NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
20 reportsClear category filter29,000 miles · Apr 14, 2015
Electrical System
TL* THE CONTACT OWNS A 2008 SMART FORTWO. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING. ALSO, WHILE ATTEMPTING TO REVERSE, THE GEAR SHIFTER FAILED TO REMAIN IN THE CORRECT GEAR. THE VEHICLE WAS TAKEN TO A DEALER WHO DIAGNOSED THERE WAS AN ELECTRICAL FAILURE. NO REPAIRS WERE MADE TO THE VEHICLE. THE MANUFACTURER WA…
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TL* THE CONTACT OWNS A 2008 SMART FORTWO. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING. ALSO, WHILE ATTEMPTING TO REVERSE, THE GEAR SHIFTER FAILED TO REMAIN IN THE CORRECT GEAR. THE VEHICLE WAS TAKEN TO A DEALER WHO DIAGNOSED THERE WAS AN ELECTRICAL FAILURE. NO REPAIRS WERE MADE TO THE VEHICLE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 29,000.
NHTSA ODI #10705574
28,000 miles · Nov 10, 2014
Electrical SystemPower Train
FAILURE TO SHIFT OUT OF PARK INTO REVERSE. GEARSHIFT MOVES BUT GEAR DISPLAY GOES BLANK AND CHIME SOUNDS. SOMETIMES IT WILL GO INTO DRIVE. IT MAY BE A SOLENOID PROBLEM. VERY FRUSTRATING AND IT SEEMS TO BE GETTING WORSE OVER TIME. I NOW HAVE 38,000 MILES ON THE CAR. THIS ISSUE NEEDS TO BE LOOKED INTO. I EXPECT BETTER OUT OF DAMLIE…
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FAILURE TO SHIFT OUT OF PARK INTO REVERSE. GEARSHIFT MOVES BUT GEAR DISPLAY GOES BLANK AND CHIME SOUNDS. SOMETIMES IT WILL GO INTO DRIVE. IT MAY BE A SOLENOID PROBLEM. VERY FRUSTRATING AND IT SEEMS TO BE GETTING WORSE OVER TIME. I NOW HAVE 38,000 MILES ON THE CAR. THIS ISSUE NEEDS TO BE LOOKED INTO. I EXPECT BETTER OUT OF DAMLIER BENZ. *TR
NHTSA ODI #10653909
82,500 miles · Apr 6, 2014
Electrical SystemPower Train
WHILE DRIVING AT NIGHT AT ABOUT 45 MILES PER HOUR, I WAS SHIFTING INTO FIFTH GEAR AND THE CAR JUST WENT BLANK. THE LIGHTS WENT OUT AND ALL NOISE CEASED TO EXIST. AT FIRST IT WAS A BIT OF A SHOCK, SO I IMMEDIATELY PULLED OFF OF THE ROAD ONTO THE DIRT. LUCKILY THERE WERE NO CARS AROUND AS THE SUDDEN LOSE OF POWER COULD HAVE CAUSED…
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WHILE DRIVING AT NIGHT AT ABOUT 45 MILES PER HOUR, I WAS SHIFTING INTO FIFTH GEAR AND THE CAR JUST WENT BLANK. THE LIGHTS WENT OUT AND ALL NOISE CEASED TO EXIST. AT FIRST IT WAS A BIT OF A SHOCK, SO I IMMEDIATELY PULLED OFF OF THE ROAD ONTO THE DIRT. LUCKILY THERE WERE NO CARS AROUND AS THE SUDDEN LOSE OF POWER COULD HAVE CAUSED SOMEONE TO RUN INTO ME, AS I HAD NO LIGHTS. AFTER LOOKING AROUND THE INSDE OF THE CAR I NOTICED THAT THE KEY WAS IN THE OFF POSITION. THE KEY ON THIS CAR IS IN THE MIDDLE