SMART FORTWO (1998–2019) — Technical Guide, Fault Codes & Maintenance
Built 1998–2019 · all production years covered on this single page
1.0 (71 Hp) Automatic • Petrol (Gasoline)
2019
© Wikimedia Commons CC BY-SA
Every figure on this Smart Fortwo (1998–2019) page is aggregated and cross-checked against more than 6.6 million real workshop operations, NHTSA records and OEM technical sources — and updated continuously. No invented estimates.
The Smart Fortwo (1998–2019) is powered by a 1.0 (71 Hp) Automatic engine. Use the sections below for verified fluids, battery, OEM tyres, the maintenance schedule, recommended parts and the most commonly reported OBD2 fault codes for this vehicle.
Common problems
Common repairs
Fluids & lubricants
Battery
Fault codes (OBD2)
Dashboard lights
Parts comparator
Accessories & tools
Tyres
Recalls & TSB
Complaints
Workshops nearby
COMMON PROBLEMS
Transmission fault signal (TCM)MODERATE
The transmission module detected a fault — check separate transmission codes.
Related codes: P0700
Misfire / Loss of cylinderMODERATE
Rough running, idle vibration, power loss.
Related codes: P0300
Thermostat: coolant temperature lowLOW
Thermostat stuck open — engine does not reach operating temperature.
Related codes: P0128
Battery/system voltage lowLOW
System voltage below 10V — check alternator, battery or wiring.
Related codes: P0562
P0011LOW
Check with an OBD2 scanner.
Related codes: P0011
AVERAGE INDICATIVE COSTS
Prices may vary by area and workshop.
Full service
€ 120 – € 200
Full brake service
€ 180 – € 300
Spark plug replacement
€ 80 – € 140
Electronic diagnosis
€ 40 – € 70
WORKSHOP LABOUR RATES BY COUNTRY
Average independent-workshop hourly labour rates, to estimate repair costs in your country.
🇩🇪Germany€95/h
🇪🇸Spain€55/h
🇫🇷France€75/h
🇮🇹Italy€45/h
🇬🇧UK£80/h
🇺🇸USA$120/h
Reference rate
€45/h
Source: Eurostat 2024
💧 FLUIDS & LUBRICANTS
📋 RECALLS & TSB (6)
NHTSA 18V273000
Engine And Engine Cooling › Exhaust System
Date: 27/04/2018
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2008-2009 smart fortwo cabrio and fortwo coupe vehicles. The rear insulation mat in the engine compartment may deform, deteriorate, and loosen over time, allowing the mat to contact hot exhaust system components.
NHTSA 18V273000
Engine And Engine Cooling › Exhaust System
Date: 27/04/2018
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2008-2009 smart fortwo cabrio and fortwo coupe vehicles. The rear insulation mat in the engine compartment may deform, deteriorate, and loosen over time, allowing the mat to contact hot exhaust system components.
NHTSA 20V107000
Electrical System › 12V/24V/48V Battery
Date: 24/02/2020
Mercedes-Benz USA, LLC. (MBUSA) is recalling one 2019 Smart Fortwo Electric Drive vehicle. A welded joint within the high-voltage battery main cell conductors may detach and interrupt electrical contact, resulting in sudden battery failure. The detached weld may also cause an e…
NHTSA 17V448000
Parking Brake
Date: 16/07/2017
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 smart fortwo vehicles. In these vehicles, the lock nut that secures the parking brake cable to the parking brake lever may loosen over time, resulting in increased parking brake lever travel before the parking brake engage…
NHTSA 17V447000
Steering
Date: 14/07/2017
Mercedes-Benz USA LLC. (MBUSA) is recalling certain 2017 smart fortwo and smart fortwo Cabriolet vehicles. Casting imperfections may result in the failure of the left front axle steering knuckle.
NHTSA 08V390000
Structure › Frame And Members
Date: 07/08/2008
SMART USA IS RECALLING 43 MY 2008 FORTWO 451 VEHICLES. A SINGLE BATCH OF PAINT SENT TO THE COMPANY DID NOT MEET SPECIFICATIONS. A RE-WORK WAS DONE IN THE PLANT USING DIFFERENT FORMULATIONS OF PAINTING MATERIALS. AFTER THE RE-WORK WAS COMPLETED, IT WAS DETERMINED THAT THE C…
COMMON OBD2 CODES TO CHECK
P0420
P0420
Powertrain
P0171
P0171
Powertrain
P0300
P0300
Powertrain
P0128
P0128
Powertrain
P0455
P0455
Powertrain
P0700
P0700
Transmission
P0442
P0442
Powertrain
P0172
P0172
Powertrain
P0401
P0401
Powertrain
All documented fault codes for this vehicle
The most documented diagnostic codes for this model, by system and severity. Tap a code for the full guide.
