4AA-WDB3S
Suzuki Fronx WDB3S specs
WDB3S is the model code of the Suzuki Fronx. Japan’s transport ministry lists it in its fuel economy lists from 2025–2026 under the model type 4AA-WDB3S. A genuine car’s chassis number starts WDB3S-.
WDB3S at a glance
- Make
- Suzuki
- Model
- Fronx
- Model code
- WDB3S
- Model types
- 4AA-WDB3S
- In MLIT’s lists
- 2025–2026
- Engines
- K15C 1,460 cc petrol
- Gearboxes
- 6-speed automatic
- Drive
- front-wheel drive
- Kerb weight
- 1,070 kg
- Official fuel economy
- 19–21.3 km/L (54–60 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.
4AA-WDB3S
Listed 2025–2026. The 4AA prefix (our explanation, not MLIT’s) means hybrid passenger car certified to Japan’s 2018 emissions rules, 25% below their limits. Check 4AA-WDB3S against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| K15C1,460 cc petrol | 6-speed automatic | front-wheel drive | 1,070 kg | 5 | 21.3 km/L60 mpg, Japanese JC08 test | 2025–2026 |
| K15C1,460 cc petrol | 6-speed automatic | front-wheel drive | 1,070 kg | 5 | 19 km/L54 mpg, WLTC test | 2025–2026 |
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.
Check a WDB3S before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start WDB3S-, 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 Suzuki Fronx model codes
Questions
What engine does the WDB3S have?
MLIT lists the Suzuki Fronx WDB3S with K15C 1,460 cc petrol.
What fuel economy does the WDB3S get?
Officially between 19 and 21.3 km/L (about 54–60 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 WDB3S?
1,070 kg kerb weight.
Is 4AA-WDB3S the same as WDB3S?
Yes. 4AA-WDB3S is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and WDB3S is the model code. The chassis number starts with WDB3S-.
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 Suzuki 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.