CarCostCheck

BMW 120I (2012)

Running costs, common problems, and reliability data based on 38 real MOT tests in 2024.

MOT Pass Rate

100%

Total Tests (2024)

38

Avg Mileage

44,138 mi

Est. Annual Cost

£1,527

Is the 2012 BMW 120I reliable?

Excellent reliability. Very few MOT failures. That's 18 points above the national average of 82%. It also outperforms the BMW brand average of 88%.

At 12 years old, 100% of BMW 120Is from 2012 passed their MOT first time in 2024. That's based on 38 tests across the UK. The average mileage at this age is 44,138 miles.

How does the 2012 BMW 120I compare?

Rank among all 2012 cars9th out of 685(top 1%)
Rank among all BMW models36th out of 1,564(top 2%)
vs national average+18% (82% avg)
vs 2012 cars average+22% (78% avg)
vs BMW average+12% (88% avg)

Mileage Analysis

The average 2012 BMW 120I has 44,138 miles on the clock, which is significantly below the expected 88,800 miles for a 12-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

How much does a 2012 BMW 120I cost to run?

Fuel (Petrol, 1590cc)
£1,137
🏛️Road Tax
£135
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,527
Per month£127/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

Checking a specific BMW 120I?

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About the 2012 BMW 120I

The 2012 BMW 120I is a premium with a 1590cc petrol engine. 38 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 1% of all 2012 cars for reliability.

With an average of 44,138 miles at 12 years old, BMW 120I owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.

2012 BMW 120I Fuel Costs

The 1590cc petrol engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2012 BMW 120I?

Total estimated annual running cost is £1,527 127/month), broken down as £1137 fuel, £135 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 100% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2012 BMW 120I

At 12 years old, the BMW 120I 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. Note: with only 38 tests in our data, these figures should be treated as indicative rather than definitive.

Alternatives to the 2012 BMW 120I

The BMW 120I is actually the most reliable option among similar petrol premiums from this era. Here are comparable petrol cars with similar engines: