How much does a 2003 MERCEDES A-CLASS cost to run?

Estimated annual running cost is £2,577 (£215/month), including £1592 fuel, £430 road tax, £55 MOT, and £500 predicted repairs.

What is the MOT pass rate for a 2003 MERCEDES A-CLASS?

The 2003 MERCEDES A-CLASS has a 71% MOT pass rate based on 2,442 tests in 2026. This ranks 269 out of 445 cars from 2003.

Which year MERCEDES A-CLASS is most reliable?

The 2021 MERCEDES A-CLASS has the highest MOT pass rate at 95%. The least reliable year is 1999 at 68%.

MERCEDES A-CLASS (2003)

Q: Is the 2003 MERCEDES A-CLASS reliable?

Average reliability. Expect some repairs as it ages. 71% of MERCEDES A-CLASSs from 2003 passed their MOT first time in 2026, based on 2,442 tests. That's 11 points below the national average of 82%.

Q: What is the average mileage for a 2003 MERCEDES A-CLASS?

The average mileage for a 2003 MERCEDES A-CLASS is 81,910 miles, which is significantly below the expected 170,200 miles for a 23-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

Running costs, reliability data, and common problems from 2,442 real MOT tests.

Annual Cost

£2,577

£215/month

MOT Pass Rate

71%

Average

Road Tax

£430

Based on CC/year

Insurance

Grp 25-38

2084cc Petrol

Check Carefully

71% pass rate, £2577/year to run. 11 points below average.

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Petrol2084cc23 years old2,442 tests82k miles avg

Annual Running Costs

Fuel (Petrol, 2084cc)

~30 mpg

£1,592

Road Tax

Based on 2084cc

£430

MOT Test

£55

Predicted Repairs

Higher estimate due to low pass rate

£500

Total per year£2,577

Per month£215/mo

Per week£50/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

71% MOT pass rate(Average)

0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's 11 points below the national average of 82%. It falls below the MERCEDES brand average of 87%.

At 23 years old, 71% of MERCEDES A-CLASSs from 2003 passed their MOT first time in 2026. That's based on 2,442 tests across the UK. The average mileage at this age is 81,910 miles.

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How Does It Compare?

Rank among 2003 cars269th of 445(top 60%)

Rank among MERCEDES models1350th of 1,408(top 96%)

vs national average-11%(82% avg)

vs 2003 cars average-1%(72% avg)

vs MERCEDES average-16%(87% avg)

Mileage Analysis

81,910

Average miles

170,200

Expected for age

The average 2003 MERCEDES A-CLASS has 81,910 miles on the clock, which is significantly below the expected 170,200 miles for a 23-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

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Best Year to Buy?

The most reliable year is the 2021 model with a 95% MOT pass rate, while the 1999 model has the lowest at 68%. The 2003 sits between the two at 71%.

MERCEDES A-CLASS by Year

Year	Pass Rate	Tests	Avg Mileage
2021	95%	204	20,573 mi
2020	92%	296	25,924 mi
2019	90%	17,959	42,922 mi
2018	89%	81,134	48,596 mi
2017	88%	82,055	58,788 mi
2016	86%	78,925	68,387 mi
2015	85%	57,434	77,575 mi
2014	83%	51,817	86,660 mi
2013	83%	34,582	92,179 mi
2012	79%	9,525	74,077 mi
2011	78%	9,398	73,721 mi
2010	76%	11,300	79,296 mi
2009	75%	12,533	84,461 mi
2008	74%	12,272	89,507 mi
2007	74%	11,036	91,201 mi
2006	72%	8,389	91,943 mi
2005	73%	5,552	88,124 mi
2004	71%	2,470	84,566 mi
2003	71%	2,442	81,910 mi
2002	70%	1,766	83,515 mi
2001	72%	1,096	88,180 mi
2000	69%	516	80,481 mi
1999	68%	526	79,332 mi
1998	72%	72	85,941 mi

Similar Cars to Consider

MINI MINI

2005 · 1598cc Petrol

£1,827/year

71%

same

FORD FOCUS

2005 · 1596cc Petrol

£1,827/year

71%

same

TOYOTA COROLLA

2005 · 1598cc Petrol

£1,827/year

76%

+5%

RENAULT CLIO

2005 · 1998cc Petrol

£2,217/year

67%

-4%

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About the 2003 MERCEDES A-CLASS

The 2003 MERCEDES A-CLASS is a family car with a 2084cc petrol engine. 2,442 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2003, the average MOT pass rate is 72%, and this model falls short of that benchmark.

With an average of 81,910 miles at 23 years old, MERCEDES A-CLASS 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.

2003 MERCEDES A-CLASS Fuel Costs

The 2084cc petrol engine offers a reasonable balance between performance and economy. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2003 MERCEDES A-CLASS?

Total estimated annual running cost is £2,577 (£215/month), broken down as £1592 fuel, £430 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 71% pass rate. Keeping on top of servicing will help avoid surprises.

MERCEDES A-CLASS Reliability Trend

Newer MERCEDES A-CLASSs show better MOT pass rates than older ones, with an average improvement of 14 percentage points.

Buying a Used 2003 MERCEDES A-CLASS

At 23 years old, the MERCEDES A-CLASS 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 2003 MERCEDES A-CLASS's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 23 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.

Oil Consumption

Medium risk

Larger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.

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 82k 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 2003 MERCEDES A-CLASS stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
MERCEDES A-CLASS(2003)	71%	£1592	£430	Grp 25-38	£2577
MINI MINI(2005)	71%	£1137	£135	Grp 12-25	£1827-£750
FORD FOCUS(2005)	71%	£1137	£135	Grp 12-25	£1827-£750
TOYOTA COROLLA(2005)	76%	£1137	£135	Grp 12-25	£1827-£750
RENAULT CLIO(2005)	67%	£1327	£135	Grp 18-32	£2217-£360

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.