NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
14 reportsClear category filter125,000 miles · Feb 27, 2017
Electrical System
TL* THE CONTACT OWNS A 1999 MERCEDES-BENZ SLK230. WHILE DRIVING 70 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT COASTED THE VEHICLE TO THE SIDE OF THE ROAD. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AFTER A FEW MINUTES AND CONTINUED DRIVING. THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRE…
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TL* THE CONTACT OWNS A 1999 MERCEDES-BENZ SLK230. WHILE DRIVING 70 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT COASTED THE VEHICLE TO THE SIDE OF THE ROAD. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AFTER A FEW MINUTES AND CONTINUED DRIVING. THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 125,000. THE VIN WAS NOT AVAILABLE.
NHTSA ODI #10957410
Mileage unknown · Mar 2, 2010
Electrical System
HELLO, THIS IS A PRE-EMPTIVE REPORT OF A PROBLEM WITH A COMPONENT IN 1998-2000 MERCEDES-BENZ SLK 230 ROADSTERS. THE FAILURE OF THIS COMPONENT HAS MANY SYMPTOMS BUT ONE SERIOUS SYMPTOM IS COMPLETE LOSS OF POWER AT HIGHWAY SPEEDS WHICH CAN BE DANGEROUS. I AM HOPING THAT YOU DON'T ACTUALLY HAVE TO WAIT FOR CRASHES AND DEATHS BEFORE…
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HELLO, THIS IS A PRE-EMPTIVE REPORT OF A PROBLEM WITH A COMPONENT IN 1998-2000 MERCEDES-BENZ SLK 230 ROADSTERS. THE FAILURE OF THIS COMPONENT HAS MANY SYMPTOMS BUT ONE SERIOUS SYMPTOM IS COMPLETE LOSS OF POWER AT HIGHWAY SPEEDS WHICH CAN BE DANGEROUS. I AM HOPING THAT YOU DON'T ACTUALLY HAVE TO WAIT FOR CRASHES AND DEATHS BEFORE YOU INVESTIGATE. I ASK THAT YOU CONSIDER THE DOCUMENTED PROBLEM HERE AND SEE THE POTENTIAL FOR A SERIOUS SAFETY ISSUE AND ASK THE MANUFACTURER TO ADDRESS IT. THE PROBLEM ARISES FROM A POOR DESIGN/MANUFACTURING OF SOLDERING ON A K40 RELAY MODULE WHICH IS AN ELECTRONIC COMPONENT AND PART OF THE ELECTRONICS OF THE CAR THAT CONTROLS THE ENGINE OPERATION. CERTAIN SOLDERED POINTS HAVE A TENDENCY TO GET CORRODED/BURNT OUT OVER TIME THAT AFFECTS THE ENGINE OPERATIONS. THE THREE PICTURES BELOW SHOW THE AFFECTED PART, THE PCB INSIDE AND A CLOSEUP OF THE SOLDERED JOINTS THAT SHOW THE PROBLEM. HTTP://WWW.OPENPRESENCE.ORG/SLK/K40-1.JPG HTTP://WWW.OPENPRESENCE.ORG/SLK/K40-2.JPG HTTP://WWW.OPENPRESENCE.ORG/SLK/K40-3.JPG THE MANUFACTURER HAS NOT ACKNOWLEDGED THIS PROBLEM AND WHILE THE OED THROWS UP REPEATABLE CODES ONCE THIS PART STARTS TO DETERIORATE - P1420, P1236, P1235, AND P1525, THE MB DEALER SERVICE CENTERS HAVE NOT BEEN TOLD ABOUT THESE CODES AND THEY TELL CUSTOMERS THAT IT IS UNDEFINED AND PROBABLY DUE TO LOW BATTER VOLTAGE AND SEND THEM WITH THIS PROBLEM STILL THERE UNTIL THE PROBLEM GETS BIG. IF THE CUSTOMER IS LUCKY, THEN IT JUST RESULTS IN A STARTING PROBLEM OR STUMBLING BUT IN SOME CASES CAN RESULT IN LOSS OF POWER WHILE DRIVING. THIS IS THE DANGEROUS PART. THIS PART WAS REDESIGNED IN SLKS FROM 2001 ONWARDS BUT THE MANUFACTURER HAS DONE NOTHING TO FIX THIS PROBLEM IN EARLIER SLKS OR TO EQUIP THEIR AUTHORIZED SERVICE CENTERS TO CATCH THIS PROBLEM BEFORE IT CREATES A SERIOUS SAFETY ISSUE. MY CAR IS CURRENTLY AT THE STAGE OF HAVING BEEN MISDIAGNOSED FOR THE ABOVE CODES. *TR
NHTSA ODI #10315330
107,000 miles · Feb 12, 2008
Electrical SystemPower TrainVisibilityCrashInjury
FOR MY SLK 230 1999 , SPORT PACKAGE, THE RED AND BLACK INTERIORS, FADE AWAY CONSTANTLY , THE RED PAINT ON DASH AND CENTER CONSOLE IS VERY DELICATE, IT WILL SCRATCH ALL THE WAY DEEP ENOUGH TO SEE THE BLACK ORIGINAL COLOR OF THE SAME... CARDAN JOINTS HAVE BEEN CHANGED FOUR TIMES AND KEEPS BREAKING , I HAVE A BRAND NEW ONE IN M…