P0455
powertrain
LOW⏱ 0.62h avgP0442
powertrain
LOW⏱ 0.62h avgP0440
powertrain
LOW⏱ 0.78h avgP0420
powertrain
MEDIUM⏱ 1.24h avgP0300
powertrain
HIGH⏱ 1.22h avgP0172
powertrain
MEDIUM⏱ 1.13h avgP0171
powertrain
MEDIUM⏱ 0.95h avgP0730
transmission
MEDIUM⏱ 1.25h avgP0700
transmission
HIGH⏱ 1.25h avgP0401
powertrain
MEDIUM⏱ 1.25h avgP0011
powertrain
MEDIUM⏱ 5.4h avgU0100
network
HIGHP0562
electrical
MEDIUM⏱ 0.58h avgP0128
powertrain
MEDIUM⏱ 0.88h avg
DASHBOARD WARNING LIGHTS — UNIVERSAL GUIDE
53 warning lights classified by urgency. Appears on your vehicle? Check the urgency level.
Show all dashboard warning lights
🔴 IMMEDIATE STOP — pull over
Oil Pressure WarningEngine
Engine Temperature WarningCooling
Brake System WarningBrakes
Immobilizer / Key FaultSecurity
🟠 WARNING — check soon
Malfunction Indicator Light (MIL) / Check EngineEngine
Diesel Particulate Filter (DPF)Emissions
Battery / Charging SystemElectrical
Low Fuel WarningFuel
ABS WarningBrakes
Brake Pad Wear IndicatorBrakes
Electronic Parking Brake (EPB)Brakes
Power Steering WarningSteering
ESC / Stability Control FaultChassis
Tire Pressure Warning (TPMS)Chassis
Transmission Temperature WarningTransmission
Transmission / Gearbox FaultTransmission
Airbag / SRS WarningActive safety
EGR / Exhaust Gas Recirculation FaultEmissions
Catalytic Converter / Emissions FaultEmissions
AdBlue / DEF Level LowEmissions
Coolant Level LowCooling
Hybrid / EV System WarningHybrid
EV Charge System FaultHybrid
12V Battery (Hybrid/EV Auxiliary)Hybrid
Suspension Fault / Air SuspensionSuspension
CAN Bus / Network Communication FaultNetwork
Water in Fuel FilterFuel
Diesel Injector FaultFuel
Steering Angle Sensor FaultSteering
Turbo / Boost Pressure FaultEngine
Regenerative Braking Fault (Hybrid/EV)Hybrid
🟡 MONITOR
Fuel Cap / Evap SystemEmissions
4WD / AWD SystemDrivetrain
Bulb Failure WarningLighting
Headlight Range / Leveling FaultLighting
Service / Maintenance DueMaintenance
A/C System FaultHvac
Clutch Wear WarningTransmission
Cruise Control / ACC FaultADAS
🔵 INFORMATION
Engine Temperature Low (Blue)Cooling
Glow Plug / Diesel PreheatEngine
Traction Control / ESC OffChassis
Seatbelt ReminderActive safety
Rear Fog Light IndicatorLighting
Lane Departure / LDWS WarningADAS
Forward Collision Warning (FCW/AEB)ADAS
Blind Spot Monitor FaultADAS
Rear Parking Sensor / Camera FaultADAS
Windshield Washer Fluid LowMaintenance
Door Open WarningBody
Hood / Trunk Open WarningBody
Gear Shift Indicator (Manual)Transmission
Sport / Performance Mode ActiveTransmission
REPORTED COMPLAINTS & PROBLEMS (NHTSA)
162 owner complaints filed with the U.S. National Highway Traffic Safety Administration (NHTSA) for the Smart Fortwo across model years 1998–2019. These are real, verified reports submitted by vehicle owners.
