https://plaincars.com/make/mercedes-benz-300 New NHTSA complaints and recalls filed for the Mercedes-Benz 300. en-us Tue, 22 Sep 2026 06:43:05 GMT https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-1242261 Tue, 01 Dec 2015 00:00:00 GMT I WAS DRIVING HOME FROM WORK (IT'S A TEN MILE DRIVE ONE WAY) WHEN THE CAR STARTED TO GO FASTER AND FASTER UNTIL IT REACHED ABOUT 110 MPH. I COULDN'T GET IT TO STOP. I FORCED IT TO SLOW DOWN ENOUGH TO EXIT THE FREEWAY, LEAVING SKID MARKS IN THE ROAD, AND WAS ABLE TO TURN THE CAR OFF. I WAITED FOR A FRIEND TO COME AND SEE IF THEY COULD HELP. WHEN THEY GOT THERE THEY HAD ME TURN THE CAR ON IN PARK. T https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-1058156 Sat, 19 Apr 2014 00:00:00 GMT BROKEN SWAY BAR IN FRONT OF CAR. *TR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-1058157 Sat, 19 Apr 2014 00:00:00 GMT BROKEN SWAY BAR IN FRONT OF CAR. *TR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-1049130 Mon, 24 Mar 2014 00:00:00 GMT TL* THE CONTACT OWNS A 1999 MERCEDES BENZ 300. THE CONTACT STATED THAT HE ATTEMPTED TO START THE VEHICLE BUT THE ENGINE WOULD NOT START. THE CONTACT EXITED THE VEHICLE AND TRIED TO LOCK THE DOORS BUT NOTICED THAT THE KEY WAS NOT WORKING. THE CONTACT USED THE SPARE KEY AND DROVE THE VEHICLE TO THE DEALER WHERE THEY STATED THAT THE MAIN KEY NEEDED TO BE REPLACED. THE KEY WAS REPLACED. THE MANUFACTUR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-973273 Wed, 10 Apr 2013 00:00:00 GMT THE ENGINE HARNESS PROBLEM AFTER OWNING MY CAR SINCE 1993. IT IS CLEAR THAT THE ENGINE HARNESS WAS MADE WITH BIODEGRADABLE MATERIAL WHICH HAS NOW LOST IT'S PLASTIC COVERING OVER THE METAL WIRES. WITH WIRES EXPOSED AFTER THE ENGINE HARNESS DEGRATION, THE CAR WHICH WAS SUPPOSED TO LAST ME FOR A LONG TIME, HAS BECOME IMPOSSIBLE TO USE. WITHOUT THE PROPER HARNESS REPLACEMENT, THE CAR IS TOTALLY USE https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-933779 Mon, 13 Aug 2012 00:00:00 GMT AFTER BEING HIT FROM THE FRONT PASSENGER SIDE, THE THROTTLE STUCK IN A FULL THROTTLE MODE. THE IGNITION SWITCH DID NOT STOP THE VEHICLE, WHICH REMAINED IN FULL THROTTLE MODE AFTER TURNING TO THE OFF POSITION, AND THE BRAKES WERE IMPAIRED TO THE POINT THAT I COULD NOT OVERPOWER THE ACCELERATION, CAUSING ME TO BE FORCED TO FIND A LOCATION TO CRASH MY VEHICLE, WHICH WAS A BUILDING. EVIDENTLY, THE H https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-933780 Mon, 13 Aug 2012 00:00:00 GMT AFTER BEING HIT FROM THE FRONT PASSENGER SIDE, THE THROTTLE STUCK IN A FULL THROTTLE MODE. THE IGNITION SWITCH DID NOT STOP THE VEHICLE, WHICH REMAINED IN FULL THROTTLE MODE AFTER TURNING TO THE OFF POSITION, AND THE BRAKES WERE IMPAIRED TO THE POINT THAT I COULD NOT OVERPOWER THE ACCELERATION, CAUSING ME TO BE FORCED TO FIND A LOCATION TO CRASH MY VEHICLE, WHICH WAS A BUILDING. EVIDENTLY, THE H https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-933781 Mon, 13 Aug 2012 00:00:00 GMT AFTER BEING HIT FROM THE FRONT PASSENGER SIDE, THE THROTTLE STUCK IN A FULL THROTTLE