1993 Mercedes Benz 400E problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
19 owner complaints analyzed
1 distinct recall campaigns
144,000 mi median reported failure mileage
Scope: 1993 model year. Data updated: . 15 complaints include usable failure mileage. View data status.
Owner-reported patterns
Most common problems
Electrical System is the most frequently named component, appearing in 6 of 19 complaints (31.6%). A complaint can name multiple components.
Recurring terms in complaint narratives
Topic
Matching reports
Share of complaints
Electrical and battery issues
16
84.2%
Engine operation
4
21.1%
Transmission and shifting
1
5.3%
Braking behavior
1
5.3%
Fuel system concerns
1
5.3%
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.
Electrical System leads the component reports. Electrical and battery issues appears in 16 complaint narratives. Engine operation appears in 4 complaint narratives. 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.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
THE ELECTRICAL INSULATION OF THE MAIN WIRING HARNESS HAS VIRTUALLY DISINTEGRATED, APPARENTLY FROM THE (NORMAL) HEAT OF THE ENGINE. THE INSULATION LITERALLY FLAKES AWAY IN MY HAND WHEN BEING HANDLED EVEN WITH THE MOST GENTLE TOUCH. THE MANUFACTURER (MERCEDES) CLAIMS THIS IS NOT A PROBLEM DESPITE THE PHYSICAL EVIDENCE. THE COST TO REPLACE THE WIRING HARNESS IS $500+ FOR ONLY THE PART; THE COST OF INSTALLATION IS ALSO IN EXCESS OF $500, THUS COSTING OVER $1,000. THIS IS A CRITICAL SAFETY ISSUE! THE DETERIORATED INSULATION CAUSES INTERMITTE…
DT: THE VEHICLE STALLED WHILE DRIVING. THERE WERE NO ACCIDENTS. WHEN THE CONSUMER TOOK THE VEHICLE TO THE DEALER TO BE REPAIRED THEY THOUGHT IT WAS THE TRANSMISSION. THEY REBUILT THE TRANSMISSION, REPLACED THE STARTER AND THE MAIN WIRING HARNESS THAT GOES INTO THE TRANSMISSION. AFTER THIS IT WOULD NOT REALLY GO ANYWHERE. HE TOOK IT BACK TO DEALER. THEY REPLACED THE SPARK PLUGS, TWO DISTRIBUTORS, TWO FILTER ELEMENTS, FUEL FILTER, ADDED BRAKE FLUID, FUEL INJECTION KIT, AND THEY FLUSHED THE FUEL. THE VEHICLE IS STILL NOT DRIVABLE. *AK
WHILE DRIVING, MY CAR STALLED OUT SEVERAL TIMES, BUT WAS ABLE TO RESTART A FEW TIMES. IT EVENTUALLY WOULD NOT START AND I WAS IN THE MIDDLE OF NOWHERE, WITH NO PHONE SERVICE, AND HAD A HORRIBLE EXPERIENCE FINDING HELP AFTER HAVING TO PUSH MY CAR OFF THE ROAD. TURNS OUT THE ENGINE WIRING HARNESS FAILED, BIG SURPRISE!!! THIS WHOLE ORDEAL COST ME 1800 DOLLARS ON SOMETHING THAT MB USED TO REPLACE FOR FREE. *NM
I AM WRITING ABOUT A FAULTY ENGINE WIRING HARNESS IN MY 1993 400E (E420 BADGE). THIS PAST MAY, MY CAR HAD A CHECK ENGINE LAMP PROBLEM SYMPTOM. AFTER BEING WITHOUT MY CAR FOR THE MORE THAN 2 WEEKS THAT IT TOOK MY MECHANIC (DIETSCH WERKS IN SUNNYVALE, CALIFORNIA) TO INVESTIGATE MULTIPLE ERRONEOUS DIAGNOSTIC FAULT CODES, I FINALLY GOT MY CAR BACK AFTER SPENDING ABOUT $500 PARTIALLY FOR ELUSIVE DIAGNOSTIC TIME. ON THE EVENING OF 30 JUNE, THE CAR DIED WHILE DRIVING ON THE BUSY US 101 FREEWAY IN SAN JOSE, SO I HAD IT TOWED TO MY MECHANIC. THE FU…
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
19 unique complaints in this selection. Analysis snapshot: 2026-10-01.
