The 1.0-liter Renault H4D or 1.0 SCe engine has been produced at the plant in Brazil since 2014 and is used in models such as the Clio and Twingo, as well as the third generation Dacia Logan and Sandero. This power unit on a car from Nissan is known as HR10DE, and on Smart under the symbol M281.
SCe family: B4A, B4D, H4D, H4M, M4R, M5R, 2TR, V4U, V4Y.
Specifications
| Production years | since 2014 |
| Displacement, cc | 999 |
| Fuel system | distributed injection |
| Power output, hp | 61 – 73 |
| Torque output, Nm | 91 – 95 |
| Cylinder block | aluminum R3 |
| Block head | aluminum 12v |
| Cylinder bore, mm | 72.2 |
| Piston stroke, mm | 81.3 |
| Compression ratio | 10.5 |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | at the intake |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.0 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Renault Twingo 2017) — city — highway — combined |
5.6 3.9 4.5 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 81 |
The engine was installed on:
- Renault Clio 5 (BF) since 2019;
- Renault Twingo 3 (C07) since 2014;
- Dacia Logan 3 (LJI) since 2020;
- Dacia Sandero 3 (BJI) since 2020;
- Nissan Micra 5 (K14) in 2017 – 2019 (as HR10DE);
- Smart Fortwo 3 (C453) in 2014 – 2019 (as M281);
- Smart Forfour 2 (W453) in 2014 – 2019 (as M281).
Disadvantages of the Renault H4D engine
- The main thing is to monitor the cooling system, and especially with the rear engine;
- On specialized forums, you can find a couple of cases of replacing the timing chain on a run of about 100,000 km;
- After 100 thousand km, oil consumption occurs due to the occurrence of oil scraper rings;
- There are no hydraulic lifters and every 100,000 km you have to adjust the valve clearance.
Frequently asked questions about the Renault H4D
How much power does the Renault H4D make?
The Renault H4D develops 61 - 73 hp and 91 - 95 Nm of torque.
How much oil does the Renault H4D take and which one?
Engine oil capacity: 3.0 liters. Recommended oil: 5W-30.
Does the Renault H4D have a timing belt or chain?
The Renault H4D uses a timing chain.
Is the Renault H4D turbocharged?
No, the Renault H4D is naturally aspirated.
Does the Renault H4D need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Renault H4D last?
The typical lifespan of the Renault H4D is ~250 000 km with proper maintenance.
What is the fuel consumption of the Renault H4D?
Renault Twingo 2017: city 5.6, highway 3.9, combined 4.5 L/100 km.
What cars was the Renault H4D installed on?
Renault Clio 5 (BF) since 2019; Renault Twingo 3 (C07) since 2014; Dacia Logan 3 (LJI) since 2020; Dacia Sandero 3 (BJI) since 2020; Nissan Micra 5 (K14) in 2017 - 2019 (as HR10DE); Smart Fortwo 3 (C453) in 2014 - 2019 (as M281) and 1 more (see the full list above).
What are the common problems of the Renault H4D?
The main thing is to monitor the cooling system, and especially with the rear engine. On specialized forums, you can find a couple of cases of replacing the timing chain on a run of about 100,000 km. All known problems.