CONSOLE, RIGHT NEXT TO THE GEAR SHIFT SELECTOR. I DETERMINED THAT UPON SHIFTING MY JACKET SLEEVE HAD BRUSHED AGAINST THE KEY, AND BECUASE THE KEY IS SO EASY TO TURN OFF FROM THE ON POSITION, THE KEY JUST TURNED OFF WHILE DRIVING. THIS WAS THE FIRST OCCURRANCE OF THIS, AS IT HAPPEND ONE MORE TIME. I HAVE HAD TO REMEMBER NOT TO LEAVE MY HAND DOWN BY THE SHIFT LEVER, IN FEAR OF TURNING OFF THE KEY WITHOUT KNOWING IT. *TR
NHTSA ODI #10577754
25,000 miles · Sep 19, 2012
Electrical SystemPower Train
ATTEMPTING TO LEAVING STORE PARKING LOT, ENTERED CAR, STARTED ENGINE, MOVED GEAR SHIFT TO "R" BUT TRANSMISSION DOES NOT ENGAGE AND THE "R" DOES NOT APPEAR IN DASHBOARD DISPLAY. TRY MOVING SHIFTER TO "D" BUT STILL NO TRANSMISSION ENGAGEMENT OR DASH DISPLAY.. SHIFT BACK TO "P" THAT NOW DISPLAYS ON DASH. TRY "R" AGAIN, NOTHING. AF…
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ATTEMPTING TO LEAVING STORE PARKING LOT, ENTERED CAR, STARTED ENGINE, MOVED GEAR SHIFT TO "R" BUT TRANSMISSION DOES NOT ENGAGE AND THE "R" DOES NOT APPEAR IN DASHBOARD DISPLAY. TRY MOVING SHIFTER TO "D" BUT STILL NO TRANSMISSION ENGAGEMENT OR DASH DISPLAY.. SHIFT BACK TO "P" THAT NOW DISPLAYS ON DASH. TRY "R" AGAIN, NOTHING. AFTER SEVERAL ATTEMPTS TO ENGAGE TRANSMISSION FAIL, TURN ENGINE OFF, AND RESTART. NOW IT SEEMS TO BE WORKING CORRECTLY. THIS TYPE OF OCCURRENCE HAS HAPPENED MANY, MANY TIMES OVER THE LAST YEAR. CAN'T IDENTIFY WHAT MIGHT BE CAUSING THIS ISSUE, I.E. COLD ENGINE, HOT ENGINE, RAIN, HOT SUMMER DAY, COLD WINTER, IT HAPPENS UNDER ANY UNEXPECTED SITUATION.
NHTSA ODI #10477561
66,680 miles · Jan 27, 2011
Electrical SystemVisibility
HEATER BLOWER MOTOR FAILURE, RANDOM OCCURRENCE OF FAILURE TO OPERATE HEAT OR DEFROST, FOGGING/FREEZING WINDOWS. *TR
NHTSA ODI #10379313
13,000 miles · Nov 16, 2010
Electrical System
TL*THE CONTACT OWNS A 2008 SMART FORTWO 451 COUPE. WHEN THE VEHICLE STOPPED THE AIR BAG LIGHT CAME ON AND WOULD NOT SHUT OFF. THE VEHICLE WAS TAKEN TO THE DEALER WHO RESET THE COMPUTER FOR THE DRIVER'S SIDE SEAT BELT CONNECTION BECAUSE IT WAS LOOSE. THREE MONTHS LATER THAT THE FAILURE RECURRED. THE VEHICLE WAS NOT TAKEN TO THE D…
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TL*THE CONTACT OWNS A 2008 SMART FORTWO 451 COUPE. WHEN THE VEHICLE STOPPED THE AIR BAG LIGHT CAME ON AND WOULD NOT SHUT OFF. THE VEHICLE WAS TAKEN TO THE DEALER WHO RESET THE COMPUTER FOR THE DRIVER'S SIDE SEAT BELT CONNECTION BECAUSE IT WAS LOOSE. THREE MONTHS LATER THAT THE FAILURE RECURRED. THE VEHICLE WAS NOT TAKEN TO THE DEALER BECAUSE HE PAID $150 FOR THE FIRST REPAIR. THE FAILURE MILEAGE WAS 13,000 AND THE CURRENT MILEAGE WAS 13,400.