78.9%Usable mileage15 / 19 records
100.0%Valid incident date19 / 19 records
100.0%Valid filing date19 / 19 records
100.0%Ordered incident and filing dates19 / 19 records
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 complaint heatmap
Component
1992
1993
Electrical System
631.6%ODI 10230774 · 135,000 mi
1992 MERCEDES-BENZ 400E WIRING HARNESS MULTIPLE FAILURES. REPLACED ENGINE WIRING HARNESS SHORTLY AFTER I PURCHASED THIS CAR (USED) IN 2005 DUE TO DETERIORATION OF INSULATION FROM THE WIRES. I WAS TOLD AT THE TIME THAT THIS IS A COMMON PROBLEM WITH THIS ERA OF MB DUE TO SOME PLANNED OBSOLESCENCE OR TARGETED SELF-DESTRUCTION BY THE MANUFACTURER. TODAY I AM TOLD THAT I NEED TO REPLACE THE WIRING HARNESS LEADING TO THE STARTER MOTOR FOR THE EXACT SAME REASON. THESE ARE EXPENSIVE PARTS, ONLY AVAILABLE FROM THE MANUFACTURER AND REQUIRE EX…
VEHICLE CHECKED AND FOUND THAT INSULATION ON ALL OF THE FUEL INJECTION WIRING, TEMPERATURE SENSOR AND FAN THERMAL SWITCH HARNESS DETERIORATED CAUSING WIRES TO RUB TOGETHER. CONSUMER DISCOVERED THAT HARNESS INSULATION IS MADE OF VERY POOR MATERIAL .THE INSULATION BREAKS VERY EASY AT THE TOUCH AND TURNS INTO DUST. THE WHOLE WIRE HARNESS IS IN THE SAME SITUATION. *JB
WHILE DRIVING, MY CAR STALLED OUT SEVERAL TIMES, BUT WAS ABLE TO RESTART A FEW TIMES. IT EVENTUALLY WOULD NOT START AND I WAS IN THE MIDDLE OF NOWHERE, WITH NO PHONE SERVICE, AND HAD A HORRIBLE EXPERIENCE FINDING HELP AFTER HAVING TO PUSH MY CAR OFF THE ROAD. TURNS OUT THE ENGINE WIRING HARNESS FAILED, BIG SURPRISE!!! THIS WHOLE ORDEAL COST ME 1800 DOLLARS ON SOMETHING THAT MB USED TO REPLACE FOR FREE. *NM
THE ELECTRICAL INSULATION OF THE MAIN WIRING HARNESS HAS VIRTUALLY DISINTEGRATED, APPARENTLY FROM THE (NORMAL) HEAT OF THE ENGINE. THE INSULATION LITERALLY FLAKES AWAY IN MY HAND WHEN BEING HANDLED EVEN WITH THE MOST GENTLE TOUCH. THE MANUFACTURER (MERCEDES) CLAIMS THIS IS NOT A PROBLEM DESPITE THE PHYSICAL EVIDENCE. THE COST TO REPLACE THE WIRING HARNESS IS $500+ FOR ONLY THE PART; THE COST OF INSTALLATION IS ALSO IN EXCESS OF $500, THUS COSTING OVER $1,000. THIS IS A CRITICAL SAFETY ISSUE! THE DETERIORATED INSULATION CAUSES INTERMITTE…
DRIVING ON RT 101. SUDDENLY COULD NOT CONTROL ACCELERATION. NEARLY HAD AN ACCIDENT FORCING ANOTHER CAR OFF THE ROAD. TOOK THE CAR TO GERMAN MOTORS-MERCEDES REPAIR AND THEY INDICATED THAT THE ENGINE WIRING HARNESS WAS FALLING APART AND THAT THIS WAS A COMMON PROBLEM FOR THIS MODEL CAR. *NM
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS? *TR
DT: THE VEHICLE STALLED WHILE DRIVING. THERE WERE NO ACCIDENTS. WHEN THE CONSUMER TOOK THE VEHICLE TO THE DEALER TO BE REPAIRED THEY THOUGHT IT WAS THE TRANSMISSION. THEY REBUILT THE TRANSMISSION, REPLACED THE STARTER AND THE MAIN WIRING HARNESS THAT GOES INTO THE TRANSMISSION. AFTER THIS IT WOULD NOT REALLY GO ANYWHERE. HE TOOK IT BACK TO DEALER. THEY REPLACED THE SPARK PLUGS, TWO DISTRIBUTORS, TWO FILTER ELEMENTS, FUEL FILTER, ADDED BRAKE FLUID, FUEL INJECTION KIT, AND THEY FLUSHED THE FUEL. THE VEHICLE IS STILL NOT DRIVABLE. *AK
PARKED THE VEHICLE AND PLACED IT IN PARK THEN TURNED IGNITION OFF. BURNING SMELL COMING FROM VEHICLE THEN SMOKE STARTED GOING IN THROUGH VENTS AND SEEMED LIKED IT WAS COMING FROM UNDER THE CAR. THE ELECTRICAL WIRING HARNESS IS CREATING MASS AND THE CAR NEARLY WENT UP IN FLAMES. THE FIRE DEPARTMENT ARRIVED AND WERENT ABLE TO PUT OUT THE SMOKE AS THE SOURCE OF IT WAS NOT IMMEDIATLY DETERMINED. I AM NOT LOOKING AT THOUSANDS OF DOLLARS IN REPAIRS.
