5BA-AAZA20
Lexus NX250 AAZA20 specs
AAZA20 is the model code of the Lexus NX250. Japan’s transport ministry lists it in its fuel economy lists from 2022–2025 under the model type 5BA-AAZA20. A genuine car’s chassis number starts AAZA20-.
AAZA20 at a glance
- Make
- Lexus
- Model
- NX250
- Model code
- AAZA20
- Model types
- 5BA-AAZA20
- In MLIT’s lists
- 2022–2025
- Engines
- A25A 2,487 cc petrol
- Gearboxes
- 8-speed automatic
- Drive
- front-wheel drive
- Kerb weight
- 1,620–1,690 kg
- Official fuel economy
- 13.9–14.4 km/L (39–41 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-AAZA20
Listed 2022–2025. 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-AAZA20 against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| A25A2,487 cc petrol | 8-speed automatic | front-wheel drive | 1,620–1,690 kg | 5 | 13.9–14.4 km/L39–41 mpg, WLTC test | 2022–2025 |
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.
Check an AAZA20 before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start AAZA20-, 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 Lexus NX250 model codes
Questions
What engine does the AAZA20 have?
MLIT lists the Lexus NX250 AAZA20 with A25A 2,487 cc petrol.
What fuel economy does the AAZA20 get?
Officially between 13.9 and 14.4 km/L (about 39–41 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 AAZA20?
Between 1,620 and 1,690 kg kerb weight, depending on the version.
Is 5BA-AAZA20 the same as AAZA20?
Yes. 5BA-AAZA20 is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and AAZA20 is the model code. The chassis number starts with AAZA20-.
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 Lexus 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.