The 1.5-liter naturally aspirated Suzuki K15C has been built in Japan since 2022 for hybrid versions of the S-Cross, Vitara, Grand Vitara, Brezza, Ertiga and other models. In Asia it is offered as a mild hybrid and in Europe as a full hybrid; the engine produces 99-103 hp.
K-series family: K6A, K10A, K10B, K12B, K14C, K14B, K15B, K12A, K12C, K12D, K10C, K15C.
Specifications
| Production years | since 2022 |
| Displacement, cc | 1462 |
| Fuel system | distributed injection |
| Power output, hp | 99 – 103 |
| Torque output, Nm | 132 – 138 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 74 |
| Piston stroke, mm | 85 |
| Compression ratio | 12.0 – 13.0 |
| Features | DOHC, Dualjet |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual VVT |
| Turbocharging | no |
| Recommended engine oil | 0W-20 |
| Engine oil capacity, liter | 3.6 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Suzuki S-Cross 2023) — city — highway — combined |
7.0 5.4 5.8 |
| Engine lifespan, km | ~240 000 |
| Weight, kg | 82 |
The engine was installed on:
- Suzuki Brezza 2 (YH) since 2022;
- Suzuki Ertiga 2 (NC) since 2022;
- Suzuki Fronx 1 (WDB) since 2023;
- Suzuki Grand Vitara 3 (YK) since 2022;
- Suzuki SX4 3 (JYB) since 2022;
- Suzuki Vitara 4 (LY) since 2022;
- Suzuki XL6 1 (NC) since 2022.
Disadvantages of the Suzuki K15C engine
- Despite its short history, it has a poor reputation because of numerous hybrid system failures in 2022-2023;
- The complaints concern the hybrid system; the engine itself causes no trouble, and the problems are gradually being solved;
- Outside the main markets, spare parts and used engines are hard to find.
Frequently asked questions about the Suzuki K15C
How much power does the Suzuki K15C make?
The Suzuki K15C develops 99 - 103 hp and 132 - 138 Nm of torque.
How much oil does the Suzuki K15C take and which one?
Engine oil capacity: 3.6 liters. Recommended oil: 0W-20.
Does the Suzuki K15C have a timing belt or chain?
The Suzuki K15C uses a timing chain.
Is the Suzuki K15C turbocharged?
No, the Suzuki K15C is naturally aspirated.
Does the Suzuki K15C need valve clearance adjustment?
No, the Suzuki K15C has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Suzuki K15C last?
The typical lifespan of the Suzuki K15C is ~240 000 km with proper maintenance.
What is the fuel consumption of the Suzuki K15C?
Suzuki S-Cross 2023: city 7.0, highway 5.4, combined 5.8 L/100 km.
What cars was the Suzuki K15C installed on?
Suzuki Brezza 2 (YH) since 2022; Suzuki Ertiga 2 (NC) since 2022; Suzuki Fronx 1 (WDB) since 2023; Suzuki Grand Vitara 3 (YK) since 2022; Suzuki SX4 3 (JYB) since 2022; Suzuki Vitara 4 (LY) since 2022 and 1 more (see the full list above).
What are the common problems of the Suzuki K15C?
Despite its short history, it has a poor reputation because of numerous hybrid system failures in 2022-2023. The complaints concern the hybrid system; the engine itself causes no trouble, and the problems are gradually being solved. All known problems.
