Mercedes-Benz Viano reliability, MPG and running costs
Figures updated
The Mercedes-Benz Viano is a car. In 2024 MOT tests it scored 117 for reliability (100 is average), ranking 161 of 442, and 34.8% failed first time against a UK average of 28.5%. Its most common MOT failure is rbt (sp) (4.1% of tests).
Ranked 161 of 442 cars in the 2024 MOT Reliability League
In 2024, 5,362 Mercedes-Benz Vianos aged 3 to 20 had an MOT and 34.8% failed first time (UK average 28.5%). Taking age and mileage into account, the Mercedes-Benz Viano is 15% less likely to fail than the average car of the same age and mileage.
First-time fail rate
34.8%
UK 28.5%
Fail rate at 3 years
–
UK 12.7%
Average miles a year
11,500
Typical age at test: 13 years
Mercedes-Benz Viano MOT failure rate by age
Most common Mercedes-Benz Viano MOT faults
- Rbt (sp): efficiency below requirements4.1% of tests
- Position lamp: not working3.5% of tests
- Side repeaters: not working3.2% of tests
- SRS malfunction indicator lamp: warning lamp indicates a fault3.1% of tests
- Rbt (sp): efficiency less than 50% of the required value2.6% of tests
- Tread depth: tread depth below requirements of 1.6mm2.6% of tests
What the Mercedes-Benz Viano fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Lights and electrics | 17.3% | About average |
| Brakes | 12.5% | 1.1× as often |
| Suspension | 9.0% | ▼ 44% less often |
| Tyres | 6.7% | ▼ 17% less often |
| Visibility | 5.5% | ▼ 13% less often |
| Body and structure | 5.1% | ▼ 25% less often |
| Exhaust and emissions | 4.6% | ▼ 18% less often |
| Seat belts and airbags | 3.9% | ▲ 2.0× as often |
| Steering | 2.8% | ▼ 25% less often |
| Wheels | 0.7% | About average |
What MPG does the Mercedes-Benz Viano do?
Official economy for the Mercedes-Benz Viano ranges from 21.4 to 38.7mpg across the 82 versions listed by the Vehicle Certification Agency (2004–2015). A typical diesel version manages 34.9mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a Mercedes-Benz Viano?
Any Mercedes-Benz Viano first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Mercedes-Benz Viano registered between March 2001 and March 2017 is taxed on its CO2: £410 to £790 a year.
Work out tax for a specific carMercedes-Benz Viano specs and running costs
Official figures for 82 versions sold in the UK between 2004 and 2015.
Fuel types
Diesel, Petrol
Official economy
21.4–38.7 mpg
CO2
192–315 g/km
| Version | Fuel | Economy | CO2 | Car tax |
|---|---|---|---|---|
| Viano Viano 2.0 CDI Trend Compact EU5A5 · listed 2015 | Diesel | 34.9 mpg | 213g | £445 |
| Viano Viano 2.0 CDI Trend Compact EU5M6 · listed 2015 | Diesel | 38.7 mpg | 192g | £410 |
| Viano Viano 2.0 CDI Trend Long EU5A5 · listed 2015 | Diesel | 34.9 mpg | 213g | £445 |
| Viano Viano 2.0 CDI Trend Long EU5M6 · listed 2015 | Diesel | 38.7 mpg | 192g | £410 |
| Viano Viano 2.2 CDI Ambiente Compact EU5A5 · listed 2015 | Diesel | 34.9 mpg | 213g | £445 |
| Viano Viano 2.2 CDI Ambiente Compact EU5M6 · listed 2015 | Diesel | 38.7 mpg | 192g | £410 |
| Viano Viano 2.2 CDI Ambiente Extra-long EU5A5 · listed 2015 | Diesel | 34.4 mpg | 216g | £445 |
| Viano Viano 2.2 CDI Ambiente Extra-long EU5M6 · listed 2015 | Diesel | 38.2 mpg | 195g | £410 |
| Viano Viano 2.2 CDI Ambiente Long EU5A5 · listed 2015 | Diesel | 34.4 mpg | 216g | £445 |
| Viano Viano 2.2 CDI Ambiente Long EU5M6 · listed 2015 | Diesel | 38.2 mpg | 195g | £410 |
| Viano Viano 2.2 CDI Trend Compact EU5A5 · listed 2015 | Diesel | 34.9 mpg | 213g | £445 |
| Viano Viano 2.2 CDI Trend Compact EU5M6 · listed 2015 | Diesel | 38.7 mpg | 192g | £410 |
| Viano Viano 2.2 CDI Trend Extra-long EU5A5 · listed 2015 | Diesel | 34.4 mpg | 216g | £445 |
| Viano Viano 2.2 CDI Trend Extra-long EU5M6 · listed 2015 | Diesel | 38.2 mpg | 195g | £410 |
| Viano Viano 2.2 CDI Trend Long EU5A5 · listed 2015 | Diesel | 34.9 mpg | 213g | £445 |
Economy and CO2 are official NEDC (before 2018) or WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement. Showing the 15 most recent of 82 versions.
What a Mercedes-Benz Viano costs to fuel
- diesel, typical official 34.9mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a Mercedes-Benz VianoBuying a used Mercedes-Benz Viano?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Other Mercedes-Benz models
Frequently asked questions
›Is the Mercedes-Benz Viano reliable?
Its MOT record is better than average: the Mercedes-Benz Viano is 15% less likely to fail than the average car of the same age and mileage, with a reliability score of 117 in our 2024 league (100 is average).
›What are common problems with the Mercedes-Benz Viano?
The most common MOT fault is “Rbt (sp): efficiency below requirements”, found in 4.1% of tests. It fails on seat belts and airbags more often than similar cars.
›What MPG does the Mercedes-Benz Viano do?
Official economy for the Mercedes-Benz Viano ranges from 21.4 to 38.7mpg across the 82 versions listed by the Vehicle Certification Agency (2004–2015). A typical diesel version manages 34.9mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a Mercedes-Benz Viano?
Any Mercedes-Benz Viano first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Mercedes-Benz Viano registered between March 2001 and March 2017 is taxed on its CO2: £410 to £790 a year.
›How many Mercedes-Benz Vianos fail their MOT?
34.8% of Mercedes-Benz Vianos aged 3 to 20 failed their MOT first time in 2024.
Sources: DVSA anonymised MOT tests 2024, all versions of the Mercedes-Benz Viano combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.