5BA-MXPC12G
Toyota Sienta MXPC12G specs
MXPC12G is the model code of the Toyota Sienta. Japan’s transport ministry lists it in its fuel economy lists from 2023–2026 under the model type 5BA-MXPC12G. A genuine car’s chassis number starts MXPC12-.
MXPC12G at a glance
- Make
- Toyota
- Model
- Sienta
- Model code
- MXPC12G
- Model types
- 5BA-MXPC12G
- In MLIT’s lists
- 2023–2026
- Engines
- M15A 1,490 cc petrol
- Gearboxes
- CVT automatic
- Drive
- front-wheel drive
- Kerb weight
- 1,330–1,350 kg
- Official fuel economy
- 18 km/L (51 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.
5BA-MXPC12G
Listed 2023–2026. The 5BA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2018 emissions rules, 50% below their limits. Check 5BA-MXPC12G against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| M15A1,490 cc petrol | CVT automatic | front-wheel drive | 1,330–1,350 kg | 5 | 18 km/L51 mpg, WLTC test | 2023–2026 |
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.
MXPC12 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 |
|---|---|
| 2022 | MXPC12-1000000 to 1000502 |
| 2023 | MXPC12-1000501 to 1001591 |
| 2024 | MXPC12-1001592 to 1002694 |
| 2025 | MXPC12-1002695 to 1003707 |
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 an MXPC12G before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start MXPC12-, 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 Toyota Sienta model codes
Questions
What engine does the MXPC12G have?
MLIT lists the Toyota Sienta MXPC12G with M15A 1,490 cc petrol.
What fuel economy does the MXPC12G get?
Officially 18 km/L (about 51 mpg), on Japan’s own tests. Real-world figures are usually lower, especially against the older 10-15 mode test.
How heavy is the MXPC12G?
Between 1,330 and 1,350 kg kerb weight, depending on the version.
Is 5BA-MXPC12G the same as MXPC12G?
Yes. 5BA-MXPC12G is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and MXPC12G is the model code. The chassis number starts with MXPC12-.
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 Toyota 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.