Car statistics by year
2012 Mercedes-Benz B-Class
Mercedes-Benz B-Class cars first registered in 2012: how they did at their 2025 MOT, what failed them, how far they have been driven and how many are still on the road. Compared with every car first registered in 2012, so like is set against like.
- MOT first-time pass rate, 2025 69.3% All 2012 cars 63.6%
- Typical mileage at the MOT 85,600 miles; all 2012 cars 90,800
- Left at the end of 2025 5,574 88.3% of the 6,316 at the end of 2014
- Tests finding a dangerous defect 8.6% All 2012 cars 9.2%
- Tests with an advisory 53.3% All 2012 cars 62.0%
- MOT tests in 2025 5,752 normal tests in Great Britain
How do 2012 Mercedes-Benz B-Classes do at their MOT?
In 2025, at about 13 years old, 69.3% of 2012 Mercedes-Benz B-Class MOT tests were passed first time, against 63.6% for all cars first registered in 2012. 2012 Mercedes-Benz B-Classes did better than average for their age, by 5.7 points. A year earlier the same cars passed 70.4% of the time (all 2012 cars 64.5%).
MOT pass rate by year of first registration: Mercedes-Benz B-Class vs all cars
Each pair of bars is one year of first registration, tested in 2025. Older cars pass less often, so compare each Mercedes-Benz B-Class bar with the all-cars bar beside it.
| First registered | Mercedes-Benz B-Class | All cars |
|---|---|---|
| ’06 | 56.5% | 56.9% |
| ’07 | 55.6% | 57.3% |
| ’08 | 55.2% | 57.0% |
| ’09 | 58.2% | 58.2% |
| ’10 | 58.3% | 59.3% |
| ’11 | 58.8% | 61.5% |
| ’12 | 69.3% | 63.6% |
| ’13 | 71.1% | 66.0% |
| ’14 | 71.8% | 69.1% |
| ’15 | 76.6% | 72.6% |
| ’16 | 79.2% | 75.6% |
| ’17 | 80.4% | 79.1% |
Source:DVSA,UK Motoring analysis 2025 Updated
Most common MOT failures on the 2012 Mercedes-Benz B-Class
Coil spring: fractured or broken was the most common single reason a 2012 Mercedes-Benz B-Class failed, on 14.9% of about 1,800 failed tests. By area of the car, suspension failed most often (41.6% of failed tests; all 2012 cars 39.1%). 8.6% of tests found at least one dangerous defect, against 9.2% for all cars first registered in 2012. A failed test can have several defects, so shares add up to more than 100%.
Most common reasons for failure
Share of failed tests with each defect. The same fault on any wheel or side counts once.
| Defect | Share of failed tests |
|---|---|
| Coil spring: fractured or broken Suspension | 14.9% |
| Linkage ball joint dust cover no longer prevents the ingress of dirt Suspension | 13.6% |
| Malfunction indicator lamp: inoperative or indicates a malfunction Noise, emissions and leaks | 11.7% |
| Registration plate lamp(s): inoperative in the case of a single lamp or all lamps Lamps, reflectors and electrical equipment | 9.9% |
| Suspension arms: ball joint excessively worn Suspension | 6.8% |
| Rigid brake pipes: excessively corroded Brakes | 6.8% |
| Tyres: ply or cords exposed Tyres | 6.3% |
| Stop lamp: not working Lamps, reflectors and electrical equipment | 5.8% |
| Anti-roll bars: ball joint dust cover no longer prevents the ingress of dirt Suspension | 5.6% |
| Tyres: tread depth below requirements of 1.6mm Tyres | 5.6% |
Source:DVSA,UK Motoring analysis 2025 Updated
Failure categories: Mercedes-Benz B-Class vs all 2012 cars
The marker shows the share for all cars first registered the same year.
| Category | Share of failed tests |
|---|---|
| Suspension | 41.6% |
| Lamps, reflectors and electrical equipment | 33.8% |
| Tyres | 23.8% |
| Brakes | 18.9% |
| Noise, emissions and leaks | 12.7% |
| Visibility | 11.2% |
| Road wheels | 5.7% |
| Seat belts and supplementary restraint systems | 5.4% |
Source:DVSA,UK Motoring analysis 2025 Updated
Most common MOT advisories on the 2012 Mercedes-Benz B-Class
An advisory is something the tester noticed that did not fail the test but may need work soon. 53.3% of 2012 Mercedes-Benz B-Class tests had at least one (all 2012 cars 62.0%). These are the things to check on one you are thinking of buying.
