSA ↗
Owner report 10049597 · 2003-12-11 (December 11, 2003)
I HAVE OWNED THREE PREVIOUS MBZ AUTOMOBILES. TODAY, I OWN A 1993 300SE WITH LESS THAN 46000 MILES ON THE ODOMETER. THIS CAR'S ORIGINAL PURCHASE PRICE WAS MORE THAN $72000. EVEN THOUGH I TAKE VERY GOOD CARE OF THIS AUTOMOBILE, AND WHILE IT IS MOSTLY GARAGED AS IT IS MY WEEKEND SEDAN, OVER $7K HAS BEEN SPENT IN CORRECTING KNOWN PROBLEMS OF THIS MODEL. TO NAME JUST A FEW OF THE LARGER ITEMS CORRECTED, A LEAKING HEAD GASKET, BAD MOTOR MOUNTS, AND INOPERABLE PNEUMATIC SELF CLOSING DOORS. WILL I CONTINUE MY AFFAIR WITH MBZ, LEXUS MAY BE GETTING…
Owner-reported narrative. 46,000 miles reported. Look up ODI 10049597 at NHTSA ↗
Owner report 10100950 · 2004-12-02 (December 2, 2004)
93 300SE PURCHASED IN 1999; TRANSMISSION REPLACED IN MONTH AND HALF; 11/22/04 TRANSMISSION STOPPED PULLING ON HIGHWAY HALFWAY BETWEEN MEMPHIS AND ST LOUIS. WHEN WE TURNED THE CAR OFF, IT WOULD NOT START AGAIN. LIGHTS, RADIO, HORN, ETC WORKED, BUT CAR WOULD NOT SAY ANYTHING. READ ARTICLE ON INTERNET REGARDING DEFECTIVE B2 PISTON AND 'T' SEAL IN 93 AND EARLIER TRANSMISSIONS (722.3,.4,.5). WE HAVE 722.502. MERCEDES (1-800 FOR MERC) DOESN'T KNOW ANYTHING ABOUT IT. MERCEDES TRANS SHOULD LAST LONGER THAN FIVE YEARS. WE HAD THE CAR TOWED TO SIK…
Owner-reported narrative. 192,658 miles reported. Look up ODI 10100950 at NHTSA ↗
Owner report 10105816 · 2005-01-05 (January 5, 2005)
UNEXPLAINED ELECTRICAL-RELATED PROBLEMS THAT AFFECT THE CAR'S ABILITY TO OPERATE NORMALLY AND SAFELY. SEVERAL INSTANCES OF CAR GOING INTO "LIMP HOME" MODE AFTER STOPPING AT STOPLIGHT. THIS OCCURRED ON 1/3/05. TURNING OFF CAR AND RESTARTING RESOLVED ON ALL OCASIONS. CAR ALSO RUNS ROUGH AND HAS INSTANCES WHERE IT WILL NOT ACCELERATE WHEN REQUIRED TO DO SO (FIRM PRESSURE ON ACCELERATOR (AS IN PASSING) CAUSE ENGINE TO 1. MISFIRE AND 2. NOT DOWNSHIFT. SERVICE PEOPLE WILL NOT LOOK AT THE PROBLEM UNTIL "KNOWN ENGINE DEFECTIVE WIRING HARNESS" IS REPLAC…
Owner-reported narrative. 150,000 miles reported. Look up ODI 10105816 at NHTSA ↗
Owner report 10133655 · 2005-08-21 (August 21, 2005)
THE WIRING HARNESS IN MY VEHICLE, LIKE MANY OTHERS OF THE SAME MAKE/MODEL/VINTAGE, IS BEGINNING TO CAUSE ENGINE ISSUES. THE CAR STALLS AND MISSES WHEN IDLING AND IT IS A SAFETY CONCERN. IT WOULD BE QUITE DANGEROUS FOR THE VEHICLE TO STALL ON THE HIGHWAY ETC. MERCEDES IS WELL AWARE THAT THIS IS A VERY COMMON PROBLEM, AND IT IS A MATTER OF WHEN THE PART WILL FAIL AND NOT IF. IT IS A DESIGN FLAW THAT CAUSES THE ISSUE. MERCEDES DESIGNED THE HARNESS TO DEGRADE OVER TIME, THE PROBLEM IS THAT THE DEGRADATION IS HAPPENING AT A FASTER RATE THAN EXP…
Owner-reported narrative. 162,000 miles reported. Look up ODI 10133655 at NHTSA ↗
Owner report 10155432 · 2006-04-16 (April 16, 2006)
1993 MB 300E - WIRING HARNESS HAS BEGUN TO DETERIORATE CAUSING THE ENGINE TO STALL AND OR NOT START. STALLING CAN OCCUR WHILE DRIVING, THUS LOSING ALL POWER TO PROPERLY CONTROL THE VEHICLE. *NM
Owner-reported narrative. 223,000 miles reported. Look up ODI 10155432 at NHTSA ↗
Owner report 10172275 · 2006-10-31 (October 31, 2006)
WIRE HARNESS CREATES POPPING NOISE AND WHITE SMOKE, WHEN ENGINE IS STARTED. AND ALSO SOMETIMES THE ENGINE DOES NOT START, DUE DO THIS PROBLEM. I HOPE IT DOES NOT CATCH MY CAR ON FIRE ONE DAY. *NM
Owner-reported narrative. 118,000 miles reported. Look up ODI 10172275 at NHTSA ↗
Owner report 10183858 · 2007-02-28 (February 28, 2007)
ENGINE WIRING HARNESS FAILURE 1993 MERCEDES 300E. *JB
Owner-reported narrative. 100,000 miles reported. Look up ODI 10183858 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.