1992 MERCEDES BENZ 400E. CONSUMER WRITES IN REGARDS TO SEVERAL RECALL NOTICES RENDERED VEHICLE USELESS. *SMD MERCEDES BENZ WROTE TO THE CONSUMER, STATING THERE WERE NO OUTSTANDING RECALL CAMPAIGNS ON THE VEHICLE. THE CONSUMER REFERENCED RECALL NUMBERS, 92V083000 AND 94V004000. *JB
WIRING HARNESS ON MERCEDES BENZ 400E FAILED AND ENTERED A LOW POWER BACKUP MODE ON THE HIGHWAY FAR AWAY FROM OUR RESIDENCE. WIRING HARNESS IS CHARRED AND HARNESS SHORTED OUT ON ENGINE. *TR
I OWN A 1993 400E MERCEDES. RECENTLY IT HAS HAD MAJOR DIFFICULTY TURNING OVER. I TOOK IT TO MY LOCAL MERCEDES BENZ REPAIR SHOP. THEY TOLD ME IT THE ENGINE HARNESS HAS GONE BAD AND NEEDS TO BE REPLACED COMPLETELY. EVIDENTLY THIS IS A VERY COMMON PROBLEM WITH THIS VEHICLE AS MERCEDES USED SUB-STANDARD MATERIALS WHEN BUILDING THE WIRING HARNESS. THIS CAUSES MAJOR SAFETY ISSUES AND I BELIEVE MERCEDES SHOULD BE FORCED TO BEGIN RECALLING THESE VEHICLES. *TR
I AM THE OWNER OF A 1993 MERCEDES 400E THE LOWER WIRING HARNESS ALMOST CAUSED A FIRE ON THE VEHICLE DUE TO THE USE OF BIODEGRADEABLE MATERIALS USED BY MERCEDES BENZ BECAUSE THE COMPANY WAS THE LOW BIDDER AND NOW THE UPPER WIRING HARNESS IS CAUSING ALL KINDS OF ELECTRICAL PROBLEMS THROUGH OUT THE CAR MERCEDES BENZ HAS NOT CLAIMED ANY RESPONSIBILITY FOR THIS PROBLEM WHICH IS HIGHLY DANGEROUS AND IS A MAJOR PROBLEM WITH ALMOST ALL OF THEIR CARS FROM 1992 TO 1995 BESIDES BEING SO DANGEROUS IT IS VERY COSTLY TO THE VEHICLE OWNERS MERCEDES BENZ SHOUL…
I AM WRITING ABOUT A FAULTY ENGINE WIRING HARNESS IN MY 1993 400E (E420 BADGE). THIS PAST MAY, MY CAR HAD A CHECK ENGINE LAMP PROBLEM SYMPTOM. AFTER BEING WITHOUT MY CAR FOR THE MORE THAN 2 WEEKS THAT IT TOOK MY MECHANIC (DIETSCH WERKS IN SUNNYVALE, CALIFORNIA) TO INVESTIGATE MULTIPLE ERRONEOUS DIAGNOSTIC FAULT CODES, I FINALLY GOT MY CAR BACK AFTER SPENDING ABOUT $500 PARTIALLY FOR ELUSIVE DIAGNOSTIC TIME. ON THE EVENING OF 30 JUNE, THE CAR DIED WHILE DRIVING ON THE BUSY US 101 FREEWAY IN SAN JOSE, SO I HAD IT TOWED TO MY MECHANIC. THE FU…
THE ELECTRICAL INSULATION OF THE MAIN WIRING HARNESS HAS VIRTUALLY DISINTEGRATED, APPARENTLY FROM THE (NORMAL) HEAT OF THE ENGINE. THE INSULATION LITERALLY FLAKES AWAY IN MY HAND WHEN BEING HANDLED EVEN WITH THE MOST GENTLE TOUCH. THE MANUFACTURER (MERCEDES) CLAIMS THIS IS NOT A PROBLEM DESPITE THE PHYSICAL EVIDENCE. THE COST TO REPLACE THE WIRING HARNESS IS $500+ FOR ONLY THE PART; THE COST OF INSTALLATION IS ALSO IN EXCESS OF $500, THUS COSTING OVER $1,000. THIS IS A CRITICAL SAFETY ISSUE! THE DETERIORATED INSULATION CAUSES INTERMITTE…
