Is the 2004 BMW 120 reliable?

Average reliability. Expect some repairs as it ages. 77% of BMW 120s from 2004 passed their MOT first time in 2026, based on 1,437 tests. That's 5 points below the national average of 82%.

How much does a 2004 BMW 120 cost to run?

Estimated annual running cost is £2,197 (£183/month), including £1327 fuel, £315 road tax, £55 MOT, and £500 predicted repairs.

What is the MOT pass rate for a 2004 BMW 120?

The 2004 BMW 120 has a 77% MOT pass rate based on 1,437 tests in 2026. This ranks 175 out of 491 cars from 2004.

Which year BMW 120 is most reliable?

The 2021 BMW 120 has the highest MOT pass rate at 95%. The least reliable year is 2006 at 76%.

BMW 120 (2004)

Q: What is the average mileage for a 2004 BMW 120?

The average mileage for a 2004 BMW 120 is 127,612 miles, which is below the expected 162,800 miles for a 22-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 1,437 real MOT tests.

Annual Cost

£2,197

£183/month

MOT Pass Rate

77%

Average

Road Tax

£315

Based on CC/year

Insurance

Grp 18-32

1995cc Petrol

Check Carefully

77% pass rate, £2197/year to run. 5 points below average.

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Petrol1995cc22 years old1,437 tests128k miles avg

Annual Running Costs

Fuel (Petrol, 1995cc)

~36 mpg

£1,327

Road Tax

Based on 1995cc

£315

MOT Test

£55

Predicted Repairs

£500

Total per year£2,197

Per month£183/mo

Per week£42/wk

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

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Reliability Verdict

77% MOT pass rate(Average)

0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's close to the national average of 82%. It falls below the BMW brand average of 88%.

At 22 years old, 77% of BMW 120s from 2004 passed their MOT first time in 2026. That's based on 1,437 tests across the UK. The average mileage at this age is 127,612 miles.

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How Does It Compare?

Rank among 2004 cars175th of 491(top 36%)

Rank among BMW models1452th of 1,564(top 93%)

vs national average-5%(82% avg)

vs 2004 cars average+5%(72% avg)

vs BMW average-11%(88% avg)

Mileage Analysis

127,612

Average miles

162,800

Expected for age

The average 2004 BMW 120 has 127,612 miles on the clock, which is below the expected 162,800 miles for a 22-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

The most reliable year is the 2021 model with a 95% MOT pass rate, while the 2006 model has the lowest at 76%. The 2004 sits between the two at 77%.

BMW 120 by Year

Year	Pass Rate	Tests	Avg Mileage
2021	95%	483	28,181 mi
2020	92%	1,544	34,573 mi
2019	91%	1,402	40,327 mi
2018	88%	2,782	51,035 mi
2017	89%	4,400	60,816 mi
2016	88%	6,285	70,978 mi
2015	87%	7,182	80,308 mi
2014	85%	6,016	94,560 mi
2013	84%	4,844	94,843 mi
2012	81%	5,511	100,642 mi
2011	81%	7,312	105,780 mi
2010	79%	7,884	109,003 mi
2009	80%	7,071	113,731 mi
2008	78%	8,671	117,236 mi
2007	78%	4,860	126,038 mi
2006	76%	4,412	139,019 mi
2005	77%	4,504	139,808 mi
2004	77%	1,437	127,612 mi

Similar Cars to Consider

FORD FOCUS

2006 · 1596cc Petrol

£1,827/year

73%

-4%

MINI MINI

2005 · 1598cc Petrol

£1,827/year

71%

-6%

BMW 3 SERIES

2006 · 1796cc Petrol

£1,867/year

80%

+3%

RENAULT CLIO

2006 · 1998cc Petrol

£2,217/year

68%

-9%

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About the 2004 BMW 120

The 2004 BMW 120 is a premium with a 1995cc petrol engine. 1,437 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2004, the average MOT pass rate is 72%, and this model beats that benchmark.

With an average of 127,612 miles at 22 years old, BMW 120 owners tend to use this car less than the typical driver.

2004 BMW 120 Fuel Costs

The 1995cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2004 BMW 120?

Total estimated annual running cost is £2,197 (£183/month), broken down as £1327 fuel, £315 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 77% pass rate. Keeping on top of servicing will help avoid surprises.

BMW 120 Reliability Trend

Newer BMW 120s show better MOT pass rates than older ones, with an average improvement of 10 percentage points.

Buying a Used 2004 BMW 120

At 22 years old, the BMW 120 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 2021 model has the highest pass rate at 95%.

Common Issues to Watch For

Based on the 2004 BMW 120's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 22 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.

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

Watch out

With an average of 128k 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.

Engine Mounts

Medium risk

Worn engine mounts cause excessive vibration and movement. Replacement costs £150-£400 per mount. Check for vibration at idle with the bonnet open.

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 2004 BMW 120 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
BMW 120(2004)	77%	£1327	£315	Grp 18-32	£2197
FORD FOCUS(2006)	73%	£1137	£135	Grp 12-25	£1827-£370
MINI MINI(2005)	71%	£1137	£135	Grp 12-25	£1827-£370
BMW 3 SERIES(2006)	80%	£1327	£135	Grp 18-32	£1867-£330
RENAULT CLIO(2006)	68%	£1327	£135	Grp 18-32	£2217+£20

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.