Most common advisories
| Advisory | Share of tests |
|---|---|
| Tread depth: worn close to legal limit or worn on edge Tyres | 19.1% |
| Rigid brake pipes: corroded, covered in grease or other material Brakes | 11.1% |
| Brake discs: worn, pitted or scored, but not seriously weakened Brakes | 9.2% |
| Tyres: slightly damaged or cracking or perishing Tyres | 8.4% |
| Brake pads: wearing thin Brakes | 7.1% |
| Brake discs: worn, but not excessively Brakes | 5.2% |
| Coil spring: corroded Suspension | 4.5% |
| Suspension arms: ball joint has slight play Suspension | 4.5% |
| Tyres: cut but not deep enough to reach the ply or cords Tyres | 2.5% |
| Engine oil leak, but not excessive Noise, emissions and leaks | 2.3% |
Source:DVSA,UK Motoring analysis 2025 Updated
What mileage is normal for a 2012 Mercedes-Benz B-Class?
Half of the 2012 Mercedes-Benz B-Classes tested in 2025 had covered fewer than 85,600 miles. A quarter had covered fewer than 63,800 and a quarter more than 108,100. For all cars first registered in 2012, the middle figure was 90,800 miles, so 2012 Mercedes-Benz B-Classes have been driven 5.7% less far than average.
Mileage at the 2025 MOT
Odometer readings at each car’s latest MOT of the year. The bar covers the middle half of cars; the line the middle 80%.
| 10% | 25% | Median | 75% | 90% | Cars | |
|---|---|---|---|---|---|---|
| 2012 Mercedes-Benz B-Class | 47,200 | 63,800 | 85,600 | 108,100 | 131,300 | 5,563 |
| All 2012 cars | 47,100 | 66,700 | 90,800 | 117,400 | 145,000 | 1,483,042 |
Source:DVSA,UK Motoring analysis 2025 Updated
How many 2012 Mercedes-Benz B-Classes are left?
At the end of 2014, 6,316 2012 Mercedes-Benz B-Classes were on the DVLA record in the United Kingdom (these counts start in 2014). By the end of 2025, 5,574 were: 5,310 licensed and 264 declared off the road (SORN). That is 88.3% still on the record, against 83.1% for all cars first registered in 2012.
Share still on the record since 2014
Cars licensed or SORN at each year end, as a share of the number at the end of 2014. Cars scrapped or exported leave the record. Late registrations and imports can push the share above 100%.
| Year end | 2012 Mercedes-Benz B-Class | All 2012 cars |
|---|---|---|
| 2014 | 100.0% | 100.0% |
| 2015 | 95.1% | 97.0% |
| 2016 | 97.2% | 98.2% |
| 2017 | 97.2% | 97.4% |
| 2018 | 96.9% | 96.3% |
| 2019 | 96.4% | 95.2% |
| 2020 | 95.2% | 93.9% |
| 2021 | 94.7% | 93.0% |
| 2022 | 94.0% | 91.4% |
| 2023 | 92.4% | 89.2% |
| 2024 | 90.4% | 86.5% |
| 2025 | 88.3% | 83.1% |
Source:DfT / DVLA End of 2025 Updated
Recalls that may affect cars built around 2012
14 of the Mercedes-Benz B-Class’s 47 recalls in DVSA’s records cover cars built during 2012. 3 have no build dates, so could apply to any year.
The 2012 on this page is the year of first registration, not the year the car was built. A car first registered early in 2012 may have been built in 2011, and recalls apply to particular build dates and VINs, so check the recalls either side too.