ENGINE WIRING HARNESS WIRE INSULATION HAS ALMOST COMPLETELY DISINTEGRATED. VERY POOR GAS MILEAGE AND ROUGH RUNNING ARE THE RESULT ON A LOW MILE CAR (90K TOTAL MILES). REQUEST REPLACEMENT OF DEFECTIVE WIRING HARNESS. *NM
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS? *TR
THE FUEL INJECTION ENGINE HARNESS WIRING HAS COMPLETELY DETERIORATED DUE TO THE USE OF A BIO DEGRADABLE MATERIAL BY MERCEDES BENZ. HAS RESULTED IN A LOT OF SHORTING ISSUES, WHICH RESULTED IN AIR CONDITIONING TURNING OFF, FAN CONTROL OFF, ENGINE HEATING UP, BLUE AND BLACK SMOKE, AND NOW SMOG FAILURE. THIS IS A KNOWN PROBLEM TO MERCEDES AND THEY NEED TO FIX IT. I HAVE HAD OVER $4000 REPAIRS AND STILL NEED TO GET THE ENGINE HARNESS CHANGED, WHICH IS A CUSTOM PAR AND MERCEDES WILL TAKE 2 MONTHS TO BUILD AND THE REPAIR ESTIMATE ON MY CAR IS OVER …
DT: THE VEHICLE STALLED WHILE DRIVING. THERE WERE NO ACCIDENTS. WHEN THE CONSUMER TOOK THE VEHICLE TO THE DEALER TO BE REPAIRED THEY THOUGHT IT WAS THE TRANSMISSION. THEY REBUILT THE TRANSMISSION, REPLACED THE STARTER AND THE MAIN WIRING HARNESS THAT GOES INTO THE TRANSMISSION. AFTER THIS IT WOULD NOT REALLY GO ANYWHERE. HE TOOK IT BACK TO DEALER. THEY REPLACED THE SPARK PLUGS, TWO DISTRIBUTORS, TWO FILTER ELEMENTS, FUEL FILTER, ADDED BRAKE FLUID, FUEL INJECTION KIT, AND THEY FLUSHED THE FUEL. THE VEHICLE IS STILL NOT DRIVABLE. *AK
TL* - THE CONTACT'S 1993 MERCEDES BENZ, 400E WITH THE CRUISE CONTROL SET INCREASED THE VEHICLE INCREASED SPEED. THE CONTACT IMMEDIATELY DROVE THE VEHICLE OFF THE HIGHWAY, THE VEHICLE WOULD NOT RESTART. THE CONTACT'S CAR WAS TOWED TO THE REPAIR SHOP. THE MECHANIC EXPLAINED THE FOLLOWING DETAILS TO THE CONTACT: THE AIR CLEANER WAS REMOVED WHICH INDICATED THE WIRING WAS DESTROYED AND THAT THIS IS TYPICAL FOR THIS VEHICLE INCLUDING A VERY HIGH FAILURE RATE OF THE WIRING HARNESS. THIS FAILURE, PER THE MECHANIC, CAN ALSO CAUSE A FIRE.
DRIVING ON RT 101. SUDDENLY COULD NOT CONTROL ACCELERATION. NEARLY HAD AN ACCIDENT FORCING ANOTHER CAR OFF THE ROAD. TOOK THE CAR TO GERMAN MOTORS-MERCEDES REPAIR AND THEY INDICATED THAT THE ENGINE WIRING HARNESS WAS FALLING APART AND THAT THIS WAS A COMMON PROBLEM FOR THIS MODEL CAR. *NM
PARKED THE VEHICLE AND PLACED IT IN PARK THEN TURNED IGNITION OFF. BURNING SMELL COMING FROM VEHICLE THEN SMOKE STARTED GOING IN THROUGH VENTS AND SEEMED LIKED IT WAS COMING FROM UNDER THE CAR. THE ELECTRICAL WIRING HARNESS IS CREATING MASS AND THE CAR NEARLY WENT UP IN FLAMES. THE FIRE DEPARTMENT ARRIVED AND WERENT ABLE TO PUT OUT THE SMOKE AS THE SOURCE OF IT WAS NOT IMMEDIATLY DETERMINED. I AM NOT LOOKING AT THOUSANDS OF DOLLARS IN REPAIRS.
