RoadVitals

1994 Mercedes-Benz 600

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
8
Latest May 11, 2014
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
1
Latest Sep 19, 1996
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0

Overview

Our database contains 8 NHTSA owner-reported complaints for the 1994 Mercedes-Benz 600, most frequently naming the electrical, engine and fuel system categories. 1 safety recall has been issued covering this model year.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Electrical646.2%
  • Engine323.1%
  • Fuel system215.4%
  • Driver assistance17.7%
  • Powertrain (other)17.7%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

1 campaign cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov

VISIBILITY

Sep 19, 1996
28,874 units potentially affected
The defect: IF ONE OF THE HEADLAMP WIPER ARMS BECOMES MISALIGNED, THE WIPER BALDE CAN LODGE IN THE GROOVE UNDER THE HEADLAMP. IF THE WASHERS ARE ACTIVATED WITH THE WIPER BLADE IN THE MISALIGNED AND LODGED POSITION, THE WASHER PUMP WILL RUN CONTINUOUSLY EXPELLING ALL AVAILABLE FLUID.
The risk: PUMP OPERATION IN THE ABSENCE OF FLUID CAN CAUSE THE PUMP TO OVERHEAT AND CAUSE A VEHICLE FIRE.
The remedy: DEALERS WILL REPLACE THE HEADLAMP WASHER PUMP ON THESE VEHICLES.
MERCEDES-BENZ USA, INC.View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Electrical
Filed May 11, 2014

DETERIORATED INSULATION ON ETA HARNESS AND STATING HARNESS CAUSED ELECTRICAL SHORT. VEHICLE TO STALLED ON THE BUSY ROAD. MAIN ELECTRICAL HARNESS AND ONE OF THE ETA'S HAS BEEN ALREADY REPLACED BECAUSE OF THE SAME INSULATION ISSUE. *TR

NHTSA ID
10587645
Incident
Sep 16, 2013
Mileage
80,000 mi
ElectricalEngineFuel system
Filed Jul 20, 2011

THE WIRING HARNESSES FOR THE ENGINE AND OTHER COMPONENTS OF THE CAR HAVE DISINTEGRATED DUE TO DEFECTIVE MANUFACTURING PROCESSES. THE INSULATION ON THE WIRES DETERIORATE PREMATURELY ALLOWING THE WIRES TO SHORT OUT AND AFFECT AND HARM MOST OF THE COMPONENTS OF THE CAR. THE MANUFACTURER IS AWARE OF THE DEFECT, BUT REFUSES TO PROVIDE A SOLUTION OR TO ASSIST IN ANY WAY. THE ASR, & SRS SYSTEMS WERE DISABLED INTERMITTENTLY, THE CAR STALLED ON THE HIGHWAY AND THE ENGINE WOULD SURGE OCCASIONALLY. I BOUGHT THIS CAR USED, BUT IT WAS IN VERY GOOD CONDITION AND THIS MAJOR MANUFACTURING PROBLEM SHOULD NOT HAVE HAPPENED.

NHTSA ID
10414468
Incident
Nov 15, 2010
Mileage
90,000 mi
Driver assistanceEngineFuel system+1 more
Filed Feb 11, 2010

THE VEHICLE UNEXPECTEDLY DEVELOPED SUDDEN ACCELERATION WHEN SWITCHING FROM PARK TO REVERSE OR ANY OTHER GEAR. THE FIRST TIME IT OCCURRED, IT ALMOST RAN OVER MY CHILD WHO WAS PLAYING NEARBY AND I WAS TRYING TO BACK UP THE CAR OUT OF THE GARAGE FOR A WASH. ONE MOMENT THE VEHICLE RUNS FINE, THE NEXT IT SUDDENLY AND UNEXPECTEDLY ACCELERATES TO A HIGH RPM, EVEN BURNING TIRES IN THE PROCESS.AFTER TROUBLESHOOTING, IT WAS DISCOVERED THAT THE THROTTLE ACTUATOR ("ELECTRONIC THROTTLE ACTUATOR" "THROTTLE BODY") WIRING HARNESS HAD MULTIPLE SHORT CIRCUITS AS A RESULT OF THE WELL KNOWN MERCEDES WIRING HARNESS DEFECT (WHICH AFFECTS THE MAIN ENGINE WIRE HARNESS, ANOTHER SOURCE OF DANGER AND CAUSE OF MANY ACCIDENTS). THE WIRES' INSULATION OF THE INTERNAL WIRES PREMATURELY DISINTEGRATED AND TURNED TO DUST. THIS CAUSED MULTIPLE SHORTS AND THE UNEXPECTED BEHAVIOR. PLEASE NOTE THAT THIS IS A 400HP VEHICLE AND AS A RESULT OF THIS DEFECT IT TURNED LITERALLY INTO A KILLING MACHINE. THE VEHICLE HAS UNDER 50,000 MILES SINCE NEW AND COST $140,000 IT HAS NEVER BEEN PARKED OUTSIDE AND WAS, UP TO NOW, CONSIDERED A SHOWPIECE AND MAINTAINED WITH THE UTMOST CARE. MERCEDES BENZ WAS CONTACTED AND REFUSED TO HONOR ANY REPAIRS. THERE ARE SEVERAL THOUSAND COMPLAINTS ABOUT THIS DEFECT YET THE NHTSA HAS DONE NOTHING ABOUT INVESTIGATING MERCEDES BENZ. IT IS ESTIMATED THAT OVER 100 LIVES HAVE BEEN LOST WORLDWIDE AND MERCEDES HAS QUIETLY SETTLED THE MOST NOTORIOUS ACCIDENTS. THIS IS WELL KNOWN TO MERCEDES BENZ AND THE INTERNET IS REPLETE WITH EVIDENCE. OVER TWO MILLION VEHICLES ARE AFFECTED. I CONTACTED BOSCH ENGINEERING, THE CONTRACT MANUFACTURERS OF THE PARTS AND SPOKE WITH AN ENGINEER. BOSCH IS FULLY AWARE OF THE DEFECT AND THEY BASICALLY CLAIM THAT THESE UNSUITABLE, LOW-QUALITY WIRES WERE SPECIFICALLY REQUESTED BY MERCEDES-BENZ IN THEIR DESIGN. THIS IS A $3+ BILLION ENGINEERING PROBLEM THAT MERCEDES HAS REFUSED TO ADDRESS AND THE NHTSA, PRESUMABLY AS A RESULT OF POLITICAL PRESSURE HAS NOT INVESTIGATED. *TR

NHTSA ID
10308743
Incident
Nov 1, 2009
Mileage
49,000 mi
Electrical
Filed Sep 22, 2008

I BOUGHT A CAR ON EBAY, THE OWNER DECLARED THE CAR WAS FINE AND I PROCEEDED WITH THE SALE. I DROVE UP TO PA. TO PICK THE CAR UP AND THE GENTLEMAN SAID THE CHECK ENGINE LIGHT CAME ON AS SOON AS HE STARTED IT THAT MORNING. WE THEN WENT TO A REPAIR SHOP AND THEY SAID IT WAS A O2 SENSOR, AND QUOTED ME $200,00 INSTALLED. I DECLINED AND BROUGHT THE CAR HOME TO HAVE MY OWN PEOPLE WORK ON THE CAR. WHEN I WENT TO THE REPAIR SHOP THEY TOLD ME THE WIRING HARNESS WAS SHOT AND HAD TO BE REPLACED. $2,000.00. I TOLD THE SELLER AND HE SAID TOO BAD FOR YOU, NO I HAVE A CAR I CANNOT DRIVE AS IT REEKS OF GAS AND STALLS OUT WHEN I PUT THE GAS ON. I AM DEVASTATED TO FIND OUT THAT MERCEDES HAS KNOWN ABOUT THIS PROBLEM AND IS NOT HELPING PEOPLE SOLVE THE PROBLEM. I OWN A RUSTING PIECE OF GARBAGE I CANNOT DRIVE AS I CANNOT AFFORD THE REPAIRS. NO INJURIES HAVE BEEN INCURRED AS THE CAR IS NOT DRIVABLE. *TR

NHTSA ID
10243123
Incident
Jul 25, 2008
Mileage
110,000 mi
Engine
Filed Aug 12, 2008

