How much does a 2003 BMW 5 SERIES cost to run?

Estimated annual running cost is £2,195 (£183/month), including £1245 fuel, £395 road tax, £55 MOT, and £500 predicted repairs.

What is the MOT pass rate for a 2003 BMW 5 SERIES?

The 2003 BMW 5 SERIES has a 77% MOT pass rate based on 437 tests in 2026. This ranks 144 out of 445 cars from 2003.

Which year BMW 5 SERIES is most reliable?

The 2023 BMW 5 SERIES has the highest MOT pass rate at 98%. The least reliable year is 1999 at 71%.

What is the average mileage for a 2003 BMW 5 SERIES?

The average mileage for a 2003 BMW 5 SERIES is 139,654 miles, which is in line with the expected 170,200 miles for a 23-year-old car, suggesting normal everyday use.

BMW 5 SERIES (2003)

Q: Is the 2003 BMW 5 SERIES reliable?

Average reliability. Expect some repairs as it ages. 77% of BMW 5 SERIESs from 2003 passed their MOT first time in 2026, based on 437 tests. That's 5 points below the national average of 82%.

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

Annual Cost

£2,195

£183/month

MOT Pass Rate

77%

Average

Road Tax

£395

Based on CC/year

Insurance

Grp 25-38

2497cc Diesel

Check Carefully

77% pass rate, £2195/year to run. 5 points below average.

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Diesel2497cc23 years old437 tests140k miles avg

Annual Running Costs

Fuel (Diesel, 2497cc)

~40 mpg

£1,245

Road Tax

Based on 2497cc

£395

MOT Test

£55

Predicted Repairs

£500

Total per year£2,195

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 23 years old, 77% of BMW 5 SERIESs from 2003 passed their MOT first time in 2026. That's based on 437 tests across the UK. The average mileage at this age is 139,654 miles.

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How Does It Compare?

Rank among 2003 cars144th of 445(top 32%)

Rank among BMW models1455th of 1,564(top 93%)

vs national average-5%(82% avg)

vs 2003 cars average+5%(72% avg)

vs BMW average-11%(88% avg)

Mileage Analysis

139,654

Average miles

170,200

Expected for age

The average 2003 BMW 5 SERIES has 139,654 miles on the clock, which is in line with the expected 170,200 miles for a 23-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2023 model with a 98% MOT pass rate, while the 1999 model has the lowest at 71%. The 2003 sits between the two at 77%.

BMW 5 SERIES by Year

Year	Pass Rate	Tests	Avg Mileage
2023	98%	185	24,552 mi
2022	96%	586	33,834 mi
2021	93%	4,081	35,046 mi
2020	92%	9,409	40,517 mi
2019	92%	33,766	52,218 mi
2018	91%	40,272	63,822 mi
2017	90%	28,884	73,845 mi
2016	91%	104	58,170 mi
2015	93%	135	77,391 mi
2014	88%	495	96,084 mi
2013	83%	12,106	116,962 mi
2012	83%	12,364	124,375 mi
2011	83%	2,348	129,743 mi
2010	83%	1,299	135,211 mi
2009	83%	1,296	149,453 mi
2008	83%	1,682	154,421 mi
2007	81%	1,827	159,927 mi
2006	80%	1,465	158,383 mi
2005	76%	866	156,443 mi
2004	78%	555	149,786 mi
2003	77%	437	139,654 mi
2002	78%	330	147,542 mi
2001	81%	217	138,008 mi
2000	75%	179	151,070 mi
1999	71%	224	143,099 mi
1998	80%	184	126,519 mi
1997	79%	94	129,696 mi
1996	78%	55	148,837 mi
1995	77%	60	147,066 mi
1994	84%	51	134,866 mi

Similar Cars to Consider

BMW 3 SERIES

2005 · 2926cc Diesel

£2,050/year

78%

+1%

HONDA CIVIC

2005 · 2204cc Diesel

£2,050/year

73%

-4%

VOLKSWAGEN TRANSPORTER

2005 · 2460cc Diesel

£2,050/year

72%

-5%

LAND ROVER DISCOVERY

2005 · 2600cc Diesel

£2,050/year

78%

+1%

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About the 2003 BMW 5 SERIES

The 2003 BMW 5 SERIES is a premium with a 2497cc diesel engine. 437 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. Among all cars from 2003, the average MOT pass rate is 72%, and this model beats that benchmark.

With an average of 139,654 miles at 23 years old, BMW 5 SERIES owners drive about as much as the UK average.

2003 BMW 5 SERIES Fuel Costs

The 2497cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (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 2003 BMW 5 SERIES?

Total estimated annual running cost is £2,195 (£183/month), broken down as £1245 fuel, £395 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 5 SERIES Reliability Trend

Newer BMW 5 SERIESs show better MOT pass rates than older ones, with an average improvement of 11 percentage points.

Buying a Used 2003 BMW 5 SERIES

At 23 years old, the BMW 5 SERIES 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 2023 model has the highest pass rate at 98%.

Common Issues to Watch For

Based on the 2003 BMW 5 SERIES's fuel type, age, and engine size, these are the most likely problem areas to check.

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.

Dual Mass Flywheel

Watch out

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

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 140k 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 2003 BMW 5 SERIES stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
BMW 5 SERIES(2003)	77%	£1245	£395	Grp 25-38	£2195
BMW 3 SERIES(2005)	78%	£1245	£250	Grp 30-42	£2050-£145
HONDA CIVIC(2005)	73%	£1245	£250	Grp 25-38	£2050-£145
VOLKSWAGEN TRANSPORTER(2005)	72%	£1245	£250	Grp 25-38	£2050-£145
LAND ROVER DISCOVERY(2005)	78%	£1245	£250	Grp 30-42	£2050-£145

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.