MODE. THE IGNITION SWITCH DID NOT STOP THE VEHICLE, WHICH REMAINED IN FULL THROTTLE MODE AFTER TURNING TO THE OFF POSITION, AND THE BRAKES WERE IMPAIRED TO THE POINT THAT I COULD NOT OVERPOWER THE ACCELERATION, CAUSING ME TO BE FORCED TO FIND A LOCATION TO CRASH MY VEHICLE, WHICH WAS A BUILDING. EVIDENTLY, THE H https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-918685 Tue, 15 May 2012 00:00:00 GMT TL* THE CONTACT OWNS A 1989 MERCEDES BENZ 300SE. THE CONTACT STATED WHEN DRIVING 45 MPH HE DEPRESSED THE ACCELERATOR PEDAL AND THE VEHICLE STALLED. THE ENGINE RETURNED TO IDLE SPEED AND REMAINED IDLE WITH THE RPM'S INCREASING. THE CONTACT STATED NHTSA RECALL CAMPAIGN ID NUMBER: 93V095000, VEHICLE SPEED CONTROL. THE DEALER WAS NOT NOTIFIED OF THE FAILURE. THE MANUFACTURER WAS NOTIFIED AND STATED TH https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-912461 Sat, 31 Mar 2012 00:00:00 GMT ENGINE STOP RUNNING WHILE DRIVING. CAR WAS TOWED TO MECHANIC WHO FOUND THAT ENGINE HARNESS WAS COMPLETELY DEGRADED AND WIRES WERE TOUCHING EACH OTHER THANK GOD IT DID NOT CATCH FIRE INSTEAD IT SHUT OFF. MY MECHANIC SAYS THAT HE SEES THIS ALOT AND THAT THIS SHOULD NOT HAPPEN TO A VEHICLE LIKE THIS. *JS https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-892417 Mon, 28 Nov 2011 00:00:00 GMT MY WIRING HARNESS HAS FAILED ON MY 1993 300E MERCEDES BENZ THE INSULATION COME OFF WIRING. *KB https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-892418 Mon, 28 Nov 2011 00:00:00 GMT MY WIRING HARNESS HAS FAILED ON MY 1993 300E MERCEDES BENZ THE INSULATION COME OFF WIRING. *KB https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-872131 Sat, 06 Aug 2011 00:00:00 GMT MY RESEARCH INDICATE THAT THIS ENGINE WIRING HARNESS PROBLEM IS AN ONGOING ISSUE FOR MANY MERCEDES BENZ, 300 E, AND 300SE CARS WITH THE TWIN CAM ENGINES MADE BETWEEN THE YEARS OF 1993-1995. NOT ONLY I AM UNABLE TO HAVE ROUTINE MAINTENANCE DONE, BUT I AM TOLD BY THE REPAIR FACILITY THAT THIS PRESENTS A SAFETY PROBLEM, BECAUSE THERE IS A RISK OF FIRE ASSOCIATED WITH THIS DEFECT. *TT https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-853540 Wed, 27 Apr 2011 00:00:00 GMT DURING NORMAL OPERATION OF MY VEHICLE, THE VEHICLE BEGAN TO ACT ERRATICALLY. AT START, THE VEHICLE WOULD NOT NORMALLY IDLE; INSTEAD IT LURCHED BETWEEN 500-1500 RPM. DURING OPERATION, AT A RANDOM POINTS, THE VEHICLE WOULD NOT RESPOND TO PRESSING THE GAS, INSTEAD SURGING POWER UNTIL I STOP AND IDLE FOR A MINUTE. IT TURNS OUT THAT THE PROBLEM IS ATTRIBUTABLE TO THE WIRING HARNESS, WHICH IS DISINTEGRA https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-849754 Fri, 01 Apr 2011 00:00:00 GMT I WAS DRIVING DOWN THE STREET WHEN SMOKE BEGAN TO COME FROM BENEATH THE HOOD AND INTO THE VEHICLE. I PULLED OVER AND OPENED THE HOOD AND SAW FLAMES COMING OUT FROM UNDERNEATH THE BATTERY COMPARTMENT. AFTER EXTINGUISHING THE FIRE THE CAR NO LONGER STARTED. UPON INSPECTION ALL OF THE ELECTRICAL WIRING HAD MELTED. *TR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-748186 Mon, 14 Dec 2009 