WIRING HARNESS FAILURE CAUSING STALLING. *TR
1995 Mercedes Benz S Class
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all S Class years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
20 reports with mileage · 7 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 22 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
27 reportsMY AUXILIARY FANS WOULD NOT INITIATE, SO WE DECIDED TO REPLACE THE SWITCH THAT CONTROLS THE FANS. LOW AND BEHOLD, THE WIRING THAT WAS ATTACHED TO THIS SWITCH WAS CRUMBLING LIKE STALE BREAD CRUMBS AND FLAKES. I WANTED TO REPLACE THE WIRE, SO I UNDID THE ENTIRE HARNESS. I FOUND WORSE! THE ENTIRE HARNESS WAS CRUMBLING, BUT I WAS NO…
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MY AUXILIARY FANS WOULD NOT INITIATE, SO WE DECIDED TO REPLACE THE SWITCH THAT CONTROLS THE FANS. LOW AND BEHOLD, THE WIRING THAT WAS ATTACHED TO THIS SWITCH WAS CRUMBLING LIKE STALE BREAD CRUMBS AND FLAKES. I WANTED TO REPLACE THE WIRE, SO I UNDID THE ENTIRE HARNESS. I FOUND WORSE! THE ENTIRE HARNESS WAS CRUMBLING, BUT I WAS NOT ABLE TO SEE IT BEFORE BECAUSE OF THE BLACK COVERING AROUND THE WIRING. THE HARNESS IS COMPLETELY RUINED AND I CAN'T BELIEVE THE # OF COMPLAINTS I'M FINALLY SEEING REGARDING THIS PROBLEM. WOW! BAD ENGINEERING ON THE PART OF MERCEDES FOR THIS ISSUE. MY CAR IS A 1995 THAT HAS BEEN GARAGE ITS ENTIRE LIFE, FOR THE MOST PART. I AM GOING THROUGH THE PAINSTAKING LABOR OF RE-WIRING THIS ENTIRE HARNESS MYSELF...AND IT'S NOT LOOKING GOOD. *TR
THE FUEL SYSTEM WIRING HARNESS ON MY 1995 MERCEDES-BENZ S600 SHORTED OUT AND MADE MY CAR INOPERABLE. THIS OCCURRED WHILE SITTING IN TRAFFIC DRIVE BACK FROM WORK. I WAS ABLE TO 'JIGGLE' THE WIRES ENOUGH TO LIMP TO MY DRIVEWAY. WHILE 'LIMPING', THE CAR CONTINUOUSLY BACKFIRED AND HEAVED TOWARDS THE CARS IN FRONT OF ME, NARROWLY REA…
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THE FUEL SYSTEM WIRING HARNESS ON MY 1995 MERCEDES-BENZ S600 SHORTED OUT AND MADE MY CAR INOPERABLE. THIS OCCURRED WHILE SITTING IN TRAFFIC DRIVE BACK FROM WORK. I WAS ABLE TO 'JIGGLE' THE WIRES ENOUGH TO LIMP TO MY DRIVEWAY. WHILE 'LIMPING', THE CAR CONTINUOUSLY BACKFIRED AND HEAVED TOWARDS THE CARS IN FRONT OF ME, NARROWLY REAR-ENDING THEM. *TR
ASR LIGHT COMING ON INTERMITTENTLY. FAULTY WIRING CAUSING ASR TO FAIL. COST TO REPAIR $1,500. CLEARLY A MANUFACTURER'S DESIGN DEFECT.*JB
MB WIRING HARNESS FAILURE. *JB
ENGINE STALLS AND RUNS ROUGH. WIRE HARNESS FAILED AND IS A SAFETY HAZARD. *NM
I HAVE A 1995 S320 BENZ . ON END OF SEPTEMBER THE ENGINE LIGHT COMES ON AND I CHANGED THE AIR MASS FLOW SENSOR THAN A MONTH LATER THE A/C SOMETIMES WORK AND OTHER TIMES NOT I CHANGED THE VACUUM HOSES THAT GOES TO AC SOLENOID PLUS THE EGR HOSE, AND ONE WIRE THAT GOES TO THE A/C RELAY. NOW THE ENGINE LIGHT AGAIN GOES ON AND I…
