2004 Mercedes-Benz Viano · 1,092 MOT tests
2004 Mercedes-Benz Viano reliability
2004 Mercedes-Benz Vianos fail 34.8% of first MOT tests, 19% fewer MOT fails than the average car its age and mileage, ranking 2 of 11 Viano years (1,092 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz Vianos: 33.6%)
- 34.8%
- first-time fail rate (all Mercedes-Benz Vianos: 33.6%)
- fails than cars of the same age and mileage
- 19% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 19
- 98,989
- typical miles at its MOT, aged about 19
- MOT tests, 2022 to 2024
- 1,092
- MOT tests, 2022 to 2024
Year on year
2004 against the years either side
- 2005 cars: 10% fewer MOT fails than the average car its age (the 2004 car does better)
- Weak spot: seat belts and airbags, 8.3% of tests fail here (165% above cars of the same age and mileage).
- Strong point: exhaust, emissions and leaks, 53% fewer fails than comparable cars.
- Plates: a 2004 car carries a 53 plate (January–February 2004), or a 04 plate (March–August 2004), or a 54 plate (September–December 2004).
Common problems
What fails on a 2004 Mercedes-Benz Viano
Fail rate by area
- Lights and electrics17.9%
- Suspension14.5%
- Brakes11.2%
- Body, chassis and structure8.8%
- Seat belts and airbags8.3%
- Windscreen, wipers and mirrors7.1%
- Steering5.5%
Average for cars of the same age and mileage
Top failures
Suspension mounting area seriously corroded 5.59%
Corrosion near suspension mountings can seriously weaken the body structure, so an expert inspection is needed.
Airbag warning lamp shows fault 4.4%
A lit airbag warning means the airbag system may not deploy in a crash, so it needs diagnosing and repairing.
Headlamp beam pattern obviously incorrect 3.85%
A wrongly shaped beam can dazzle other drivers and reduce your own view of the road, so the lamps need correcting.
Position lamp not working 2.66%
A failed position lamp makes the car harder to see in poor light and is illegal, so it must be repaired.
Rigid brake pipe excessively corroded 2.47%
Badly corroded brake pipes can leak or fail, which can cause a loss of braking, so repair is urgent.
Wiper blade not clearing windscreen 2.38%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Common advisories
Tyre worn close to legal limit (13.28%) · Brake pipes corroded and greasy (13%) · Brake disc pitted or scored (7.69%) · Flexible brake hose slightly deteriorated (6.96%) · Engine oil leak, not excessive (6.78%) · Slight play in steering rack joints (4.3%)
Other years
Every Mercedes-Benz Viano year
The full picture: Mercedes-Benz Viano reliability. Before you pay for any Mercedes-Benz Viano, a Full Check (£9.99) shows finance, stolen and write-off records the MOT can't.
Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2004 Mercedes-Benz Viano reliable?
2004 Mercedes-Benz Vianos fail 34.8% of first MOT tests, 19% fewer MOT fails than the average car its age and mileage, ranking 2 of 11 Viano years (1,092 DVSA tests, 2022 to 2024).
What fails on a 2004 Mercedes-Benz Viano MOT?
Most often suspension mounting area seriously corroded (5.59% of tests), airbag warning lamp shows fault (4.4% of tests), headlamp beam pattern obviously incorrect (3.85% of tests).
How many miles should a 2004 Mercedes-Benz Viano have done?
At its MOT aged about 19, a typical 2004 Mercedes-Benz Viano shows 98,989 miles. Much higher or lower is worth asking about.
What plate is a 2004 car?
A car first registered in 2004 carries a 53 plate (January–February 2004), or a 04 plate (March–August 2004), or a 54 plate (September–December 2004).
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