The 1.2-liter pushrod engine Renault C3G was built at Cléon from 1990 to 1997 for the Clio, Express and first-generation Twingo. It has single-point injection and produces 54-55 hp; the carburetor version was called C1G.
C-type family: C3G, C3J.
Specifications
| Production years | 1990-1997 |
| Displacement, cc | 1239 |
| Fuel system | single injection |
| Power output, hp | 54 – 55 |
| Torque output, Nm | 90 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 74 |
| Piston stroke, mm | 72 |
| Compression ratio | 9.2 |
| Features | OHV |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 10W-40 |
| Engine oil capacity, liter | 3.5 |
| Fuel type | petrol |
| Euro standards | EURO 1 |
| Fuel consumption, L/100 km (for Renault Twingo 1995) — city — highway — combined |
7.7 5.3 6.2 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 135 |
The engine was installed on:
- Renault Clio 1 (X57) in 1990 – 1996;
- Renault Express 1 (X40) in 1995 – 1997;
- Renault Twingo 1 (C06) in 1992 – 1996.
Disadvantages of the Renault C3G engine
- A reliable engine whose problems are typical of any old engine;
- The single-point injector has to be cleaned regularly and its gasket replaced;
- Electrical faults are frequent;
- The timing chain does not last long and is often replaced at 150,000-200,000 km;
- Constant oil leaks from gaskets and seals.
Frequently asked questions about the Renault C3G
How much power does the Renault C3G make?
The Renault C3G develops 54 - 55 hp and 90 Nm of torque.
How much oil does the Renault C3G take and which one?
Engine oil capacity: 3.5 liters. Recommended oil: 10W-40.
Does the Renault C3G have a timing belt or chain?
The Renault C3G uses a timing chain.
Is the Renault C3G turbocharged?
No, the Renault C3G is naturally aspirated.
Does the Renault C3G 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 C3G last?
The typical lifespan of the Renault C3G is ~300 000 km with proper maintenance.
What is the fuel consumption of the Renault C3G?
Renault Twingo 1995: city 7.7, highway 5.3, combined 6.2 L/100 km.
What cars was the Renault C3G installed on?
Renault Clio 1 (X57) in 1990 - 1996; Renault Express 1 (X40) in 1995 - 1997; Renault Twingo 1 (C06) in 1992 - 1996.
What are the common problems of the Renault C3G?
A reliable engine whose problems are typical of any old engine. The single-point injector has to be cleaned regularly and its gasket replaced. All known problems.
What engines are related to the Renault C3G?
C-type family: C3J.
