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MERCEDES MOTORHOME (2005)

Running costs, reliability data, and common problems from 83 real MOT tests.

Annual Cost

£2,045

£170/month

MOT Pass Rate

86%

Good

Road Tax

£395

Based on CC/year

Insurance

Grp 30-42

2700cc Diesel

Solid Option

86% pass rate, £2045/year to run. Close to the national average.

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Diesel2700cc21 years old83 tests58k miles avg

Annual Running Costs

Fuel (Diesel, 2700cc)

~40 mpg

£1,245
Road Tax

Based on 2700cc

£395
MOT Test
£55
Predicted Repairs
£350
Total per year£2,045
Per month£170/mo
Per week£39/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

86% MOT pass rate(Good)
0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.

At 21 years old, 86% of MERCEDES MOTORHOMEs from 2005 passed their MOT first time in 2026. That's based on 83 tests across the UK. The average mileage at this age is 58,481 miles.

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How Does It Compare?

Rank among 2005 cars76th of 526(top 14%)
Rank among MERCEDES models876th of 1,408(top 62%)
vs national average+4%(82% avg)
vs 2005 cars average+14%(72% avg)
vs MERCEDES average-1%(87% avg)

Mileage Analysis

58,481

Average miles

vs

155,400

Expected for age

The average 2005 MERCEDES MOTORHOME has 58,481 miles on the clock, which is significantly below the expected 155,400 miles for a 21-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 2007 model with a 95% MOT pass rate, while the 2001 model has the lowest at 69%. The 2005 sits between the two at 86%.

MERCEDES MOTORHOME by Year

YearPass RateTestsAvg Mileage
201172%3261,005 mi
200971%42108,468 mi
200881%9187,572 mi
200795%15574,554 mi
200684%12264,969 mi
200586%8358,481 mi
200485%10470,330 mi
200382%6685,052 mi
200280%64109,471 mi
200169%6888,872 mi
200076%5187,478 mi
199984%4987,617 mi
199894%33149,288 mi
199788%33106,455 mi
199521%34103,323 mi
199263%32114,043 mi
199084%43111,634 mi

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About the 2005 MERCEDES MOTORHOME

The 2005 MERCEDES MOTORHOME is a large car with a 2700cc diesel engine. 83 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 14% of all 2005 cars for reliability.

With an average of 58,481 miles at 21 years old, MERCEDES MOTORHOME 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.

2005 MERCEDES MOTORHOME Fuel Costs

The 2700cc 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 2005 MERCEDES MOTORHOME?

Total estimated annual running cost is £2,045 170/month), broken down as £1245 fuel, £395 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 86% pass rate. Keeping on top of servicing will help avoid surprises.

MERCEDES MOTORHOME Reliability Trend

Newer MERCEDES MOTORHOMEs show better MOT pass rates than older ones, with an average improvement of 9 percentage points.

Buying a Used 2005 MERCEDES MOTORHOME

At 21 years old, the MERCEDES MOTORHOME 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 2007 model has the highest pass rate at 95%. Note: with only 83 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

Based on the 2005 MERCEDES MOTORHOME'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.

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 2005 MERCEDES MOTORHOME stacks up against similar cars for annual running costs, insurance, and tax.

CarPass RateFuel/yrTax/yrInsuranceTotal/yr
MERCEDES MOTORHOME(2005)86%£1245£395Grp 30-42£2045
HONDA CIVIC(2007)72%£1245£250Grp 25-38£2050+£5
VOLKSWAGEN TRANSPORTER(2007)75%£1245£250Grp 25-38£2050+£5
BMW 3 SERIES(2005)78%£1245£250Grp 30-42£2050+£5
FORD TRANSIT(2007)70%£1245£250Grp 25-38£2050+£5

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.

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