Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 13 of 13 reports include usable mileage. There isn’t enough coverage to show a useful chart.
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 12 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine And Engine Cooling. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Equipment. 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.
0 crash reports3 fire reports1 injury reports
What owners actually said
13 reports
79,500 miles · Apr 6, 2011
Electrical System
I RECENTLY PURCHASED A 1995 MERCEDES BENZ MODEL SL600. SHORTLY AFTER GETTING THE CAR HOME THE CHECK ENGINE LIGHT CAME ON AND A FEW DAYS AFTER THAT THE ASR WARNING LIGHT CAME ON SO I STARTED TO RESEARCH WHAT MIGHT BE CAUSING THE PROBLEMS. AFTER EXTENSIVE RESEARCH I FOUND AN ONLINE WEBSITE WHICH HAD SEVERAL ARTICLES ABOUT THE POSS…
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I RECENTLY PURCHASED A 1995 MERCEDES BENZ MODEL SL600. SHORTLY AFTER GETTING THE CAR HOME THE CHECK ENGINE LIGHT CAME ON AND A FEW DAYS AFTER THAT THE ASR WARNING LIGHT CAME ON SO I STARTED TO RESEARCH WHAT MIGHT BE CAUSING THE PROBLEMS. AFTER EXTENSIVE RESEARCH I FOUND AN ONLINE WEBSITE WHICH HAD SEVERAL ARTICLES ABOUT THE POSSIBLE CAUSES. THE WEBSITE RECOMMENDED THAT THE WIRING SHOULD BE INSPECTED FOR CRACKING AND DETERIORATION OF THE INSULATION. UPON INSPECTION I DISCOVERED THAT THE INSULATION ON MUCH OF THE WIRING GOING TO THE MASS AIR FLOW COMPONENTS AND THE ELECTRONIC THROTTLE ACTUATORS WAS CRACKED AND FALLING OFF THE WIRES LEAVING ONLY BARE WIRES WHICH ARE IN CONTACT WITH EACH OTHER. I ALSO FOUND THAT THIS IS PROBLEM IS WELL KNOWN TO MERCEDES BENZ AND HAS BEEN FOR A NUMBER OF YEARS BUT THEY HAVE NOT ACCEPTED RESPONSIBILITY FOR IT. THE PROBLEM IS COMPLETELY PREVENTING ME FROM USING THE VEHICLE AT THIS POINT DUE TO THE HIGH POSSIBILITY OF AN ENGINE FIRE CAUSED BY THE WIRES SHORT CIRCUITING AND ALSO THE PROBABILITY OF DOING DAMAGE TO THE CONTROL MODULES AND COMPUTERS WHICH ARE VERY EXPENSIVE RO REPLACE. *TR
NHTSA ODI #10394462
69,300 miles · Jan 30, 2011
Electrical SystemFire
1995 SL600 WITH COMPLETELY ERODED ENGINE WIRE HARNESS. ALMOST ALL THE INSULATION ON THE WIRES ARE GONE LEAVING BARE WIRES. THIS IS COMPLETELY RIDICULOUS FOR A 100K CAR. *TR
NHTSA ODI #10379595
111,000 miles · Sep 22, 2010
Electrical System
MY 1995 MERCEDES BENZ SL600 (VIN [XXX])WAS CONSTRUCTED WITH ELECTRICAL WIRING WHICH HAS INSULATION WHICH DEGRADES OVER TIME. THIS CAUSES MANY PROBLEMS, THE MOST SERIOUS IN MY CASE BEING A DECELERATION WHEN THE GAS PEDAL IS DEPRESSED TOO FAR. THIS IS EXTREMELY DANGEROUS WHEN MERGING INTO TRAFFIC. IT IS A WIDELY KNOWN DEFECT IN M…
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MY 1995 MERCEDES BENZ SL600 (VIN [XXX])WAS CONSTRUCTED WITH ELECTRICAL WIRING WHICH HAS INSULATION WHICH DEGRADES OVER TIME. THIS CAUSES MANY PROBLEMS, THE MOST SERIOUS IN MY CASE BEING A DECELERATION WHEN THE GAS PEDAL IS DEPRESSED TOO FAR. THIS IS EXTREMELY DANGEROUS WHEN MERGING INTO TRAFFIC. IT IS A WIDELY KNOWN DEFECT IN MANY MERCEDES BUILT BETWEEN 1991 AND 1997. MERCEDES REFUSES TO FIX THE EXPENSIVE REPAIR. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). I HAVE HAD THE DEFECTIVE WIRING HARNESS REPLACED AT A COST OF OVER $2000.00, I AM AWAITING INFORMATION ON OTHER REPAIRS CAUSED BY THE FAULTY WIRING. *TR
NHTSA ODI #10356988
140,000 miles · Aug 9, 2010
Electrical System
I BOUGHT A NEW MB 1995 SL320, ABOUT 18 MONTHS LATER I HAD A PROBLEM WITH IT AND WAS TOLD ITS THE ENGINE WIRE HARNESS WHICH WAS REPLACED AT NO COST TO ME, HOWEVER I HAVE BEEN HAVING PROBLEM WITH THE CAR ( IDLE AND HESITATION AND BAD SMELL FROM THE EXHAUST ) FOR A WHILE AND FINALLY I SAW IT , THE WIRES HAVE DISINTEGRATED INSIDE TH…