00:00:00 GMT TL*THE CONTACT OWNS A 1985 MERCEDES BENZ 300. THE CONTACT STATED THAT TWO REAR TIRES AND ONE ON THE DRIVER SIDE FAILED. ONE TIRE BLEW OUT AND THE OTHER TWO EXPERIENCED TREAD FAILURE. THEY ARE REPLACEMENT TIRES AND THE TIRE SIZE IS 195/70R14. THE TIRE COMPANY IS TBC CORPORATION AND THE BRAND NAME IS CENTERED. THE CONTACT STATED THAT HE WAS UNABLE TO CONTACT THE MANUFACTURER. THE CONTACT HAS OWNED T https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-738268 Sun, 04 Oct 2009 00:00:00 GMT MY 1991 300SL BENZ HAS HAD TO HAVE THE ENGINE WIRING HARNESS REPLACED PER MB DEALER BECAUSE IT'S GOING BAD AND DECOMPOSING CAUSING A POTENTIAL FIRE PROBLEM. THIS AFTER A NO START PROBLEM AND A MONTH IN THE SHOP. AND THEY NOT BEING ABLE TO FIND THE CAUSE. NOW , AFTER REPLACING THE HARNESS , THEY ARE STILL NOT ABLE TO FIND THE PROBLEM. I HAVE BEEN TOLD THAT THE HARNESS IS A "GREEN WIRING HARNESS" https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-702377 Sat, 03 Jan 2009 00:00:00 GMT 1995 MERCEDES BENZ E300 DIESEL, WIRING HARNESS IS DEFECTIVE. INSULATION IS FAILING AND WIRES ARE EXPOSED. I AM CONCERNED THIS COULD BE A FIRE HAZARD. *TR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-696170 Wed, 12 Nov 2008 00:00:00 GMT 1. BURNING SMELL 2. POOR RUNNING FAST IDLE TO NO IDLE 3. BM NEVER HEARD OF THE PROBLEM. *TR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-691147 Mon, 06 Oct 2008 00:00:00 GMT CAR LOOSING POWER WHEN DRIVING. *TR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-672168 Mon, 02 Jun 2008 00:00:00 GMT THE ENGINE / FUEL INJECTION WIRING HARNESS OF MY 1993 MERCEDES-BENZ 300E HAS CRACKED INSULATION THROUGHOUT AND IS BEGINNING TO SHORT OUT WITH THE RISK OF CAUSING DANGEROUS ENGINE MALFUNCTION AND EVEN FIRE INSIDE MY ENGINE COMPARTMENT. I HAVE READ MANY REPORTS OF OTHER MERCEDES-BENZ CARS OF THE SAME AGE RANGE HAVING THE EXACT SAME DEFECT. I HAVE BROUGHT IT IN TO MY MECHANIC SEVERAL TIMES BECAUSE OF https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-672169 Mon, 02 Jun 2008 00:00:00 GMT THE ENGINE / FUEL INJECTION WIRING HARNESS OF MY 1993 MERCEDES-BENZ 300E HAS CRACKED INSULATION THROUGHOUT AND IS BEGINNING TO SHORT OUT WITH THE RISK OF CAUSING DANGEROUS ENGINE MALFUNCTION AND EVEN FIRE INSIDE MY ENGINE COMPARTMENT. I HAVE READ MANY REPORTS OF OTHER MERCEDES-BENZ CARS OF THE SAME AGE RANGE HAVING THE EXACT SAME DEFECT. I HAVE BROUGHT IT IN TO MY MECHANIC SEVERAL TIMES BECAUSE OF https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-672170 Mon, 02 Jun 2008 00:00:00 GMT THE ENGINE / FUEL INJECTION WIRING HARNESS OF MY 1993 MERCEDES-BENZ 300E HAS CRACKED INSULATION THROUGHOUT AND IS BEGINNING TO SHORT OUT WITH THE RISK OF CAUSING DANGEROUS ENGINE MALFUNCTION AND EVEN FIRE INSIDE MY ENGINE COMPARTMENT. I HAVE READ MANY REPORTS OF OTHER MERCEDES-BENZ CARS OF THE SAME AGE RANGE HAVING THE EXACT SAME DEFECT. I HAVE BROUGHT IT IN TO MY MECHANIC SEVERAL TIMES BECAUSE OF https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-670019 Thu, 15 May 2008 00:00:00 GMT VEHICLE IS 1993 MERCEDES 300E SEDAN. 