BMW 125 (2012)

Estimated running costs and MOT pass rates from 451 MOT tests in 2024.

Annual Cost

£2,077

£173/month

MOT Pass Rate

88%

Good

Road Tax

£275

Estimated/year

Est. Insurance

Grp 18-32

1998cc Diesel

Solid Option

88% pass rate, £2,077/year to run. 6 points above average.

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Diesel1998cc14 years old451 tests100k miles avg

Annual Running Costs

Fuel (Diesel, 1998cc)

~48 mpg

£1,397

Road Tax

Estimated CO2 band

£275

MOT Test

£55

Predicted Repairs

£350

Total per year£2,077

Per month£173/mo

Per week£40/wk

Estimates based on 7,400 miles/year (UK average), diesel at 199.33p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.

Reliability Verdict

88% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 6 points above the average of 82% across all models in our data.

88% of MOT tests on BMW 125s from 2012 ended in a pass in 2024, when they were about 12 years old. That's based on 451 tests across the UK, retests included. The average mileage recorded at those tests was 99,940 miles.

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How Does It Compare?

Rank among 2012 models167th of 650(top half)

Rank among BMW models923rd of 1,548(bottom half)

vs average of all models+6%(82% avg)

vs 2012 models average+10%(78% avg)

vs BMW average+0%(88% avg)

Mileage Analysis

99,940

Average miles

88,800

Expected for age

The average 2012 BMW 125 had 99,940 miles on the clock at its 2024 MOT, which is in line with the expected 88,800 miles for a 12-year-old car, suggesting normal everyday use.

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Best Year to Buy?

Of the years with at least 100 tests, the 2017 model has the highest MOT pass rate at 93%, while the 2009 model has the lowest at 83%. The 2012 scores 88%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

BMW 125 by Year

Year	Pass Rate	Tests	Avg Mileage
2019	93%	70	53,948 mi
2018	90%	213	51,476 mi
2017	93%	981	62,913 mi
2016	90%	1,122	69,328 mi
2015	89%	1,937	81,292 mi
2014	87%	1,273	91,075 mi
2013	85%	992	95,378 mi
2012	88%	451	99,940 mi
2011	91%	351	79,122 mi
2010	86%	646	85,770 mi
2009	83%	684	85,858 mi
2008	84%	1,109	92,685 mi

Similar Cars to Consider

Volkswagen Golf

2014 · 1598cc Diesel

£1,794/year

87%

-1%

Vauxhall Astra

2013 · 1700cc Diesel

£2,227/year

79%

-9%

Audi A3

2014 · 1598cc Diesel

£1,794/year

86%

-2%

Volkswagen Polo

2010 · 1598cc Diesel

£1,944/year

74%

-14%

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About the 2012 BMW 125

The 2012 BMW 125 is a premium car. Our records list a 1998cc diesel engine, though engines vary between versions. 451 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. Among all models from 2012, the average MOT pass rate is 78%, and this model beats that benchmark.

With an average of 99,940 miles recorded at its 2024 MOT tests, BMW 125 owners drive about as much as the UK average.

2012 BMW 125 Fuel Costs

The 1998cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,397 per year with diesel at 199.33p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2012 BMW 125?

Total estimated annual running cost is £2,077 (£173/month), broken down as £1,397 fuel, £275 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.

BMW 125 Reliability Trend

The BMW 125 has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.

Buying a Used 2012 BMW 125

At 14 years old, the BMW 125 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2017 model has the highest pass rate at 93%.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Clutch Wear

Medium risk

With an average of 100k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.

Brake Discs and Pads

Medium risk

High-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2012 BMW 125 stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
BMW 125(2012)	88%	£1,397	£275	Grp 18-32	£2,077
Volkswagen Golf(2014)	87%	£1,219	£170	Grp 12-25	£1,794-£283
Vauxhall Astra(2013)	79%	£1,397	£275	Grp 18-32	£2,227+£150
Audi A3(2014)	86%	£1,219	£170	Grp 12-25	£1,794-£283
Volkswagen Polo(2010)	74%	£1,219	£170	Grp 12-25	£1,944-£133

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2012 BMW 125

Is the 2012 BMW 125 reliable?

Good reliability. Occasional issues but generally solid. 88% of MOT tests on 2012 BMW 125s ended in a pass, from 451 tests (DVSA MOT data for tests in 2024, retests included). That's 6 points above the average of 82% across all models in the same data.

How much does a 2012 BMW 125 cost to run?

Our estimate is £2,077 a year (£173 a month): £1,397 fuel, £275 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2012 BMW 125?

88% of 451 MOT tests on the 2012 BMW 125 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 167th of 650 models first registered in 2012 (top half).

Which year BMW 125 has the best MOT pass rate?

Of the years with at least 100 tests, the 2017 BMW 125 has the highest MOT pass rate at 93% and the 2009 the lowest at 83%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2012 BMW 125?

The average mileage recorded at MOT tests on the 2012 BMW 125 is 99,940 miles, which is in line with the expected 88,800 miles for a 12-year-old car, suggesting normal everyday use.