DBA-BY51
Mitsubishi Proudia BY51 specs
BY51 is the model code of the Mitsubishi Proudia. Japan’s transport ministry lists it in its fuel economy lists from 2013–2019 under the model type DBA-BY51. A genuine car’s chassis number starts BY51-.
BY51 at a glance
- Make
- Mitsubishi
- Model
- Proudia
- Model code
- BY51
- Model types
- DBA-BY51
- In MLIT’s lists
- 2013–2019
- Engines
- VQ25 2,495 cc petrol
- Gearboxes
- 7-speed automatic
- Drive
- rear-wheel drive
- Kerb weight
- 1,690–1,770 kg
- Official fuel economy
- 11–11.2 km/L (31–32 mpg)
Fuel economy is from Japan’s official tests and is usually better than you’ll see on UK roads. MLIT doesn’t list power or torque.
DBA-BY51
Listed 2013–2019. The DBA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2005 emissions rules, 75% below their limits. Check DBA-BY51 against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| VQ252,495 cc petrol | 7-speed automatic | rear-wheel drive | 1,690–1,770 kg | 5 | 11–11.2 km/L31–32 mpg, Japanese JC08 test | 2013–2019 |
Each row is one version as MLIT lists it. A version can appear twice when MLIT gave figures on two tests that year. Low-emission stars and trim names aren’t shown. MLIT gives fuel economy in km/L; the mpg figures are our conversion to UK gallons. Japanese tests are gentler than real UK driving, so expect less.
BY51 build year by chassis number
Japan’s carmakers list the chassis numbers each code was built with every year from 2015. Find the serial below, or use the build year finder.
| Built | Chassis numbers |
|---|---|
| 2015 | BY51-400003 to 401313BY51-450001 to 450044 |
| 2016 | BY51-450045 to 451001 |
| 2017 | BY51-480001 to 480114 |
| 2018 | BY51-490001 to 490301 |
From the JAMA chassis number lists: 車台番号一覧表. We keep only the chassis code, serial ranges and year. JAMA calls them reference information, not a certificate.
Check a BY51 before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start BY51-, and the engine and gearbox should match one of the versions above. Our free check reads the UK MOT history and compares it with the chassis code.
Other Mitsubishi Proudia model codes
Questions
What engine does the BY51 have?
MLIT lists the Mitsubishi Proudia BY51 with VQ25 2,495 cc petrol.
What fuel economy does the BY51 get?
Officially between 11 and 11.2 km/L (about 31–32 mpg), depending on the version, on Japan’s own tests. Real-world figures are usually lower, especially against the older 10-15 mode test.
How heavy is the BY51?
Between 1,690 and 1,770 kg kerb weight, depending on the version.
Is DBA-BY51 the same as BY51?
Yes. DBA-BY51 is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and BY51 is the model code. The chassis number starts with BY51-.
About these figures
The model types, engine codes, capacities, gearboxes, drive, weights, seats and km/L figures are copied from MLIT’s yearly lists of cars on sale in Japan each March, so “listed” years are list years, not exact production dates. The English model names, mpg conversions, emissions code explanations and chassis number matching are ours. Lists before 2013 were printed as PDFs that we read by machine; where an older list gives an engine code that doesn’t match its capacity, we’ve used the figure the same model type has in other years. Check anything that matters against the car’s own papers. Spotted a mistake? Email [email protected]. All Mitsubishi model codes.
Source: Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Japan, fuel economy lists 2004–2026, used under the Public Data License 1.0. Edited and translated by JDM History.