The 1.4-liter Suzuki K14C DITC or Boosterjet 1.4 turbo engine has been produced since 2015 and is installed on popular models of the Japanese company, such as the SX4, Vitara and Swift in the Sport version. Now this power unit is gradually being replaced by a hybrid modification under the symbol K14D.
Engines of the K-series: K6A, K10A, K10B, K12B, K14C, K14B, K15B.
Specifications
| Production years | since 2015 |
| Displacement, cc | 1373 |
| Fuel system | direct injection |
| Power output, hp | 135 – 140 |
| Torque output, Nm | 210 – 230 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 73 |
| Piston stroke, mm | 82 |
| Compression ratio | 9.9 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | at the intake |
| Turbocharging | MHI TD02L11-025 (there are versions with IHI turbine) |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.3 |
| Fuel type | petrol |
| Euro standards | EURO 5/6 |
| Fuel consumption, L/100 km (for Suzuki Vitara 2018) — city — highway — combined |
6.2 4.7 5.2 |
| Engine lifespan, km | ~250 000 |
The engine was installed on:
- Suzuki SX4 2 (JY) since 2016;
- Suzuki Swift 5 (RZ) in 2018 – 2020;
- Suzuki Vitara 4 (LY) since 2015.
Disadvantages of the Suzuki K14C engine
- This motor has been produced for more than five years and so far has not been noted for any special problems;
- The presence of direct injection here contributes to the formation of carbon deposits on the intake valves;
- The turbine is still serving normally and cases of its rapid failure are still rare;
- On specialized forums there are complaints about the timing chain stretching on runs of 100 – 150 thousand km;
- Monitor the condition of the cooling system, the aluminum engine does not tolerate overheating.
The carbon buildup seems to be constant over wide range of mileage. I have looked at disasembled engines that had 50k km and in 150k+ and it seemed almost identical (all engines serviced and maintained properly).