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS? *TR
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
Monthly complaint and recall timeline
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.
1992: 0 complaints · 1993: 1 complaints
Equal observation windows
Model year
Through age 0
Through age 1
Through age 2
1992
0
0
0
1993
0
0
1
Date coverage across each selected cohort
Date basis for all complaints in selected model years
Year
Incident dates used
Filing date fallbacks
Excluded dates
1992
19
0
0
1993
19
0
0
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 co-occurrence matrix
Component
Electrical System
Electrical System:Wiring
Electrical System:Wiring:Front Underhood
Engine
Engine And Engine Cooling:Engine
Vehicle Speed Control
Electronic Stability Control (Esc)
Fuel/Propulsion System
Electrical System
—
0
0
1ODI 10484072 · 278,000 mi
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS? *TR
PARKED THE VEHICLE AND PLACED IT IN PARK THEN TURNED IGNITION OFF. BURNING SMELL COMING FROM VEHICLE THEN SMOKE STARTED GOING IN THROUGH VENTS AND SEEMED LIKED IT WAS COMING FROM UNDER THE CAR. THE ELECTRICAL WIRING HARNESS IS CREATING MASS AND THE CAR NEARLY WENT UP IN FLAMES. THE FIRE DEPARTMENT ARRIVED AND WERENT ABLE TO PUT OUT THE SMOKE AS THE SOURCE OF IT WAS NOT IMMEDIATLY DETERMINED. I AM NOT LOOKING AT THOUSANDS OF DOLLARS IN REPAIRS.
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS? *TR
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS? *TR
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS? *TR
PARKED THE VEHICLE AND PLACED IT IN PARK THEN TURNED IGNITION OFF. BURNING SMELL COMING FROM VEHICLE THEN SMOKE STARTED GOING IN THROUGH VENTS AND SEEMED LIKED IT WAS COMING FROM UNDER THE CAR. THE ELECTRICAL WIRING HARNESS IS CREATING MASS AND THE CAR NEARLY WENT UP IN FLAMES. THE FIRE DEPARTMENT ARRIVED AND WERENT ABLE TO PUT OUT THE SMOKE AS THE SOURCE OF IT WAS NOT IMMEDIATLY DETERMINED. I AM NOT LOOKING AT THOUSANDS OF DOLLARS IN REPAIRS.
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS? *TR
FAULTY WIRING IN ENGINE HARNESS RESULTED IN LOSS OF POWER AT SPEED ON A MAJOR INTERSTATE, LUCKILY AT THE TIME I WAS ABLE TO GET OFF THE ROAD SAFELY. IT WAS DETERMINED THAT THE CAR'S CHARGING SYSTEM HAD BEEN SHORTED OUT. STILL WAITING ON OTHER SYSTEM TESTS. THIS IS A KNOWN PROBLEM WITH CERTAIN MERCEDES. WHY ISN'T ANYTHING BEING DONE ABOUT THIS? *TR
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.
4 patterns with matching reports.
Stalling or loss of power
4 mentions · 21.1% of complaints
Median mileage: 185,500 mi (2 usable records).
ODI 10134065 · 93,000 mi
DT: THE VEHICLE STALLED WHILE DRIVING. THERE WERE NO ACCIDENTS. WHEN THE CONSUMER TOOK THE VEHICLE TO THE DEALER TO BE REPAIRED THEY THOUGHT IT WAS THE TRANSMISSION. THEY REBUILT THE TRANSMISSION, REPLACED THE STARTER AND THE MAIN WIRING HARNESS THAT GOES INTO THE TRANSMISSION. AFTER THIS IT WOULD NOT REALLY GO ANYWHERE. HE TOOK IT BACK TO DEALER. THEY REPLACED THE SPARK PLUGS, TWO DISTRIBUTORS, TWO FILTER ELEMENTS, FUEL FILTER, ADDED BRAKE FLUID, FUEL INJECTION KIT, AND THEY FLUSHED THE FUEL. THE VEHICLE IS STILL NOT DRIVABLE. *AK
WHILE DRIVING, MY CAR STALLED OUT SEVERAL TIMES, BUT WAS ABLE TO RESTART A FEW TIMES. IT EVENTUALLY WOULD NOT START AND I WAS IN THE MIDDLE OF NOWHERE, WITH NO PHONE SERVICE, AND HAD A HORRIBLE EXPERIENCE FINDING HELP AFTER HAVING TO PUSH MY CAR OFF THE ROAD. TURNS OUT THE ENGINE WIRING HARNESS FAILED, BIG SURPRISE!!! THIS WHOLE ORDEAL COST ME 1800 DOLLARS ON SOMETHING THAT MB USED TO REPLACE FOR FREE. *NM
THE WIRE HARNESS IS CRACKED AND ROTTEN. THE MOTOR DOES NOT RUN RIGHT. IT STALLS AND CUTS OUT. THE MECHANIC SAYS TO JUST GIVE HIM $1000.00 FOR A TEMP. FIX DUE TO THE MATERIALS USED IN THE REPLACEMENT HARNESS. *JB
Matching rule\b(stall\w*|loss of power|lost power|engine shut\w* off)\b
Warning lights and dashboard alerts
2 mentions · 10.5% of complaints
Median mileage: 105,315 mi (2 usable records).