6 crash reports 30 fires 7 injuries 1 death
Complaints by model year (most reported first)
Model year 200860
Model year 200960
Model year 201116
Model year 20179
Model year 20128
Model year 20106
Model year 20052
Model year 20191
Most reported components (all years)
Engine48
Electrical System25
Unknown Or Other24
Power Train24
Engine And Engine Cooling17
Fuel/Propulsion System14
Sample reports
TL* THE CONTACT OWNS A 2008 SMART FORTWO. AFTER THE VEHICLE WAS STARTED AND SHIFTED INTO REVERSE, IT FAILED TO RESPOND. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF ORLANDO (810 ORLANDO AVE, MAITLAND, FL 32751, (407) 680-0784) TO BE DIAGNOS… (MY 2008)
WITHIN THE SPACE OF THREE MONTHS, IN THE MIDDLE OF DRIVING MY SMARTCAR, MY DASH DISPLAY HAS GONE FROM SHOWING D (FOR DRIVE) TO N AND THEN FLASHING THREE VERTICAL BARS. I HAVE LOST ALL CONTROL OF DRIVING THE CAR AND LUCKILY THERE WAS SPAC… (MY 2009)
I AM ORIGINAL OWNER SINCE FEB 09 (MANF 12/08) AND ITS NOW 7 YRS OLD AND REQS NEW BATTERY. LIFTING UP FLOOR MAT TO REMOVE OLD BATTERY I NOTICED STICKY RED OILY SUBSTANCE (UNKOWN SOURCE BUT NOW SUSPECT BATTERY VAPOR CONDENSATION) AROUND TO… (MY 2009)
2008 Smart Fortwo Pure, currently with 85,036 miles, factory equipped with optional POWER STEERING - ELECTRIC, power steering had worked fine until Fall 2020 when cold temperatures caused steering lock-up, until car interior warmed enoug… (MY 2008)
Source: NHTSA complaints database (U.S. data.gov). Figures cover production years 1998–2019.
Frequently Asked Questions
Does the Smart Fortwo have any safety recalls?
Yes — 6 official NHTSA recall campaign(s) affect this model, mainly: STRUCTURE:FRAME AND MEMBERS, ENGINE AND ENGINE COOLING:EXHAUST SYSTEM, PARKING BRAKE. Check the recalls section for your exact year/VIN.
What does fault code P0300 mean on the Smart Fortwo?
Random/Multiple Cylinder Misfire Detected This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
What does fault code P0128 mean on the Smart Fortwo?
Coolant temperature below thermostat regulating temperature — thermostat stuck open or faulty This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
What does fault code P0011 mean on the Smart Fortwo?
A Camshaft Position Timing Over-Advanced or System Performance (Bank 1) This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
Are transmission problems common on the Smart Fortwo?
Yes — 27 of 154 real owner reports filed with NHTSA mention the transmission. One owner reported: “TL* THE CONTACT OWNS A 2008 SMART FORTWO. AFTER THE VEHICLE WAS STARTED AND SHIFTED INTO REVERSE, IT FAILED TO RESPOND. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF ORLANDO (810 ORLANDO AVE, MAITLAND, FL…” See the owner-reported complaints section below for more.
Are electrical problems common on the Smart Fortwo?
Yes — 28 of 154 real owner reports filed with NHTSA mention the electrical. One owner reported: “The contact owns a 2008 Smart Fortwo. The contact received notification of NHTSA Campaign Number: 18V273000(Engine and Engine Cooling) however, the part to do the recall repair was not yet available. …” See the owner-reported complaints section below for more.
Are engine problems common on the Smart Fortwo?
Yes — 65 of 154 real owner reports filed with NHTSA mention the engine. One owner reported: “The contact owns a 2008 Smart Fortwo. The contact received notification of NHTSA Campaign Number: 18V273000(Engine and Engine Cooling) however, the part to do the recall repair was not yet available. …” See the owner-reported complaints section below for more.
Which OBD2 fault codes are commonly documented for the Smart Fortwo (1998–2019)?
Commonly documented OBD2 codes across many vehicles include: P0420, P0300, P0171. Find the full description, likely causes and estimated repair costs in the OBD2 Codes section on this page.
How often should the Smart Fortwo (1998–2019) be serviced?
Routine maintenance for the Smart Fortwo (1998–2019) typically includes an oil change every 6,000–9,000 miles (10,000–15,000 km), an air filter every 12,000–18,000 miles (20,000–30,000 km) and a brake inspection every 12,000 miles (20,000 km). Check the full plan with specific intervals in the Scheduled Maintenance section on this page.
Considering buying a Smart Fortwo (1998–2019)? Use this guide to check expected maintenance costs, the most reported fault codes and parts availability on the market. Real data, zero commercial estimates.