NHTSA ODI #10366433
23,500 miles · Sep 30, 2010
Electrical SystemEngine And Engine Cooling
ENGINE STOPS AFTER MAKING A HARSH LEFT TURN- SUCH AS IN A U-TURN. CHECKED FOR PHYSICAL TOUCHING OF INSERTED KEY AND THAT IS NOT THE CASE. MOTOR STARTS IMMEDIATELY WHEN PLACED IN NEUTRAL AND IGNITION KEY IS TURNED. *TR
NHTSA ODI #10358382
22,200 miles · Jun 22, 2010
Electrical System
WHEN I DRIVE BY AN INTERSECTION WHERE THERE ARE A LOT OF RADIO, SATELLITE AND CELL PHONE TOWERS, THE STABILITY CONTROL LIGHT COMES ON AND THEN MY CAR IS IMMOBILIZED. BY THAT I MEAN THAT THE CAR IS IN "D" BUT WON'T MOVE. I PUSH OR COAST TO THE SIDE OF THE ROAD AND TURN THE CAR "OFF." I WAIT A COUPLE OF MINUTES AND RESTART. THE WA…
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WHEN I DRIVE BY AN INTERSECTION WHERE THERE ARE A LOT OF RADIO, SATELLITE AND CELL PHONE TOWERS, THE STABILITY CONTROL LIGHT COMES ON AND THEN MY CAR IS IMMOBILIZED. BY THAT I MEAN THAT THE CAR IS IN "D" BUT WON'T MOVE. I PUSH OR COAST TO THE SIDE OF THE ROAD AND TURN THE CAR "OFF." I WAIT A COUPLE OF MINUTES AND RESTART. THE WARNING LIGHTS STAY ON BUT IT WILL ALLOW ME TO DRIVE OFF IN "D." I THEN PARK, DO MY ERRANDS AND COME BACK TO THE CAR. I START IT UP, ALL WARNING LIGHTS STAY OFF AND IT DRIVES NORMALLY. THE SAME THING HAS HAPPENED ON BOTH OCCASIONS WHEN I HAVE DRIVEN BY THIS INTERSECTION (MT. PLEASANT AVENUE AND PROSPECT AVENUE IN WEST ORANGE, NJ.) THE CAR IS A 2008 SMART PASSION COUPE. *TR
NHTSA ODI #10339597
Mileage unknown · Mar 4, 2010
Electrical SystemWheels
2008 SMART WITH UNRESOLVED COMPUTER CONTROL PROBLEMS. *KB THE CONSUMER STATED THE FIRST ISSUE INVOLVED A WARNING CHIME THAT ACTIVATED WHEN THE VEHICLE WAS TURNED OFF. IT HAPPENED UNDER VARIOUS CONDITIONS AND WOULD NOT TURN OFF UNTIL THE VEHICLE WAS TURNED ON AND OFF AGAIN. THE CONSUMER BELIEVED THE PROBLEM WAS A SOFTWARE ISSUE.…
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2008 SMART WITH UNRESOLVED COMPUTER CONTROL PROBLEMS. *KB THE CONSUMER STATED THE FIRST ISSUE INVOLVED A WARNING CHIME THAT ACTIVATED WHEN THE VEHICLE WAS TURNED OFF. IT HAPPENED UNDER VARIOUS CONDITIONS AND WOULD NOT TURN OFF UNTIL THE VEHICLE WAS TURNED ON AND OFF AGAIN. THE CONSUMER BELIEVED THE PROBLEM WAS A SOFTWARE ISSUE. THE CONSUMER SUSPECTED THAT WHEN THE COMPUTER WAS AT A PARTICULAR CYCLE POINT IN ITS SERIES OF SYSTEMS CHECKS, IT WAS WAITING FOR A SIGNAL FROM SOME SENSOR WHICH WAS NOT RECEIVED WHEN THE POWER TO THE PARTICULAR SENSOR WAS SHUT OFF PRIOR TO THE COMPUTER WARNING SYSTEM POWERING OFF. THE SECOND ISSUE INVOLVED THE INTERMITTENT WIPER SYSTEM SOMEWHERE ON THE LINE B38 TO THE SAM CONTROL UNIT. ON VARIOUS OCCASIONS, THE WIPERS WOULD GO THROUGH WHAT APPEARED TO BE A START UP ROUTINE OF 5 RAPID WIPES FOLLOWED BY 3 SLOW WIPES AND THEN RETURN TO OPERATING AS DESIGNED. OCCASIONALLY, THE ISSUE WAS CORRECTED BY TURNING THE WIPERS TO THE OFF POSITION AND BACK TO INTERMITTENT, BUT IT DIDN'T ALWAYS CORRECT THE PROBLEM. THE CONSUMER BELIEVED BOTH OF THE ISSUES WERE A COMPUTER CONTROL ISSUE THAT DID NOT LEAVE ERROR CODES THAT WOULD ALLOW THE DEALER TO IDENTIFY AND CORRECT THE PROBLEM. *JB THE CONSUMER STATED WHILE AT A STOP, THE CLUTCH REMAINED ENGAGED FOR AN UNUSUALLY LONG PERIOD OF TIME BEFORE DISENGAGING AND RELEASING PRESSURE. THE CONSUMER WAS INFORMED IT WAS A NORMAL FUNCTIONALITY OF THE VEHICLE. HOWEVER, WHEN THE SPEED SENSOR WAS REPLACED, THE VEHICLE DISPLAYED SIGNIFICANTLY DIFFERENT CHARACTERISTICS AT STOPS BY DISENGAGING THE CLUTCH IMMEDIATELY AND NOT CONTINUING TO RIDE THE CLUTCH WHILE STOPPED FOR SEVERAL SECONDS BEFORE DISENGAGING. THE CONSUMER BELIEVED THE RIDING BEHAVIOR WAS A RESULT OF THE INITIAL FAILING OF THE SENSOR. ALSO, THE AXLE BOLT THAT SECURED THE HUB FAILED. UPDATED CONSUMER LETTER 04/14/11
NHTSA ODI #10316475
50 miles · Jan 29, 2009
Electrical SystemFuel System, Gasoline
GAS GAUGE DOES NOT REGISTER FULL ON FILL UPS. *TR
NHTSA ODI #10256870
NHTSA investigations
2EA17003 · Engine Compartment Fire
Opened Sep 1, 2017 · Closed Aug 21, 2018
Status: closed (inferred from source dates) · Engine
On April 30, 2018, Mercedes-Benz USA, LLC, (Mercedes-Benz) submitted a Defect Information Report (DIR) to NHTSA regarding a defect that could result in a vehicle fire starting from the engine compartment in 42,781 model year (MY) 2008 and 2009 Smart Fortwo cabrio and coupe vehicles (451 platform).According to Mercedes-Benz?s DIR, ?the rear insulation mat within the engine compartment might deform, deteriorate, loosen and over time, subsequently be able to contact hot components of the exhaust system.This could lead to an ignition of the insulation mat and possible fire in the engine compartment.?The US-specification exhaust system has an external catalytic converter packaged close to the insulation mat, where temperatures in the vicinity of the insulation mat reach high values.Over time, these temperatures can lead to a change in the insulation mat's material characteristics and ultimately allow the material to deform. Depending on the magnitude and the specific location of the deformation, the insulation mat could contact hot components of the exhaust system and ignite.Mercedes-Benz will replace the rear insulation mat on the affected vehicles with the improved mat first implemented in the United States in MY 2010 vehicles.ODI?s analysis of fire incident field data reported to NHTSA and Mercedes-Benz show an increasing trend of non-crash fires in the subject vehicles that begins after 4 years of service and accelerates after 7 years of service.The analysis shows that this trend is driven by fires occurring in the engine compartment.Forensic investigations of fires occurring in the past year identified the insulation mat as a likely or possible cause of most of the fires originating in the engine compartment.This investigation is closed based on Mercedes-Benz insulation mat recall.For more information about field data trends and fire investigations, see the closing resume in the document file for this investigation.
PE16016 · Engine Compartment Fire
Opened Dec 16, 2016 · Closed Nov 20, 2017
Status: closed (inferred from source dates) · Engine
On December 16, 2016, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE16-016 to investigate eight complaints alleging incidents of engine compartment fire while driving or shortly after engine shutdown in model year (MY) 2008 through 2009 Smart Fortwo vehicles.The complaints appeared to indicate an increasing trend, with all eight fires occurring since January 2015.As part of PE16-016, ODI analyzed information related to incidents reported to the Office by consumers, analyzed field data and technical information submitted by Mercedes-Benz USA (Mercedes) in response to the PE16-016 information request letter, and analyzed non-crash vehicle fire claim data provided by the Highway Loss Data Institute (HLDI).To date, ODI's analysis of incidents reported by consumers and provided by Mercedes has identified 27 incidents of open flame fires originating in the engine compartments of the subject vehicles, 14 of which were reported to ODI by Vehicle Owner Questionnaires (VOQs) and 18 involving complaints or field reports to Mercedes (5 of the incidents were reported to both ODI and Mercedes).One incident reported to Mercedes includes an allegation of an injury from smoke inhalation.Nineteen (19) of the incidents occurred since January 2015.Mercedes has only investigated 2 of the 27 fire incidents, and the company was unable to identify a vehicle-based cause for either incident.To further assess incident rates and trends, ODI requested fire claim data for the subject vehicles and eight peer vehicles from the Highway Loss Data Institute (HLDI).HLDI collects insurance claim data from companies representing over 80 percent of the market for private passenger vehicle insurance in the United States.ODI?s analysis of the HLDI data, which covered the period from 2010 through late-2016, found that the MY 2008 Fortwo vehicles had a significantly higher claim frequency than its peers and, similar to ODI?s complaint trend, experienced a sharp increase in claims in 2015.This investigation has been upgraded to an Engineering Analysis (EA17-003) to continue to investigate the high frequency and increasing trend of non-crash engine compartment fire incidents in the subject vehicles.The VOQs associated with the opening of this investigation were:10676359, 10780222, 10790017, 10820891, 10872656, 10944676, 10916505, 10924311, 10924637, 10939504, 10945296, 10993895, 11011100, 11011565.