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FOR MY SLK 230 1999 , SPORT PACKAGE, THE RED AND BLACK INTERIORS, FADE AWAY CONSTANTLY , THE RED PAINT ON DASH AND CENTER CONSOLE IS VERY DELICATE, IT WILL SCRATCH ALL THE WAY DEEP ENOUGH TO SEE THE BLACK ORIGINAL COLOR OF THE SAME... CARDAN JOINTS HAVE BEEN CHANGED FOUR TIMES AND KEEPS BREAKING , I HAVE A BRAND NEW ONE IN MY TRUNK BECAUSE THE 4TH ONE IS ALREADY BROKEN...THEN THE ASR LIGHT TURNS ON" AVOIDING FOR THE ASR SYSTEM TO WORK PROPERLY, CAN BECOME VERY DANGEROUS ON WET ROAD.. I HAD AN ACCIDENT AND ALMOST TOTALED MY SLK230... *TR
NHTSA ODI #10217894
77,000 miles · Feb 2, 2007
Electrical SystemExterior Lighting
TL* - THE CONTACT OWNS A 1999 MERCEDES BENZ SLK230. THE CONTACT RECEIVED A RECALL NOTICE FOR THE EXTERIOR LIGHTING:BRAKE LIGHTS. THE MERCEDES MECHANIC REPLACED THE LIGHTS AT THE CONTACTS HOME. PRIOR TO REPLACING THE LIGHTS PER THE RECALL, THE LIGHTS WERE WORKING. HOWEVER, THE LIGHTS NO LONGER WORKED, AND THE VEHICLE DID NO…
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TL* - THE CONTACT OWNS A 1999 MERCEDES BENZ SLK230. THE CONTACT RECEIVED A RECALL NOTICE FOR THE EXTERIOR LIGHTING:BRAKE LIGHTS. THE MERCEDES MECHANIC REPLACED THE LIGHTS AT THE CONTACTS HOME. PRIOR TO REPLACING THE LIGHTS PER THE RECALL, THE LIGHTS WERE WORKING. HOWEVER, THE LIGHTS NO LONGER WORKED, AND THE VEHICLE DID NOT START. THE DEALER DID NOT WANT TO ADDRESS THE FAILURES AND MAKE THE NECESSARY REPAIRS. THE CONTACT TALKED TO THE MANAGER OF MERCEDES AND HE WAS UNSUCCESSFUL AT GAINING ASSISTANCE. *AK
NHTSA ODI #10181425
26,000 miles · Oct 9, 2005
Electrical System
BRAKE LIGHT FAILURE. I HAVE HAD TO CHANGE THE COMPLETE SOCKET NUMEROUS TIMES. EACH TIME THE SOCKET HAS MELTED. MBUSA TELLS ME THEY KNOW OF THE PROBLEM, BUT DO NOT SEE ANY REASON TO FIX IT. EACH REPAIR RUNS ABOUT $300. I HAVE HAD MINE CHANGED NO LESS THAN 5 TIMES IN THE PAST THREE YEARS. *NM
NHTSA ODI #10139157
82,000 miles · Jun 21, 2005
Electrical System
WHEN IN TRAFFIC AND IDLING, ESPECIALLY SUMMER WEATHER, THE CAR STALLS OCASSIONALLY AND WON'T RESTART. MOST TIMES, WHEN DRIVING TO A DESTINATION, TURNING THE ENGINE OFF, RUNNING AN ERRAND, AND RETURNING TO START THE ENGINE, THE ENGINE WON'T START. THE PANEL LIGHTS ALL LIGHT UP, A CLICK, BUT NO CRANK OR TURNING OVER. AFTER LETTI…
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WHEN IN TRAFFIC AND IDLING, ESPECIALLY SUMMER WEATHER, THE CAR STALLS OCASSIONALLY AND WON'T RESTART. MOST TIMES, WHEN DRIVING TO A DESTINATION, TURNING THE ENGINE OFF, RUNNING AN ERRAND, AND RETURNING TO START THE ENGINE, THE ENGINE WON'T START. THE PANEL LIGHTS ALL LIGHT UP, A CLICK, BUT NO CRANK OR TURNING OVER. AFTER LETTING THE ENGINE COOL DOWN OR SIT FOR A WHILE AND/OR PLAYING W/ THE KEY / IGNITION, THE ENGINE EVENTUALLY TURNS OVER. I'VE SPENT NEARLY $3,000 IN REPAIRS AND THE DEALER CANNOT ISOLATE THE PROBLEM. EVERYTHING HAS BEEN REPLACED EXCEPT FOR THE STARTER AND ELECTRONIC IGNITION MODULE (IF ONE EXISTS). I'M EXTREMELY FRUSTRATED. THE CAR HAS STALLED IN TRAFFIC NUMEROUS TIMES CAUSING TRAFFIC JAMS IN MANHATTAN, THE LINCOLN TUNNEL, AND I CAN'T TELL YOU THE NUMBER OF TIMES I RECEIVE NEGATIVE COMMENTS RE MERCEDES BENZ SUPPOSING TO BE A RELIABLE EXPENSIVE CAR. THIS IS MY 5TH MERCEDES, AND I'M ABOUT TO GIVE UP PERMANENTLY. IN THE LAST 3 YEARS I HAVE SPENT ALMOST $9,000 SERVICE AND REPAIRS AND AM FED UP AND FEEL AS IF I'M BEING SUCKED DRY.
