RoadVitals

2016 Smart Fortwo Problems

Owner-reported complaints filed with NHTSA, grouped by component

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.
21
Latest Mar 9, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
12
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.
7

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2016 Smart Fortwo, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

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

Reports by component

Ranked by how many owner reports name each component category

  • Engine925.0%
  • Fuel system719.4%
  • Electrical513.9%
  • Brakes411.1%
  • Visibility25.6%
  • Steering25.6%
  • Body & structure25.6%
  • Other / unspecified12.8%
  • Powertrain (other)12.8%
  • Suspension12.8%
  • Driver assistance12.8%
  • Heating & air conditioning12.8%

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

Each component in detail

What the reports in each category say, in the owners' own words

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

9
reports

From owner reports, verbatim

I have had it for 6 years. And it has been in for repair, at least 7 times in those somewhere around one time per year. Sometimes twice. All for heating 3 times same piece not sure what to do but it always has to do with no heat to car or overheating my insurance through carmax bout to end gonna cost me alot to keep it even though I love the car seems like a massive problem that mercedes should do something about I've called and got tge run a round

NHTSA ID 11722865 · filed Mar 9, 2026

Car shuts down while driving. This happens usually after quick stops or sudden starts like at a red light or when a car suddenly stops on front of me. I have had this issue happen to me several times. I have tried contacting Mercedes-Benz and the dealership where I bought tge car but they do nothing. I need help getting this issue repaired.

NHTSA ID 11598820 · filed Jul 4, 2024
All 9 reports naming engine

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

7
reports

From owner reports, verbatim

Car shuts down while driving. This happens usually after quick stops or sudden starts like at a red light or when a car suddenly stops on front of me. I have had this issue happen to me several times. I have tried contacting Mercedes-Benz and the dealership where I bought tge car but they do nothing. I need help getting this issue repaired.

NHTSA ID 11598820 · filed Jul 4, 2024

Since purchasing the car the power steering has been bad. The dealership where I purchased the car and Mercedes refused to fix the issue. There is electrical issues and the gas tank gauge and gas tank have been replaced 3 times. Please do not purchase a Smart Car thecmakers do not stand behind their product. I took it to Mercedes Hampton VA Auto Mall and they are so rude. I have almost died 4 times due to bot bring able to turn steering wheel.

NHTSA ID 11457487 · filed Mar 20, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

5
reports

From owner reports, verbatim

Car shuts down while driving. This happens usually after quick stops or sudden starts like at a red light or when a car suddenly stops on front of me. I have had this issue happen to me several times. I have tried contacting Mercedes-Benz and the dealership where I bought tge car but they do nothing. I need help getting this issue repaired.

NHTSA ID 11598820 · filed Jul 4, 2024

Since I purchased the car from Hampton Auto Mall 757 865 8000 there has been an issue with the steering, brakes, gas system, fuel gauge etc.. The dealership or Mercedes refuses to fix the problem since I purchased it in 2016. I have almost died due to steering problems and gas tank. Please get a mechanic to check the steering and for small tears in your gas tank on Smarts. The dealership I bought my car from refuses to fix issue because of lemon laws the Service Advisor told me so.

NHTSA ID 11457491 · filed Mar 20, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

4
reports

From owner reports, verbatim

Three weeks after got the car from carmax check engine light went on and the after a smell of burning oil every time after driving somewhere. Cruise control failure about a month and half after getting the car, spring shocks in bad condition. Front windshield replaced looks like by the writing on the upper corner driver side (pieces of glass found on the car). Cargo cover missing and no mats.

NHTSA ID 11448747 · filed Jan 25, 2022

TL* THE CONTACT OWNED A 2016 SMART FORTWO. THE CONTACT STATED THAT WHILE DRIVING AT 25 MPH AND UNCERTAIN IF WHETHER HE DEPRESSED THE ACCELERATOR PEDAL OR THE BRAKE PEDAL; THE VEHICLE ACCELERATED OFF THE ROAD AND HIT A TREE. THE AIR BAGS DEPLOYED UPON IMPACT. THE CONTACT SUSTAINED MINOR BRUISING AT A RESULT OF THE ACCIDENT BUT DID NOT SEEK MEDICAL TREATMENT. A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TOTALED AND REMAINED AT THE SCENE OF ACCIDENT. THE DEALER NOR THE MANUFACTURER NOR THE DEALER HAD YET TO BE NOTIFIED OF THE FAILURE. THE VEHICLE HAD YET TO BE TOWED FROM THE SCENE OF THE ACCIDENT. THE POSSIBLE FAILURE MILEAGE WAS 50,000.

NHTSA ID 11383048 · filed Dec 11, 2020

Too few reports in this category for a page of its own — they appear in the full complaint list.

Visibility

Reports naming windshields, glass, wipers, defrosters and mirrors.

2
reports

From owner reports, verbatim

Three weeks after got the car from carmax check engine light went on and the after a smell of burning oil every time after driving somewhere. Cruise control failure about a month and half after getting the car, spring shocks in bad condition. Front windshield replaced looks like by the writing on the upper corner driver side (pieces of glass found on the car). Cargo cover missing and no mats.

NHTSA ID 11448747 · filed Jan 25, 2022

TL* THE CONTACT WAS LEASING A 2016 SMART FORTWO. WHILE DRIVING VARIOUS SPEEDS, THE AIR CONDITIONER FAILED TO FUNCTION AND HOT AIR BLEW FROM THE VENTS. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 13,333.

NHTSA ID 11100436 · filed Jun 7, 2018

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

2
reports

From owner reports, verbatim

Since I purchased the car from Hampton Auto Mall 757 865 8000 there has been an issue with the steering, brakes, gas system, fuel gauge etc.. The dealership or Mercedes refuses to fix the problem since I purchased it in 2016. I have almost died due to steering problems and gas tank. Please get a mechanic to check the steering and for small tears in your gas tank on Smarts. The dealership I bought my car from refuses to fix issue because of lemon laws the Service Advisor told me so.