1. STRANGE THINGS GO ON WITH THE ELECTRICAL SYSTEM 2. WHEN UNLOCKING KEY, SOMETIMES THE ALARM WILL GO ON. 3. CHECK ENGINE LIGHT WILL NOT GO OFF EVEN AFTER REPAIR WAS DONE. 4. SOMETIMES AIR BLOWER WILL WORK, SOMETIMES NOT. 5. SOMETIMES ANTENNA WILL COME UP, SOMETIMES NOT. THIS LEADS ME TO BELIEVE THAT THE WIRING HARNESS MIGHT BE AFFECTING THE CAR'S ELE https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-669045 Thu, 08 May 2008 00:00:00 GMT 1993 300E 3.2 M104 ENGINE WIRING HARNESS DISINTERGRATING, WIRE INSULATION FALLS APART ENTIRE WIRING HARNESS WIRES EVEN NOT EXPOSED TO HEAT DAMAGED. CHRONIC PROBLEM ALL 3 OF OUR MERCEDES HAVE THIS PROBLEM THE 300E THE WORST. I WORKED AT MERCEDES AND REPLACED THESE HARNESS EVERY WEEK. THIS IS VERY UNSAFE CAN RESULT IN FIRES, ECM FAILURE, DRIVABLE ISSUES, NO START, AND MANY MORE PROBLEMS. *TR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-667412 Sun, 27 Apr 2008 00:00:00 GMT THE ENGINE WIRING HARNESS OF MY MERCEDES 1993 300E WIRES HAD DISINTEGRATED CAUSING SHORTAGES ON THE WIRES. IT IS UNBELIEVABLE MERCEDES WITH SUCH HIGH REPUTATION ON QUALITY WOULD IGNORE SUCH FAILURES ON THEIR PART. *TR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-667019 Wed, 23 Apr 2008 00:00:00 GMT ADDITIONAL SPACE IS NEEDED TO PROVIDE A COPY OF THE COMPLAINT AND EXPERTS' OPINIONS WHICH CONTAIN THE REQUESTED INFORMATION. PLEASE PROVIDE ME AN E-MAIL ADDRESS, A MAILING ADDRESS AND/OR A FAX NUMBER. THANK YOU. *TR THE CONSUMERS 4 OLD SON WAS INSIDE THE VEHICLE. AS THE MOTHER WAS REMOVING THE CHILD FROM THE VEHICLE, THE CHILD INADVERTENTLY MADE CONTACT WITH THE CENTER AUTOMATIC TRANSMISSION S https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-662514 Fri, 21 Mar 2008 00:00:00 GMT CRACKS IN THE REAR SUB-FRAME THE NECESSITATED A $3,000 REPAIR THAT MERCEDES-BENZ WOULD NOT COVER. IT WAS RECOMMENDED THAT I NOT DRIVE THE CAR UNTIL THE REPAIR WAS MADE. THE PIECE IN QUESTION WAS ABOVE THE REAR AXLE AND SUPPORTED THE SUSPENSION AND REAR SPRINGS. FROM RESEARCH I HAVE DONE IT AFFECTED 1987-1988 MERCEDES STATION WAGONS. I READ THAT MERCEDES COVERED THIS REPAIR FOR 10 YEARS, BUT NO https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-653928 Wed, 16 Jan 2008 00:00:00 GMT FUEL INJECTOR HARNESS IS DRY ROTTED AS SEEN IN THE IMAGES ON THIS SITE. I JUST RECENTLY DISCOVERED THAT THERE IS A MAJOR DEFECT WITH THE HARNESS ASSEMBLY DUE TO POOR WORKMANSHIP THIS IS CERTAINLY A MANUFACTURING DEFECT. MERCEDES SHOULD REPLACE THE HARNESS FREE OF CHARGE. *TR https://plaincars.com/make/mercedes-benz-300 https://plaincars.com/make/mercedes-benz-300#complaint-651722 Wed, 02 Jan 2008 00:00:00 GMT CAR STALLS AT 40+ MPH IN TRAFFIC APPARENTLY CHOKED FOR FUEL. AFTER 5 TO 10 MINUTES AT REST - THE CAR CAN BE STARTED ALTHOUGH THE KEY MUST BE HELD IN THE START POSITION FOR 30 TO 40 SECONDS. THIS IS A 1996 300D MERCEDES BENZ 4-DOOR SEDAN. IT WAS DIAGNOSED BY A CERTIFIED MERCEDES BENZE REPAIR CENTER, CUMMINS AUTOMOTIVE, WHICH VERIFIED THRU FAULT CODES THAT HE ENGINE WIRING HARNESS IS BAD. UPON