COOLING SYSTEM LINK, DIAGNOSED TO BE A 4 WAY HEATER HOSE CONNECTOR WHICH MOUNTS ON THE FIREWALL OF MY 1994 S600. INTAKE MANIFOLD MUST BE TAKEN OFF WHICH HAD A WIRING HARNESS LEADING THREW IT WHICH IN TURN CRUMBLED AND FUSED TOGETHER WHICH LEAD TO MULTIPLE ISSUES AND DAMAGE TO MANY DIFFERENT COMPONENTS AND PARTS. AFTER THE COOLANT LEAK WAS FIXED THE CAR NEVER RAN THE SAME. AFTER DIAGNOSTICS AT AN OFFICIAL MERCEDES DEALERSHIP RESULTED IN MULTIPLE WIRE HARNESSES NEEDING TO BE REPLACED, AS WELL AS OTHER COMPONENTS BEING DAMAGED IN THE PROCESS AND NEEDING TO BE REPLACED THE DOLLAR FIGURE AS OF 8/12/2008 $42,000 AND AS OF TODAY THE ENGINE LIGHT CAME ON AND WE ARE GOING BACK TO THE DEALERSHIP TO HAVE THE CAR DIAGNOSED AGAIN. WE HAVE BEEN TOLD BY MERCEDES SERVICE EMPLOYEES THAT THIS IS A VERY COMMON DEFECT AND IS A TYPICAL FAILURE ON 91-96 MERCEDES BENZ (ALL MODELS) INCLUDING THE V-12 S600 THAT I OWN. WE HAVE ALL DOCUMENTATION, RECORDS AND RECEIPTS OF ALL REPAIRS AND I FEEL THAT THIS IS COMPLETELY UNACCEPTABLE FROM A REPUTABLE MANUFACTURER LIKE MERCEDES BENZ AND FEEL LIKE I SHOULD COMPENSATED FOR MY EXPENSES DUE TO THIS TYPICAL ISSUE AND FEEL THAT WE ALL SHOULD BE GIVEN A RESPONSE FROM MERCEDES AS TO WHY THIS HASN'T BEEN DEALT WITH PROFESSIONALLY. *TR

NHTSA ID
10237919
Incident
Aug 8, 2007
Mileage
79,000 mi
Electrical
Filed Jan 12, 2008

I OWN A 1994 MERCEDES S600, 12 CYLINDER COUPE. THE CAR LISTED FOR $135,000 AND CURRENTLY HAS ONLY 88,000 MILES. IT HAS BEEN GARAGED SINCE IT WAS PURCHASED AND HAS BEEN SERVICED EXACTLY TO MANUFACTURERS SUGGESTED SCHEDULE AND ALWAYS BE AN AUTHORIZED DEALER. I WAS RECENTLY ADVISED BY A SERVICE MANAGER AT MERCEDES IN NASHVILLE THAT RECENT PROBLEMS WITH HANDLING AND TROUBLE LIGHTS WERE BEING CAUSED BY FAULTY WIRING INSULATION WHICH IS WELL KNOWN BY THIS DEALER AND ALSO BY MERCEDES .. I WAS ADVISED BY THE NASHVILLE DEALER THAT TO REPAIR THE CAR WOULD COST $14,000. I WAS ALSO ADVISED THAT MERCEDES IS WELL AWARE OF THE PROBLEM AND THAT THEY REFUSE TO STAND BEHIND THE WIRING OR TO OFFER ANY FINANCIAL HELP TO REPAIR IT. I INVESTIGATED THIS MATTER ON THE INTERNET AND WAS ASTONISHED TO FIND THAT A LARGE NUMBER OF PEOPLE HAVE EXPERIENCED THE SAME PROBLEM AND THAT MANY FIRES AND ACCIDENTS HAVE OCCURRED. THIS DEFECT IS WELL DOCUMENTED AND WIDESPREAD. I RESPECTFULLY REQUEST THAT YOU TAKE THE NECESSARY ACTION TO REQUIRE MERCEDES TO DEAL WITH THIS ISSUE AND REPLACE THE DANGEROUS WIRING BEFORE DEATH AND CLASS ACTION LAW SUITS, WHICH SEEM INEVITABLE, MAKE US ALL WISH WE HAD DONE WHAT WE COULD. *TR

NHTSA ID
10214605
Incident
Jan 10, 2008
Mileage
82,500 mi
Electrical
Filed Apr 16, 2007

