MERCEDES HYMER (2004)
Running costs, common problems, and reliability data based on 37 real MOT tests in 2024.
MOT Pass Rate
81%
Total Tests (2024)
37
Avg Mileage
86,573 mi
Est. Annual Cost
£1,900
Is the 2004 MERCEDES HYMER reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It falls below the MERCEDES brand average of 87%.
At 20 years old, 81% of MERCEDES HYMERs from 2004 passed their MOT first time in 2024. That's based on 37 tests across the UK. The average mileage at this age is 86,573 miles.
How does the 2004 MERCEDES HYMER compare?
Mileage Analysis
The average 2004 MERCEDES HYMER has 86,573 miles on the clock, which is below the expected 148,000 miles for a 20-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Best year to buy a MERCEDES HYMER?
The most reliable year is the 2020 model with a 97% MOT pass rate, while the 1993 model has the lowest at 70%. The 2004 sits between the two at 81%.
How much does a 2004 MERCEDES HYMER cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
MERCEDES HYMER by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2021 | 96% | 84 | 15,168 mi |
| 2020 | 97% | 114 | 15,102 mi |
| 2019 | 93% | 131 | 17,256 mi |
| 2018 | 93% | 124 | 24,392 mi |
| 2017 | 93% | 115 | 24,882 mi |
| 2016 | 93% | 56 | 26,923 mi |
| 2015 | 100% | 32 | 49,884 mi |
| 2006 | 84% | 44 | 72,538 mi |
| 2004 | 81% | 37 | 86,573 mi |
| 2003 | 90% | 49 | 67,183 mi |
| 2002 | 82% | 44 | 72,456 mi |
| 2001 | 78% | 45 | 84,193 mi |
| 1998 | 83% | 40 | 78,746 mi |
| 1994 | 73% | 45 | 128,584 mi |
| 1993 | 70% | 104 | 158,587 mi |
| 1992 | 74% | 34 | 133,318 mi |
| 1990 | 71% | 35 | 107,692 mi |
Checking a specific MERCEDES HYMER?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2004 MERCEDES HYMER
The 2004 MERCEDES HYMER is a large car with a 2685cc diesel engine. 37 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 24% of all 2004 cars for reliability.
With an average of 86,573 miles at 20 years old, MERCEDES HYMER owners tend to use this car less than the typical driver.
2004 MERCEDES HYMER Fuel Costs
The 2685cc diesel engine is on the larger side, so fuel won't be this car's strong point. 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 2004 MERCEDES HYMER?
Total estimated annual running cost is £1,900 (£158/month), broken down as £1245 fuel, £250 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 81% pass rate. Keeping on top of servicing will help avoid surprises.
MERCEDES HYMER Reliability Trend
Newer MERCEDES HYMERs show better MOT pass rates than older ones, with an average improvement of 9 percentage points.
Buying a Used 2004 MERCEDES HYMER
At 20 years old, the MERCEDES HYMER 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 2020 model has the highest pass rate at 97%. Note: with only 37 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2004 MERCEDES HYMER
The MERCEDES HYMER is actually the most reliable option among similar diesel large cars from this era. Here are comparable diesel cars with similar engines:
- HONDA CIVIC (2006) 71% pass rate (-10%) from 28,045 tests
- BMW 3 SERIES (2005) 78% pass rate (-3%) from 24,924 tests
- VOLKSWAGEN TRANSPORTER (2006) 73% pass rate (-8%) from 23,355 tests
- LAND ROVER DISCOVERY (2006) 78% pass rate (-3%) from 17,245 tests