The Renault B4D engine, also known as the 1.0 SCe, has been available since 2015 and is fitted to budget Renault and Dacia models, as well as Nissan and Datsun cars under the BR10DE index. This engine is characterized by high efficiency and simplicity of construction, which makes it popular among low-cost car models. The engine is produced in India and Brazil and is designed mainly for markets with developing infrastructure.
The B4D engine is available in two modifications:
- SCe 70 (modification B4D LS): basic version without phase controllers.
- SCe 75 (modification B4D HS): improved version with phasoregulators on inlet and outlet.
Renault B4D 1.0 SCe engine specification.
| Characteristics | SCe 70 (B4D LS) | SCe 75 (B4D HS) |
|---|---|---|
| Precise volume | 999 cm³ | 999 cm³ |
| Power system | distributed injection | distributed injection |
| Engine power | 70 hp | 73 hp |
| Torque | 91 Nm | 95 Nm |
| Cylinder block | aluminum R3 | aluminum R3 |
| Cylinder head | aluminum 12v | aluminum 12v |
| Cylinder diameter | 71 mm | 71 mm |
| Piston stroke | 84.1 mm | 84.1 mm |
| Compression ratio | 10.5 | 11.0 |
| Transmission timing | chain | chain |
| Fasoregulator | absent | inlet and outlet |
| Turbocharger | no | no |
| Environmental class | EURO 5 | EBRO 6 |
| Engine Oil | 3.0 liter 5W-40 | 3.0 liter 5W-40 |
| Example service life | 300,000 km | 300,000 km |
| Engine weight | 67 kg | 67 kg |
Models on which the B4D 1.0 engine is installed
B4D 1.0 engine is widely used on budget models of Renault, Dacia, Nissan and Datsun:
- Dacia Logan 2 (L52) – 2016-2020
- Logan 2 MCV (R52) – 2016-2020
- Logan 3 (LJI) – 2020-now
- Sandero 2 (B52) – 2016-2020
- Sandero 2 Stepway (B52x) – 2018-2020
- Sandero 3 (BJI) – 2020-present
- Renault Kiger 1 (HBC) – 2021-present.
- Renault Kwid 1 (BW) – 2015-present.
- Renault Triber 1 (RBC) – 2019-present.
- Renault Twingo 3 (C07) – 2019-present.
- Datsun redi-Go 1 (CD0) – 2016-present.
- Nissan Magnite 1 (DD0) – 2020-present.
- Nissan Micra 4 (K13) – 2015-2017
Benefits and disadvantages of the B4D engine
Advantages:
- Economy: The engine is characterized by low fuel consumption, especially in urban environments.
- Reliability of construction: A simple atmospheric motor with minimal complex mechanisms.
- Low weight: The engine weighs only 67 kg, which has a positive effect on vehicle dynamics and economy.
Disadvantages and problems:
- Lack of hydrocompensators: The engine lacks hydrocompensators, which requires periodic adjustment of valve clearances every 100,000 km.
- Sensitivity to overheating: Aluminum cylinder blocks are prone to overheating, which requires special attention to the cooling system.
- Spares shortage: In some markets, owners complain about the lack of availability of spare parts, although consumables (filters, plugs, etc.) are readily available.
How reliable is the Renault B4D engine?
The Renault B4D engine is a good option for budget cars, thanks to its simplicity and economy. However, the lack of hydrocompensators and the need to keep an eye on cooling are important points for owners.