The 1.0-liter Renault B4D or 1.0 SCe engine has been produced in India and Brazil since 2015 and is installed on budget Renault and Dacia models, as well as on Nissan and Datsun under the BR10DE index. There are two modifications of the motor: SCe 70 without phase regulators, SCe 75 with phase regulators.
The SCe line: B4A, B4D, H4D, H4M, M4R, M5R, 2TR, V4U, V4Y.
Specifications
| Production years | since 2015 |
| Displacement, cc | 999 |
| Fuel system | distributed injection |
| Power output, hp | 70 (B4D LS or SCe 70) 73 (B4D HS or SCe 75) |
| Torque output, Nm | 91 (B4D LS or SCe 70) 95 (B4D HS or SCe 75) |
| Cylinder block | aluminum R3 |
| Block head | aluminum 12v |
| Cylinder bore, mm | 71 |
| Piston stroke, mm | 84.1 |
| Compression ratio | 10.5 (B4D LS or SCe 70) 11.0 (B4D HS or SCe 75) |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | no (B4D LS or SCe 70) yes (B4D HS or SCe 75) |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 3.0 |
| Fuel type | petrol |
| Euro standards | EURO 5 (B4D LS or SCe 70) EURO 6 (B4D HS or SCe 75) |
| Fuel consumption, L/100 km (for Dacia Logan 2018) — city — highway — combined |
6.1 4.4 5.0 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 67 |
The engine was installed on:
- Dacia Logan 2 (L52) in 2016 – 2020;
- Dacia Logan 2 MCV (R52) in 2016 – 2020;
- Dacia Sandero 2 (B52) in 2016 – 2020;
- Dacia Sandero 2 Stepway (B52x) in 2016 – 2020;
- Renault Kiger 1 (HBC) since 2021;
- Renault Kwid 1 (BW) since 2015;
- Renault Triber 1 (RBC) since 2019;
- Datsun redi-Go 1 (CD0) since 2016 (as BR10DE);
- Nissan Magnite 1 (DD0) since 2020 (as BR10DE);
- Nissan Micra 4 (K13) in 2015 – 2017 (as BR10DE).
Disadvantages of the Renault B4D engine
- So far, no typical malfunctions have been noted on the specialized forums;
- Keep an eye on the cooling system, as aluminum engines are afraid of overheating;
- There are no hydraulic lifters and once every 100,000 km valve clearance adjustment is required;
- Also, the owners complain about the shortage of spare parts, only consumables are easily available.