I PURCHASED A 1994 SL600 ABOUT 6 MONTHS AGO WHICH HAD ONLY 56,000 MI ON IT. IT WAS SOLD TO ME AS A LIKE NEW AUTO. WELL, IT IS FAR FROM LIKE NEW BUT THE PROBLEM I WILL MENTION TO YOU IS THE WIRING HARNESS WHICH HAS VIRTUALLY DISINTEGRATED AND HAS TO BE REPLACED AT AN EXORBITANT PRICE. THE DISINTEGRATING WIRING HARNESS HAS CAUSED ME ENORMOUS PROBLEMS WITH THIS CAR,NOT TO MENTION THE LIKELIHOOD OF BEING A FIRE HAZARD. I UNDERSTAND THIS IS A WELL KNOWN PROBLEM WITH MERCEDES 91-96 MODELS AND I WANT TO ADD MY NAME TO THE LISTS OF COMPLAINTS. *JB

NHTSA ID
10188056
Incident
Apr 16, 2007
Mileage
56,000 mi
Electrical
Filed Jan 17, 2007

VEHICLE HAS HAD VARIOUS ANOMALIES OCCURRING OVER SEVERAL MONTHS INVOLVING ENGINE SPUTTERING AND ABUNDANT SMOKE FROM ENGINE. NUMEROUS SERVICE ATTEMPTS DID NOT RESOLVE PROBLEM AS ALL CLUES WERE INTERMITTENT. WARNING LIGHTS ON DASH FOR "CHECK ENGINE" "SRS" "ASR" AND OTHERS WOULD APPEAR CERTAIN TIMES UPON IGNITION, WHILE OTHERS APPEAR NEXT TIME. FINALLY, THE VEHICLE WOULD ONLY START BUT NOT MAINTAIN IDLE INDEPENDENT OF APPLYING ACCELERATOR, AND THEN ONLY TRAVEL AT A MAX SPEED OF 20 MPH AT 3000 RPM. MECHANIC DETERMINED THAT DETERIORATED ENGINE HARNESS EXPOSING HV WIRES HAD DAMAGED THE LEFT AND RIGHT THROTTLE CONTROL AND THE EFP CONTROL UNIT. THE TIGHT GROUPED VOLUME OF WIRES WERE DECAYED, CHECKED, OR POWDERIZED THROUGHOUT ITS ENTIRETY, AND COUPLED WITH NOW SHORTED-OUT DAMAGED COMPONENTS, CAUSED THE SMOKING AND SPUTTERING... A RECIPE FOR FIRE. AND FIRE IS EXACTLY WHAT'S OCCURRED TO THE MANY OTHERS EXPERIENCING THIS SAME SORT OF DECAYED WIRING HARNESS PROBLEM THAT I'VE ONLY NOW LEARNED FROM YOUR WEBSITE AND OTHER INTERNET SOURCES HAS BEEN PREVALENT AND KNOWN FOR YEARS. CONSEQUENTLY, THE LIST PRICE FOR THIS NEW HARNESS AND THE THREE COMPONENTS EXCEED $13,000.00, WHILE FROM THEIR MODEST APPEARANCE, THEIR COST TO CONSTRUCT ARE LIKELY ONLY SEVERAL HUNDRED DOLLARS. FIRST AND FOREMOST, THESE HARNESSES SHOULD ALL BE RECALLED TO ENSURE THAT NO FIRES OCCUR. MOREOVER, MERCEDES HAS ALREADY RECOVERED THERE "R&D" COSTS WHEN THE VEHICLE WAS FIRST SOLD, AND IN NO WAY SHOULD BENEFIT FROM THE DEFECTIVE HARNESS BY BEING ALLOWED TO PROFIT FROM SALES OF OTHER COMPONENTS NEEDING REPLACEMENT THAT THE HARNESS SUBSEQUENTLY FOULED. CURRENTLY, I AM AT A STANDSTILL AS THE UNFAIR LIST PRICING FOR THESE FOUR PARTS THAT COULD FIT INTO A LUNCH PAIL, EXCEED THE VALUE OF THE VEHICLE AS A WHOLE. I AM WRITING TO REQUEST THAT THIS ISSUE BE OFFICIALLY INVESTIGATED SO THAT I, AND THE MANY OTHERS IN MY POSITION, CAN BE PROPERLY REMEDIED. THANK YOU IN ADVANCE FOR YOUR CONSIDERATION IN THIS MATTER. *JB

NHTSA ID
10179001
Incident
Jan 9, 2007

Compare model years

Complaint and recall counts across every year of this model

Mercedes-Benz 600 by model year
YearComplaintsRecallsInvestigationsIssue Index
2001801
1997200
1995700
1994Viewing810
1993610
1992800
1967010
1966010
1965010
1964010

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.