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I BOUGHT A NEW MB 1995 SL320, ABOUT 18 MONTHS LATER I HAD A PROBLEM WITH IT AND WAS TOLD ITS THE ENGINE WIRE HARNESS WHICH WAS REPLACED AT NO COST TO ME, HOWEVER I HAVE BEEN HAVING PROBLEM WITH THE CAR ( IDLE AND HESITATION AND BAD SMELL FROM THE EXHAUST ) FOR A WHILE AND FINALLY I SAW IT , THE WIRES HAVE DISINTEGRATED INSIDE THE SLEEVES ALL WIRE ARE TOUCHING, SOME WIRE HAVE NO INSULATION AT ALL JUST A COPPER WIRE, THEY KNEW OF THE PROBLEM OR SHOULD HAVE KNOWN THEN YOU SEE THEIR COMMERCIALS BUILT LIKE NO OTHER CAR. ITS GONNA COST MORE MONEY TO FIX THE CAR THAT THE CAR IS WORTH, I THINK MB SHOULD HAVE A RECALL AND FIX THE PROBLEM FREE, OR THERE SHOULD BE A CLASS ACTION LAWSUIT AGAINST THEM. *TR
NHTSA ODI #10348130
101,000 miles · May 10, 2010
Electrical System
MY CARS RPM IN IDLE AND IN DRIVE SUDDENLY WILL GO UP TREMENDOUSLY AND THEN DOWN BACK TO NORMAL. RECENTLY IT STAYS IN A HIGH RPM MODE. *TR
NHTSA ODI #10329788
72,000 miles · Mar 22, 2010
Electrical SystemVehicle Speed Control
MY 1995 MERCEDES BENZ SL600 (VIN [XXX])WAS CONSTRUCTED WITH ELECTRICAL WIRING WHICH HAS INSULATION WHICH DEGRADES OVER TIME. THIS CAUSES MANY PROBLEMS, THE MOST SERIOUS IN MY CASE BEING A DECELERATION WHEN THE GAS PEDAL IS DEPRESSED TOO FAR. THIS IS EXTREMELY DANGEROUS WHEN MERGING INTO TRAFFIC. IT IS A WIDELY KNOWN DEFECT IN …
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MY 1995 MERCEDES BENZ SL600 (VIN [XXX])WAS CONSTRUCTED WITH ELECTRICAL WIRING WHICH HAS INSULATION WHICH DEGRADES OVER TIME. THIS CAUSES MANY PROBLEMS, THE MOST SERIOUS IN MY CASE BEING A DECELERATION WHEN THE GAS PEDAL IS DEPRESSED TOO FAR. THIS IS EXTREMELY DANGEROUS WHEN MERGING INTO TRAFFIC. IT IS A WIDELY KNOWN DEFECT IN MANY MERCEDES BUILT BETWEEN 1991 AND 1997. MERCEDES REFUSES TO FIX THE EXPENSIVE REPAIR. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10321332
66,000 miles · Jan 12, 2009
Electrical System
CAR KEEPS STALLING PUTTING ME IN DANGER, ESPECIALLY ON HIGHWAY TRAVEL. THE PROBLEM HAS BEEN PERSISTENT SINCE I BOUGHT THE VEHICLE. *TR
NHTSA ODI #10254693
46,000 miles · May 20, 2008
Electrical System
WIRE HARNESS INSULATION DETERIORATING. *TR
NHTSA ODI #10228274
132,223 miles · Mar 20, 2008
Electrical SystemFire
THE ENGINE COMPARTMENT WIRING HARNESS ON MY 1995 SL320 WAS REPLACED IN 1997 AND HAS DETERIORATED AND BROKE DOWN AGAIN CAUSING A FIRE. *TR
DEFECTIVE ENGINE WIRING HARNESS, CRACKED, CRUMBLED INSULATION, EXPOSING BARE WIRES AND SHORTING ASR, TRACTION CONTROL, FUEL INJECTION THROTTLE VALVE, AC NOT WORKING. THE I HAVE SPENT THOUSANDS OF DOLLARS AND MANY HOURS ONLY TO FIND OEM WIRE IS DEFECTIVE! THE MB DEALER WANTS $ 6,000 FOR ONLY 1) SIDE OF THROTTLE VALVE REPAIR/REPLA…
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DEFECTIVE ENGINE WIRING HARNESS, CRACKED, CRUMBLED INSULATION, EXPOSING BARE WIRES AND SHORTING ASR, TRACTION CONTROL, FUEL INJECTION THROTTLE VALVE, AC NOT WORKING. THE I HAVE SPENT THOUSANDS OF DOLLARS AND MANY HOURS ONLY TO FIND OEM WIRE IS DEFECTIVE! THE MB DEALER WANTS $ 6,000 FOR ONLY 1) SIDE OF THROTTLE VALVE REPAIR/REPLACEMENT AND THE CAR HAS 2). AND THE THROTTLE VALVE IS NOT THE PROBLEM THE DEFECTIVE WIRING IS THE PROBLEM! ITS PLAIN TO SEE THAT NOTHING CAN FUNCTION PROPERLY IF BARE WIRES ARE SHORTING OUT THE ELECTRICAL SYSTEM! THIS IS NOT AN ISOLATED PROBLEM, ALL WIRES IN THE ENGINE HARNESS ARE BAD!!! *TR
NHTSA ODI #10205907
Official recalls
0
No 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
0
No exact-year investigations in this snapshot.
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