Mercedes E (2004)

Estimated running costs and MOT pass rates from 8,333 MOT tests in 2024.

Annual Cost

£3,303

£275/month

MOT Pass Rate

78%

Average

Road Tax

£790

Estimated/year

Est. Insurance

Grp 35-50

3199cc Petrol

Check Carefully

78% pass rate, £3,303/year to run. Close to the average across all models.

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Petrol3199cc22 years old8,333 tests139k miles avg

Annual Running Costs

Fuel (Petrol, 3199cc)

~30 mpg

£1,958

Road Tax

Estimated CO2 band

£790

MOT Test

£55

Predicted Repairs

£500

Total per year£3,303

Per month£275/mo

Per week£64/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p 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

78% MOT pass rate(Average)

0%All-model avg: 82%100%

Average reliability. Expect some repairs as it ages. That's close to the average of 82% across all models in our data. It falls below the Mercedes brand average of 87%.

78% of MOT tests on Mercedes Es from 2004 ended in a pass in 2024, when they were about 20 years old. That's based on 8,333 tests across the UK, retests included. The average mileage recorded at those tests was 138,870 miles.

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How Does It Compare?

Rank among 2004 models137th of 470(top half)

Rank among Mercedes models1127th of 1,376(bottom 19%)

vs average of all models-4%(82% avg)

vs 2004 models average+6%(72% avg)

vs Mercedes average-9%(87% avg)

Mileage Analysis

138,870

Average miles

148,000

Expected for age

The average 2004 Mercedes E had 138,870 miles on the clock at its 2024 MOT, which is in line with the expected 148,000 miles for a 20-year-old car, suggesting normal everyday use.

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Best Year to Buy?

Of the years with at least 100 tests, the 2021 model has the highest MOT pass rate at 92%, while the 1997 model has the lowest at 77%. The 2004 scores 78%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Mercedes E by Year

Year	Pass Rate	Tests	Avg Mileage
2023	92%	53	32,945 mi
2022	96%	126	59,884 mi
2021	92%	4,602	34,724 mi
2020	90%	14,944	39,756 mi
2019	90%	41,000	54,796 mi
2018	90%	47,312	65,452 mi
2017	89%	47,254	81,087 mi
2016	89%	42,891	87,292 mi
2015	86%	44,602	93,549 mi
2014	84%	44,780	95,170 mi
2013	82%	42,002	100,537 mi
2012	81%	31,910	105,440 mi
2011	81%	30,211	107,589 mi
2010	80%	25,610	111,787 mi
2009	80%	14,250	119,764 mi
2008	79%	8,606	134,385 mi
2007	80%	10,451	135,015 mi
2006	79%	7,256	133,383 mi
2005	78%	8,269	136,951 mi
2004	78%	8,333	138,870 mi
2003	78%	5,869	136,033 mi
2002	79%	2,009	120,200 mi
2001	77%	1,446	110,720 mi
2000	79%	1,031	110,044 mi
1999	81%	1,453	121,790 mi
1998	83%	1,696	116,683 mi
1997	77%	975	105,694 mi
1996	78%	1,535	128,722 mi
1995	79%	2,442	133,725 mi
1994	79%	2,118	129,558 mi
1993	78%	599	123,052 mi
1992	80%	148	142,883 mi
1991	78%	90	110,439 mi
1990	82%	85	135,367 mi

Similar Cars to Consider

Land Rover Freelander

2006 · 3192cc Petrol

£3,303/year

70%

-8%

Porsche Boxster

2005 · 3197cc Petrol

£3,153/year

86%

+8%

BMW X3

2006 · 2996cc Petrol

£2,958/year

78%

same

Jaguar X-Type

2006 · 2967cc Petrol

£2,958/year

70%

-8%

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About the 2004 Mercedes E

The 2004 Mercedes E is a premium performance car. Our records list a 3199cc petrol engine, though engines vary between versions. 8,333 MOT tests were recorded on this model in 2024, making it a reasonably common sight on UK roads. Among all models from 2004, the average MOT pass rate is 72%, and this model beats that benchmark.

With an average of 138,870 miles recorded at its 2024 MOT tests, Mercedes E owners drive about as much as the UK average.

2004 Mercedes E Fuel Costs

The 3199cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,958 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 2004 Mercedes E?

Total estimated annual running cost is £3,303 (£275/month), broken down as £1,958 fuel, £790 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 78% pass rate. Keeping on top of servicing will help avoid surprises.

Mercedes E Reliability Trend

Newer Mercedes Es pass their MOT more often than older ones, by 6 percentage points on average, which is mostly down to age and wear.

Buying a Used 2004 Mercedes E

At 22 years old, the Mercedes E 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 92%. With 8,333 MOT tests in our data, there's strong statistical confidence in these figures.

What the 2004 Mercedes E Fails Its MOT On

Share of the 1,059 MOT tests on the 2004 Mercedes E that failed at the first attempt in 2025, next to all cars and vans of the same age.

Suspension45%
Same age: 39%
Lights and electrics37%
Same age: 50% (fails on this less often)
Brakes34%
Same age: 30%
Tyres20%
Same age: 14% (fails on this more often)

DVSA anonymised MOT data for 2025; a test that failed on two areas counts in both. How we count it · Mercedes E reliability, common problems and years to avoid

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.

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.

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

Watch out

With an average of 139k 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 Mercedes E 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
Mercedes E(2004)	78%	£1,958	£790	Grp 35-50	£3,303
Land Rover Freelander(2006)	70%	£1,958	£790	Grp 35-50	£3,303same
Porsche Boxster(2005)	86%	£1,958	£790	Grp 35-50	£3,153-£150
BMW X3(2006)	78%	£1,958	£445	Grp 30-42	£2,958-£345
Jaguar X-Type(2006)	70%	£1,958	£445	Grp 30-42	£2,958-£345

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 2004 Mercedes E

Is the 2004 Mercedes E reliable?

Average reliability. Expect some repairs as it ages. 78% of MOT tests on 2004 Mercedes Es ended in a pass, from 8,333 tests (DVSA MOT data for tests in 2024, retests included). That's 4 points below the average of 82% across all models in the same data.

How much does a 2004 Mercedes E cost to run?

Our estimate is £3,303 a year (£275 a month): £1,958 fuel, £790 road tax, £55 MOT and £500 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2004 Mercedes E?

78% of 8,333 MOT tests on the 2004 Mercedes E ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 137th of 470 models first registered in 2004 (top half).

Which year Mercedes E has the best MOT pass rate?

Of the years with at least 100 tests, the 2021 Mercedes E has the highest MOT pass rate at 92% and the 1997 the lowest at 77%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2004 Mercedes E?

The average mileage recorded at MOT tests on the 2004 Mercedes E is 138,870 miles, which is in line with the expected 148,000 miles for a 20-year-old car, suggesting normal everyday use.