NHTSA ID 11457491 · filed Mar 20, 2022

Since purchasing the car the power steering has been bad. The dealership where I purchased the car and Mercedes refused to fix the issue. There is electrical issues and the gas tank gauge and gas tank have been replaced 3 times. Please do not purchase a Smart Car thecmakers do not stand behind their product. I took it to Mercedes Hampton VA Auto Mall and they are so rude. I have almost died 4 times due to bot bring able to turn steering wheel.

NHTSA ID 11457487 · filed Mar 20, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

2
reports

From owner reports, verbatim

The roof detached on the highway. It was just replaced by Mercedes Benz in Manhattan and a couple of weeks later when it went on a highway, the roof flew up and I had to hold on to it for dear life while I was searching for a shoulder since they don’t have them everywhere on the East Coast. I didn’t want anyone behind me to be killed. I didn’t want myself to be killed either. It’s very hard to drive with wind and a roof coming against you. As soon as I found a shoulder I bumped a street sign in a bush because it was so narrow and then the tow truck driver had to come and bring a ratchet straps to secure my roof to the car. He had to block traffic with his tow truck so we didn’t get hit and die. Then I had to drive five hours with my roof detached from Washington DC to New York because it was Labor Day and they were no mechanics open. It was TERRIFYING. I have nightmares. I had lives on my hands and my own. If it had flown off completely, which it would have if I didn’t pull it down as I pulled over, someone would have been killed and I could have crashed driving and holding my roof down at the same time.

NHTSA ID 11432522 · filed Sep 10, 2021

MY 2016 SMART CAR AT ONLY 51000 MILES HAD TRANSMISSION FAILURE WHILE DRIVING DOWN FREEWAY ALMOST RESULTING IN CRASH. MY CAR WENT FROM 65 MILES A HOUR, THEN WARNING LIGHT SAID TRANSMISSION FAILURE AND CAR WAS UNABLE TO EXCEL RATE OR BREAK, THE EMERGENCY BREAK WAS THE ONLY THING THAT SAVED ME. MERCEDES DIAGNOSED A WIG WAS ABLE TO FLY UP UNDER CAR AND GET WRAPPED AROUND AXELS, TRANSMISSION, AND BREAK BELTS. THE CAR WAS TOTALED FROM A WIG. THIS IS UNACCEPTABLE THAT THE UNDERNEATH IS LEFT VULNERABLE TO A OBJECT BEING ABLE TO CAUSE SO MUCH DAMAGE, THAT COULD HAVE EASILY RESULTED IN A FATAL CAR CRASH. THIS HAPPENED ON HWY 59 SOUTH HOUSTON, WHILE DRIVING.

NHTSA ID 11256423 · filed Sep 18, 2019

Too few reports in this category for a page of its own — they appear in the full complaint list.

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

1
report

From owner reports, verbatim

THE BRAKES ARE SLIPPING BAD. THEY HAVE BEEN SLIPPING SINCE I BOUGHT THE VEHICLE IN 2016. THE GAS TANK IS LEAKING AND HAS LEAKED INTO THE CAB OF THE CAR. THE GAS TANK HAS BEEN REPLACED 3 TIMES.

NHTSA ID 11353926 · filed Sep 9, 2020

Too few reports in this category for a page of its own — they appear in the full complaint list.

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

1
report

From owner reports, verbatim

ON STEEP UPHILLS AND WHEN YOU HAVE COME TO A STOP BECAUSE OF A RED LIGHT OR A STOP SIGN, THE ENGINE SEEMS TO BE TOO WEAK TO PUSH THE TRANSMISSION FORWARD AND ACTUALLY THE CAR MY ROLL BACK AND BRAKES GO IN A LOCK MODE WHICH CREATES A BIG SAFETY ISSUE.

NHTSA ID 10885818 · filed Jul 19, 2016

Too few reports in this category for a page of its own — they appear in the full complaint list.

Suspension

Reports naming suspension components — springs, struts, shocks, control arms and related hardware.

1
report

From owner reports, verbatim

Since purchasing the car the power steering has been bad. The dealership where I purchased the car and Mercedes refused to fix the issue. There is electrical issues and the gas tank gauge and gas tank have been replaced 3 times. Please do not purchase a Smart Car thecmakers do not stand behind their product. I took it to Mercedes Hampton VA Auto Mall and they are so rude. I have almost died 4 times due to bot bring able to turn steering wheel.

NHTSA ID 11457487 · filed Mar 20, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

1
report

From owner reports, verbatim

The car just shuts off while I am driving. I can tell now when it is about to shut off. I have had this problem since I purchased the car in 2016. I have taken the car to the dealership and called Mercedes Benz several times and they will not do anything. I will die because the car is getting worse and shuts off more frequently now. Can you get Mercedes Benz to help me? They told me that they don't care if I die due to a bad product they sold me. Please help. Please, I am begging you I do not want to hurt someone else due to this bad car.

NHTSA ID 11517032 · filed Apr 14, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Heating & air conditioning

Reports naming the heating, ventilation and air-conditioning system.

1
report

From owner reports, verbatim

TL* THE CONTACT WAS LEASING A 2016 SMART FORTWO. WHILE DRIVING VARIOUS SPEEDS, THE AIR CONDITIONER FAILED TO FUNCTION AND HOT AIR BLEW FROM THE VENTS. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 13,333.

NHTSA ID 11100436 · filed Jun 7, 2018

Too few reports in this category for a page of its own — they appear in the full complaint list.

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.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .