Power Train. Review the 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Structure. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine And Engine Cooling. Review the 2 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 reports1 fire reports1 injury reports

Structure complaints

4 reports

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2,000 miles · Jan 19, 2011

Structure

THE PLASTIC ROOF IN MY 2009 SMART FORTWO HAD BEEN CRACKING SUBSTANTIALLY FROM EITHER HEAT OR CLEANING CHEMICALS. *TR

NHTSA ODI #10377889

5,300 miles · Aug 26, 2010

Structure

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CRAZING AND FAILURE OF MAKROLON (POLYCARBONATE) ROOF ON ALL SMART FOR TWO COUPES FROM 2008 TO PRESENT. POLYCARBONATE (PC) MATERIAL THE TRANSPARENT ROOF PANEL IS MADE FROM DISINTEGRATES FROM UV SUNLIGHT OR HEAT BEYOND ITS 150F RATING EXACERBATED BY SMART'S SUNSHADE INSIDE THE CAR. PC IS NOT RESISTANT TO OZONE AND OTHER CHEMICALS LISTED HERE: HTTP://WWW.SHEFFIELDPLASTICS.COM/WEB_DOCS/MAKROLON%20CHEMICAL%20RESISTANCE.PDF MANY OF WHICH ARE IN THE AIR AND IN CLEANING SUPPLIES. FROM THIS MFG WEB..."EXPOSING MAKROLON SHEET TO REPEATED STEAM CLEANING OR DISH WASHING CAN CREATE HYDRAULIC CRAZING. THE RESULT CAN BE A CLOUDING OF THE SURFACE AND ULTIMATELY A LOSS OF PHYSICAL STRENGTH PROPERTIES." TEMPERATURES MEASURED BETWEEN SUNSHADE AND MAKROLON ROOF PANEL IN SC PARKING LOT FAR EXCEEDS 150F SPEC, CAUSING THE OBSERVED FAILURES. THESE FAILURES WILL, EVENTUALLY, CONSUME THE PLASTIC ROOF WHICH WILL FALL ON OCCUPANTS OR EXPLODE OUTWARDS ONTO FOLLOWING TRAFFIC WHEN, NOT IF, THE PLASTIC FINALLY FAILS, STRUCTURALLY. THE FAILURE IS SLOW AND TAKES A YEAR OR MORE TO MATERIALIZE. AS THIS MODEL IS ONLY 2 YEARS OLD, JUST OUT OF WARRANTY, SMART HAS DONE NOTHING TO RECALL/REPLACE THE DEFECTIVE MATERIAL, STONEWALLING THE CUSTOMERS TO THE PROBLEM. BEFORE SOMEONE GETS HURT, OR THIS PANEL FAILS AND FALLS ON THE CHILDREN OR CAUSES PANIC TO THE DRIVER, THIS ROOF PANEL SHOULD BE RECALLED, EVEN OUT OF WARRANTY BECAUSE IT TAKES MORE THAN THE 2-YEAR WARRANTY PERIOD FOR THE FAILURE TO OCCUR, BY FORCE OF GOVERNMENT IF NECESSARY. SMART REPLACES ONE DEFECTIVE PANEL WITH ANOTHER UNDER WARRANTY, WHICH DOES NOT SOLVE THE PROBLEM OF DEFECTIVE MATERIAL, SO THE PROBLEM REPEATS. A FORCED RECALL TO REPLACE WITH OTHER MATERIAL MORE REALISTIC TO INTENSE UV SUNSHINE IN A HOT PARKING LOT IS WARRANTED BECAUSE OF THE COMPANY'S ATTITUDE TOWARDS PROPER REPLACEMENT WITH A DIFFERENT MATERIAL. THANK YOU FOR YOUR CONSIDERATION IN THIS MATTER. *TR

NHTSA ODI #10352045

11,400 miles · Jan 11, 2010

Structure

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THE SERVICE FLAP (HOOD) ON MY 2009 SMART CAR HAS DETACHED TWICE. IN EACH INCIDENT THE VEHICLE WAS BEING TOWED BEHIND A MOTORHOME. AFTER THE FIRST INCIDENT THE DEALERSHIP SENT ME A NEW HOOD AND I INSTALLED IT MYSELF AS THERE WAS NO DEALER WITHIN 1,500 MILES OF MY LOCATION. AFTER THE SECOND TIME AND WITH MORE DAMAGE DONE SMARTUSA IS CLAIMING THAT THE HOOD WAS NOT PROPERLY SECURED BY ME CAUSING IT TO COME OFF. THIS TIME EXTENSIVE DAMAGE OCCURRED TO THE VEHICLE. I WAS ALSO INFORMED THAT THIS HAS HAPPENED BEFORE AND THAT IN ALL INSTANCES SMARTUSA FAULTS THE OWNERS FOR NOT PROPERLY REPLACING THE HOOD. I AM CONCERNED THAT IF THIS IS A CONTINUING ISSUE AND ALSO HAPPENS WHEN THEN CAR IS NOT BEING TOWED THAT A HOOD FLYING OFF COULD CAUSE A SEVERE SAFETY HAZARD. THE HOOD REMAINS ATTACHED TO THE VEHICLE BY A STRAP AND WILL FLAP IN FRONT OF THE DRIVER UNTIL SPEED IS REDUCED. THIS COULD CAUSE PANIC AND AN ACCIDENT COULD RESULT. *TR

NHTSA ODI #10298992

11,500 miles · Dec 31, 2009

Structure

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I HAVE OWNED MY 2009 SMART FORTWO SINCE DECEMBER 2008 AND HAVE HAD THIS PROBLEM OCCUR TWICE. WHILE TOWING THE SMART ON A TRAILER BEHIND MY MOTORHOME ONE OF THE PINS HOLDING THE HOOD BROKE CAUSING THE HOOD TO COME OFF. THE HOOD IS HELD ON BY TWO PLASTIC PINS AND A CLOTH STRAP. THE STRAP RESTRAINED THE HOOD CAUSING IT TO FLAP AROUND THE FRONT OF THE CAR. THIS CAUSED DAMAGE TO ALL THE FRONT PANELS AND THE WINDSHIELD. LUCKILY I WAS NOT DRIVING THE CAR AT THE TIME. IF I HAD BEEN DRIVING WHEN THIS HAPPENED IT COULD HAVE CAUSED A MAJOR ACCIDENT. *TR

NHTSA ODI #10297719

Official recalls

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

EA17003 · 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.