ABA-RB21S · CBA-RB21S · LA-RB21S · UA-RB21S
Suzuki Aerio RB21S specs
RB21S is the model code of the Suzuki Aerio. Japan’s transport ministry lists it in its fuel economy lists from 2004–2007 under 4 model types ABA-RB21S, CBA-RB21S, LA-RB21S, UA-RB21S. A genuine car’s chassis number starts RB21S-.
RB21S at a glance
- Make
- Suzuki
- Model
- Aerio
- Model code
- RB21S
- Model types
- ABA-RB21S, CBA-RB21S, LA-RB21S, UA-RB21S
- In MLIT’s lists
- 2004–2007
- Engines
- M15A 1,490 cc petrol
- Gearboxes
- 4-speed automatic, 5-speed manual
- Drive
- four-wheel drive, front-wheel drive
- Kerb weight
- 1,150–1,230 kg
- Official fuel economy
- 14.4–18 km/L (41–51 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.
ABA-RB21S
Listed 2005–2007. The ABA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2005 emissions rules. Check ABA-RB21S against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| M15A1,490 cc petrol | 4-speed automatic | four-wheel drive | 1,230 kg | — | 14.4 km/L41 mpg, Japanese 10-15 mode test | 2005–2007 |
CBA-RB21S
Listed 2005–2007. The CBA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2005 emissions rules, 50% below their limits. Check CBA-RB21S against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| M15A1,490 cc petrol | 4-speed automatic | front-wheel drive | 1,160–1,170 kg | — | 16.2 km/L46 mpg, Japanese 10-15 mode test | 2005–2007 |
| M15A1,490 cc petrol | 5-speed manual | four-wheel drive | 1,220 kg | — | 16 km/L45 mpg, Japanese 10-15 mode test | 2005 |
| M15A1,490 cc petrol | 5-speed manual | front-wheel drive | 1,150–1,160 kg | — | 18 km/L51 mpg, Japanese 10-15 mode test | 2005 |
LA-RB21S
Listed 2004. The LA prefix (our explanation, not MLIT’s) means certified to Japan’s 2000 emissions rules, 50% below their limits. Check LA-RB21S against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| M15A1,490 cc petrol | 4-speed automatic | four-wheel drive | 1,230 kg | — | 14.4 km/L41 mpg, Japanese 10-15 mode test | 2004 |
UA-RB21S
Listed 2004. The UA prefix (our explanation, not MLIT’s) means certified to Japan’s 2000 emissions rules, 75% below their limits. Check UA-RB21S against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| M15A1,490 cc petrol | 4-speed automatic | front-wheel drive | 1,160–1,170 kg | — | 16.2 km/L46 mpg, Japanese 10-15 mode test | 2004 |
| M15A1,490 cc petrol | 5-speed manual | four-wheel drive | 1,220 kg | — | 16 km/L45 mpg, Japanese 10-15 mode test | 2004 |
| M15A1,490 cc petrol | 5-speed manual | front-wheel drive | 1,150–1,160 kg | — | 18 km/L51 mpg, Japanese 10-15 mode test | 2004 |
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 RB21S before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start RB21S-, 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 Aerio model codes
Questions
What engine does the RB21S have?
MLIT lists the Suzuki Aerio RB21S with M15A 1,490 cc petrol.
What fuel economy does the RB21S get?
Officially between 14.4 and 18 km/L (about 41–51 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 RB21S?
Between 1,150 and 1,230 kg kerb weight, depending on the version.
Is ABA-RB21S the same as RB21S?
Yes. ABA-RB21S is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and RB21S is the model code. The chassis number starts with RB21S-.
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.