| Launched | Concern | Built | Vehicles |
|---|---|---|---|
| 13 Dec 2021 | Update to the diesel engine control unit software to improve the emissions | 29 Jun 2012 to 5 Jul 2013 | 31,414 (all models) |
| 13 Dec 2021 | Update to improve emissions | 13 May 2010 to 2 May 2012 | 6,014 (all models) |
| 8 Nov 2019 | The refrigerant in the air conditioning system does not meet legal requirements | 1 Jan 2012 to 31 Oct 2013 | 624 (all models) |
| 7 Nov 2019 | The refrigerant used in the air condition system does not meet legal requirements | 1 Nov 2012 to 31 Oct 2013 | 1,407 (all models) |
| 5 Nov 2019 | The refrigerant used in the air conditioning system may not meet legal requirements | 1 Nov 2012 to 31 Oct 2013 | 58 (all models) |
| 10 Sept 2019 | Air condition system refridgerant does not meet requirements | 1 Nov 2012 to 31 Oct 2013 | 7,516 (all models) |
| 11 Jun 2018 | Electrical wiring in steering assembly may be insufficiently grounded | 1 Nov 2011 to 31 Jul 2017 | 78,608 (all models) |
| 11 May 2018 | Steering components may be insufficiently grounded | 1 Nov 2011 to 31 Jul 2017 | 74,329 (all models) |
| 9 Apr 2018 | Electrical wiring in steering assembly may be insufficiently grounded | 1 Nov 2011 to 31 Jul 2017 | 67,027 (all models) |
| 18 Dec 2017 | Electrical wiring in steering assembly may be insufficiently grounded | 1 Nov 2011 to 31 Jul 2017 | 46,093 (all models) |
| 20 Jun 2017 | Vacuum line brake booster may break | 1 Apr 2011 to 30 Apr 2013 | 4,787 (all models) |
| 9 May 2016 | Rear bench seat may lift up from the rear in a collision & attached seat belts may not be anchored correctly | 1 Dec 2012 to 1 Mar 2016 | 146 |
| 14 Jul 2015 | Possibility of loss of drive | 1 Sept 2011 to 30 Jun 2013 | 3,890 (all models) |
| 25 Jul 2013 | Rear back-rest may fail | 14 Jan 2012 to 18 May 2012 | 100 |
Every Mercedes-Benz B-Class recall · Check a specific car on GOV.UK · How we match recalls
Recall details come from manufacturers through DVSA. “Vehicles” is the number the manufacturer reported; “all models” means the figure covers everything in the recall. A recall listed here may not apply to a particular car: only the manufacturer or GOV.UK can say for its VIN.
Source:DVSA,UK Motoring analysis January 1992 to September 2026 Updated
Other years of the Mercedes-Benz B-Class
17 years of the Mercedes-Benz B-Class, by year of first registration, have their own page with MOT results, common faults, mileage and how many are left. Against all cars of the same age, the 2012 cars did best at their 2025 MOT (69.3% passed first time) and the 2011 cars worst (58.8%).
| Year | Registered | Left | Pass rate |
|---|---|---|---|
| 2006 | – | 1,867 | 56.5% |
| 2007 | – | 2,331 | 55.6% |
| 2008 | – | 3,090 | 55.2% |
| 2009 | – | 3,944 | 58.2% |
| 2010 | – | 4,251 | 58.3% |
| 2011 | – | 3,360 | 58.8% |
| 2012 | – | 5,574 | 69.3% |
| 2013 | – | 6,947 | 71.1% |
| 2014 | 8,097 | 8,100 | 71.8% |
| 2015 | 5,502 | 5,642 | 76.6% |
| 2016 | 5,210 | 5,265 | 79.2% |
| 2017 | 5,296 | 5,636 | 80.4% |
| 2018 | 3,870 | 3,893 | 83.5% |
| 2019 | 3,973 | 4,155 | 89.2% |
| 2020 | 2,741 | 2,820 | 90.0% |
| 2021 | 1,783 | 1,734 | 91.7% |
| 2022 | 1,243 | 1,213 | 91.0% |
Registered: cars on the DVLA record at the end of the year they were first registered (these counts start in 2014, so older years show a dash). Left: licensed or declared SORN at the end of 2025. Both cover the United Kingdom. Pass rate: first-time passes at normal MOT tests in Great Britain in 2025; all cars: every car first registered the same year.
Data sources and methodology
| Figures | Source | Period | Records | Updated |
|---|---|---|---|---|
| MOT results and mileage | Anonymised MOT tests and results Driver and Vehicle Standards Agency Derived statistics UK Motoring | 2025 | 5,752 MOT tests of 2012 Mercedes-Benz B-Class cars | 15 September 2026 |
| Cars on the record | Vehicle licensing statistics Department for Transport | End of 2025 | 5,574 cars still on the record (licensed or SORN) | 15 September 2026 |
- MOT figures cover normal tests in Great Britain in 2025 of Mercedes-Benz B-Class cars first registered in 2012; retests are excluded. “All cars” means every car we match to a model, first registered in 2012.
- Year of first registration is DVSA’s first-use date: when the car was first registered, in the UK or abroad.
- Defects and advisories are DVSA’s descriptions made readable. Where on the car a defect was found (side, front or rear) is ignored, so the same fault on any wheel counts once per test.
- Mileage is the odometer reading at each car’s latest normal MOT of the year, as recorded by the tester. A few readings are in kilometres or mistyped; percentiles are not thrown by a handful of outliers.
- Cars on the record come from DfT table VEH0124 and cover the United Kingdom, including Northern Ireland; MOT figures cover Great Britain only.
- DVSA records the model name typed in at the test. We match those names to DVLA’s generic models, so a handful of tests may be counted under a close relative.
Contains public sector information licensed under the Open Government Licence v3.0.