ODI 10163905 · 95,630 mi
I AM WRITING ABOUT A FAULTY ENGINE WIRING HARNESS IN MY 1993 400E (E420 BADGE). THIS PAST MAY, MY CAR HAD A CHECK ENGINE LAMP PROBLEM SYMPTOM. AFTER BEING WITHOUT MY CAR FOR THE MORE THAN 2 WEEKS THAT IT TOOK MY MECHANIC (DIETSCH WERKS IN SUNNYVALE, CALIFORNIA) TO INVESTIGATE MULTIPLE ERRONEOUS DIAGNOSTIC FAULT CODES, I FINALLY GOT MY CAR BACK AFTER SPENDING ABOUT $500 PARTIALLY FOR ELUSIVE DIAGNOSTIC TIME. ON THE EVENING OF 30 JUNE, THE CAR DIED WHILE DRIVING ON THE BUSY US 101 FREEWAY IN SAN JOSE, SO I HAD IT TOWED TO MY MECHANIC. THE FU…
FAILED NEW JERSEY DMV INSPECTION CAUSED BY ENGINE RUNNING ABNORMALLY ROUGH AND LIT "CHECK ENGINE LIGHT" , FALSE LOW OIL PRESSURE SIGNAL, VARIOUS ELECTRICAL FUNCTIONS IN CAR EITHER INOPERABLE OR INTERMITTENTLY WORKING. CAUSE WAS DEFECTIVE WIRING HARNESS. DIAGNOSED AND REPAIRED BY SERVICE SHOP AT MERCEDES BENZ DEALER. *NM
WHILE DRIVING, MY CAR STALLED OUT SEVERAL TIMES, BUT WAS ABLE TO RESTART A FEW TIMES. IT EVENTUALLY WOULD NOT START AND I WAS IN THE MIDDLE OF NOWHERE, WITH NO PHONE SERVICE, AND HAD A HORRIBLE EXPERIENCE FINDING HELP AFTER HAVING TO PUSH MY CAR OFF THE ROAD. TURNS OUT THE ENGINE WIRING HARNESS FAILED, BIG SURPRISE!!! THIS WHOLE ORDEAL COST ME 1800 DOLLARS ON SOMETHING THAT MB USED TO REPLACE FOR FREE. *NM
Matching rule\b(parasitic drain|battery drain\w*|dead battery|won.t start|would not start|no.start)\b
Hard or delayed shifting
1 mentions · 5.3% of complaints
Median mileage: 116,000 mi (1 usable records).
ODI 10010497 · 116,000 mi
THE ELECTRICAL INSULATION OF THE MAIN WIRING HARNESS HAS VIRTUALLY DISINTEGRATED, APPARENTLY FROM THE (NORMAL) HEAT OF THE ENGINE. THE INSULATION LITERALLY FLAKES AWAY IN MY HAND WHEN BEING HANDLED EVEN WITH THE MOST GENTLE TOUCH. THE MANUFACTURER (MERCEDES) CLAIMS THIS IS NOT A PROBLEM DESPITE THE PHYSICAL EVIDENCE. THE COST TO REPLACE THE WIRING HARNESS IS $500+ FOR ONLY THE PART; THE COST OF INSTALLATION IS ALSO IN EXCESS OF $500, THUS COSTING OVER $1,000. THIS IS A CRITICAL SAFETY ISSUE! THE DETERIORATED INSULATION CAUSES INTERMITTE…