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I HAVE A 1995 S320 BENZ . ON END OF SEPTEMBER THE ENGINE LIGHT COMES ON AND I CHANGED THE AIR MASS FLOW SENSOR THAN A MONTH LATER THE A/C SOMETIMES WORK AND OTHER TIMES NOT I CHANGED THE VACUUM HOSES THAT GOES TO AC SOLENOID PLUS THE EGR HOSE, AND ONE WIRE THAT GOES TO THE A/C RELAY. NOW THE ENGINE LIGHT AGAIN GOES ON AND I CALLED THE DEALER AND ASK IF ANY RECALL ON 1995 S320 THEY SAY NO. YET THERE IS OVER 150 COMPLAINED TO YOUR DEPARTMENT. *NM
MY 1995 MERCEDES S320 WIRING HARNESS INSULATION DECOMPOSING. BARE WIRES ARE EXPOSED AT ENGINE COIL CONNECTIONS. THE INSULATION ON THE HARNESS WIRES IS JUST CRUMBLING. VEHICLE IS PRESENTLY DISABLED IN LIMP MODE. PRIOR TO THIS, THE VEHICLE WOULD GO INTO LIMP MODE WHILE EXECUTING TURNS. PART COST IS $750; DEALER LABOR COST I…
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MY 1995 MERCEDES S320 WIRING HARNESS INSULATION DECOMPOSING. BARE WIRES ARE EXPOSED AT ENGINE COIL CONNECTIONS. THE INSULATION ON THE HARNESS WIRES IS JUST CRUMBLING. VEHICLE IS PRESENTLY DISABLED IN LIMP MODE. PRIOR TO THIS, THE VEHICLE WOULD GO INTO LIMP MODE WHILE EXECUTING TURNS. PART COST IS $750; DEALER LABOR COST IS $600. THE WIRING MAY HAVE DAMAGED OTHER ELECTRICAL COMPONENTS (I.E.: COMPUTER OR VOLTAGE REGULATOR). THIS WIRING INSULATION PROBLEM IS NOT NORMAL WITH ANY VEHICLE, NO LESS ONE THAT COSTS $65,000 NEW. THIS MOST DEFINITELY SHOULD BE A RECALL ITEM. *JB
MY 1995 MERCEDES S320 HAS BEEN STALLING AND MISFIRING AND SOMETIMES DOESN'T START UP. I TOOK IT FOR TUNE UP, BUT THE MECHANIC SAID HE CANT DO ANYTHING BECAUSE THE FAULT WIRING HARNESS INSULATION FROM FACTORY IS PEELING OFF AND MAKING THE WIRES SHORT-CIRCUIT AND IF HE TRIES TO DO ANYTHING IT WILL MAKE IT WORSE,I HAVE TALKED TO SE…
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MY 1995 MERCEDES S320 HAS BEEN STALLING AND MISFIRING AND SOMETIMES DOESN'T START UP. I TOOK IT FOR TUNE UP, BUT THE MECHANIC SAID HE CANT DO ANYTHING BECAUSE THE FAULT WIRING HARNESS INSULATION FROM FACTORY IS PEELING OFF AND MAKING THE WIRES SHORT-CIRCUIT AND IF HE TRIES TO DO ANYTHING IT WILL MAKE IT WORSE,I HAVE TALKED TO SEVERAL MERCEDES OWNERS WITH EARLIER AND MID 90S WHO HAVE SAME PROBLEM AND I THINK THIS IS A POTENTIAL FIRE HAZARD AND YOU SHOULD PETITION THE MANUFACTURER ON OUR BEHALF. *NM
PARTS OF THE ELECTRICAL SYSTEM BEGAN FAILING. DRIVERS WINDOW WOULD NOT OPERATE AND AFTER MUCH TROUBLESHOOTING BY THE REPAIR SHOP, THE SWITCH WAS REPLACED. SEVERAL WEEKS LATER GAUGES ON THE DASH FAILED AND THE PASSENGER WINDOW AND HORN FAILED TO OPERATE. AFTER DISASSEMBLING THE INTERIOR (SEATS, CONSOLE, DASH, ETC.) THE REPAIR SH…
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PARTS OF THE ELECTRICAL SYSTEM BEGAN FAILING. DRIVERS WINDOW WOULD NOT OPERATE AND AFTER MUCH TROUBLESHOOTING BY THE REPAIR SHOP, THE SWITCH WAS REPLACED. SEVERAL WEEKS LATER GAUGES ON THE DASH FAILED AND THE PASSENGER WINDOW AND HORN FAILED TO OPERATE. AFTER DISASSEMBLING THE INTERIOR (SEATS, CONSOLE, DASH, ETC.) THE REPAIR SHOP CAME UPON THE PROBLEM - WIRES SHORTING ALL ALONG THE WIRING HARNESS AND CAUSE SPARKS AND SHORTS THROUGHOUT. *NM
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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