NHTSA ODI #10126138
27,000 miles · Dec 29, 2004
Electrical System
1999 MB SLK230 - TAILLIGHT ASSEMBLY SHORTS OUT AND BRAKE LIGHT FAILS. THIS HAS HAPPENED 5 TIMES, THE MOST RECENT INVOLVING BOTH TAILLIGHTS AT THE SAME TIME! THEY HAVE NOT FIXED THE PROBLEM IN THE DEFECTIVE PART NOW IN 5 YEARS. THEY KEEP REPLACING A DEFECTIVE PART WITH A DEFECTIVE PART! *NM
NHTSA ODI #10104731
19,000 miles · Feb 27, 2004
Electrical SystemExterior LightingVisibility
REARVIEW MIRROR HAS FOG INSIDE THE GLASS,MAKING IT IMPOSSIBLE TO SEE OUT OF IT. BRAKE LIGHTS AND HEADLIGHTS CONTINUE TO FAIL. ALSO, DASH LIGHTS FAILED. *AK
NHTSA ODI #10059960
65,000 miles · Oct 12, 2003
Electrical SystemFire
WHEN THE VEHICLE WAS STARTED THE DASHBOARD CAUGHT ON FIRE. THE FIRE DEPARTMENT DETERMINED THAT THE FIRE WAS STARTED BY AN ELECTRICAL SHORT UNDER THE DASH. THE VEHICLE COULD NOT BE DRIVEN. *AK *SCC *NLM
NHTSA ODI #10034220
56,000 miles · Sep 15, 2003
Electrical System
I'VE HAD A DOZEN BULBS/FUSES BLOW DURING THE LIFE OF THIS VEHICLE. I'VE OWNED OTHER VEHICLES THAT NEVER BLEW A SINGLE BULB OR FUSE OVER THEIR LIFETIME. I JUST WONDER IF THIS IS A WAY FOR MERCEDES BENZ TO INCREASE SERVICE REVENUES. THEY WANT OVER $100 TO REPLACE EACH BULB.
NHTSA ODI #10038923
NHTSA investigations
2PE05051 · Brake Lamp Failure
Opened Sep 22, 2005 · Closed Dec 2, 2005
Status: closed (inferred from source dates) · Exterior Lighting:brake Lights
IN ITS LETTER DATED OCTOBER 28, 2005, MERCEDES-BENZ USA STATED THAT IT WOULD CONDUCT A SAFETY RECALL TO REMEDY DEFECTIVE BRAKE LAMP ASSEMBLIES IN MODEL YEAR 1998 THROUGH 2004 MERCEDES BENZ SLK VEHICLES.THE BASE OF THE BRAKE LAMP SOCKET CAN BE SUBJECT TO THERMAL DEFORMATION OVER TIME.THIS DEFORMATION CAN CAUSE MOVEMENT IN THE SOCKET-TO-BULB CONNECTION, WHICH MAY LEAD TO A LOOSENING OF THE ELECTRICAL CONTACTS IN THE SOCKET, AND FAILURE OF THE BULB TO ILLUMINATE.ALL REAR LAMP MODULES (WHICH CONTAIN BRAKE, TURN SIGNAL, TAIL AND BACKUP LAMPS) WILL BE REPLACED WITH REDESIGNED REAR LAMP MODULES WITH A MORE HEAT RESISTANT MATERIAL AND ENHANCED SOCKET HOLDER DESIGN TO WITHSTAND THE HEAT INSIDE THE REAR LAMP MODULE.SEE NHTSA RECALL NO. 05V505 FOR MORE INFORMATION.
PE99055 · Refueling Spit Back
Opened Aug 30, 1999 · Closed Nov 17, 1999
Status: closed (inferred from source dates) · Vehicle Speed Control:linkages
Two owners of the subject vehicles have had trouble refueling the vehicle due to excessive click-offs and spit-backs.Both owners have reported being completel soaked when gasoline sprayed from the tank.