smart fortwo 451 facelift 2 1.0 mhd, 71 PS, 5-speed automated manual, rear-wheel drive (2012–2014)
- Power
- 71 PS (52 kW)
- Engine codes
- 3B21
- Gearbox
- 5-speed automated manual
- Production years
- 2012–2014
- Running cost per month
- €311
- Fuel
- Petrol
- Median price
- €5,900
- Reliability
- 2/5
- DIY
- 2/5
Research for this car
- Generation guide Smart ForTwo 451 (2007-2014): known problems and buying guide
The clutch and its actuator are the main risk. Check the gear changes first, then the cooling system and the oil level.
Known issues for this car
| Issue | Affects | Typical km | Repair cost | Source |
|---|---|---|---|---|
| Clutch and clutch actuator | Automated gearbox, all 451 | Not stated | 400-800 EUR (Germany, year not stated) | Generation guide |
| Overheating and coolant loss | Not split by engine | Not stated | 100-1,500 EUR (Germany, year not stated) | Generation guide |
| Drive belt on MHD petrol | MHD (start-stop) petrol | Not stated | No confirmed price | Generation guide |
| Oil loss | Not split by engine | Not stated | Not stated | Generation guide |
| Heater shut-off valve recall | Cars built 2010 to 2014 | Not stated | Free (recall) | Generation guide |
| Exhaust rust | Not split, worst on 0.8 CDI | Not stated | Not stated | Generation guide |
| Tailgate lock | Not split | Not stated | Not stated | Generation guide |
Before you buy this car
From the generation guide
- Look for coolant loss. Check the radiator, expansion tank, water pump and hoses for leaks. A leak can mean a water pump or cylinder-head gasket job, which costs up to 1,500 EUR (Germany, year not stated).
- Pull away and make several gear changes. Slow, late or jerky shifts, judder, a clutch that slips, a stiff pedal, or the three-bar warning mean a clutch or actuator job, about 400-800 EUR (Germany, year not stated). Ask for proof that the gearbox was re-learned after clutch work. That needs diagnostic equipment.
- Check the oil level on the dipstick and look under the engine for oil. Ask for oil change records. Oil loss is common, and it can get the car refused at TÜV.
- On an MHD car, listen for whistling, chirping or squealing from the drive belt when starting and driving. These are warning signs of a belt problem.
- Look at the exhaust on a lift for rust, mostly on 0.8 CDI cars used for short trips. The catalytic converter and rear silencer are one part on earlier cars, so replacing them is expensive.
- Give the VIN to a dealer and ask for open recalls. The heater shut-off valve fix (cars built 2010 to 2014) is free. The brake caliper bracket recall (cars built 28 February to 6 March 2012) corrects bolt torque.
Running costs
| Operational | €142 |
|---|---|
| Workshop | €86 |
| Fixed costs (tax, insurance) | €83 |
| Total per month | €311 |
| New-car depreciation (not included) | €35 |
ADAC figures for 15,000 km a year over 60 months
Market
Listings on mobile.de in this generation with this fuel, gearbox and power.
- Listings
- 233
- 25th percentile
- €5,000
- Median price
- €5,900
- 75th percentile
- €6,900
- Median mileage
- 100,000 km
- Median first registration
- 2013
- Dealer share
- 41.6%
Check a listing
Prices by first registration
| First registration | Listings | Median price | Median mileage |
|---|---|---|---|
| 2016 | 1 | – | – |
| 2015 | 11 | €10,500 | 93,768 km |
| 2014 | 68 | €6,000 | 100,000 km |
| 2013 | 90 | €5,990 | 97,500 km |
| 2012 | 63 | €5,250 | 107,683 km |
Medians only for years with at least 5 listings. Many cars are first registered after production ends, so years can run past the build years.
Price history
| Month | Listings | Median price | Middle half | Median mileage |
|---|---|---|---|---|
| Nov 2026 | 233 | €5,900 | €5,000 – €6,900 | 100,000 km |
| Oct 2026 | 233 | €5,900 | €5,000 – €6,900 | 100,000 km |
Median asking price at the last snapshot of each month.
ADAC versions
All 11 ADAC versions
| Version | Power | Production years | Running cost per month |
|---|---|---|---|
| fortwo coupé 1.0 mhd pure softip | 71 PS | 2012–2014 | €318 |
| fortwo coupé 1.0 mhd pulse softip | 71 PS | 2012–2014 | €321 |
| fortwo coupé 1.0 mhd passion softouch | 71 PS | 2012–2014 | €321 |
| fortwo coupé 1.0 mhd pure softouch | 71 PS | 2012–2014 | €308 |
| fortwo coupé 1.0 mhd pulse softouch | 71 PS | 2012–2014 | €311 |
| fortwo coupé 1.0 mhd edition iceshine softouch | 71 PS | 2012 | €310 |
| fortwo coupé 1.0 mhd edition sharpred softouch | 71 PS | 2012 | €310 |
| fortwo coupé 1.0 mhd edition whiteshade softouch | 71 PS | 2013–2014 | €308 |
| fortwo coupé 1.0 mhd BoConcept softouch | 71 PS | 2013–2014 | €308 |
| fortwo coupé 1.0 mhd edition citybeam softouch | 71 PS | 2013–2014 | €311 |
| fortwo coupé 1.0 mhd edition cityflame softouch | 71 PS | 2013–2014 | €311 |