The 2.5-liter Renault N7U gasoline engine was produced in Sweden from 1996 to 2000 and was installed only on a restyled version of the popular Safrane model on the European market. This power unit is essentially a Volvo engine known under the index B5244S.
N-series family: N7Q, N7U.
Specifications
| Production years | 1996-2000 |
| Displacement, cc | 2435 |
| Fuel system | injector |
| Power output, hp | 165 |
| Torque output, Nm | 211 |
| Cylinder block | aluminum R5 |
| Block head | aluminum 20v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 90 |
| Compression ratio | 10.5 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 6.5 |
| Fuel type | petrol |
| Euro standards | EURO 2 |
| Fuel consumption, L/100 km (for Renault Safrane 1998) — city — highway — combined |
12.6 6.8 8.6 |
| Engine lifespan, km | ~350 000 |
| Weight, kg | 171 |
The engine was installed on:
- Renault Safrane 1 (B54) in 1996 – 2000.
Disadvantages of the Renault N7U engine
- The most famous problem with this motor is oil leakage from the oil separator;
- Also, due to clogged crankcase ventilation, a decent oil consumption may appear;
- Change the timing belt more often than the prescribed 120,000 km, since when it breaks, the valves bend;
- Do not allow the power unit to overheat, the gasket breaks through here very quickly;
- Other weak points of the engine include its supports, pump, thermostat and fuel pump.
Frequently asked questions about the Renault N7U
How much power does the Renault N7U make?
The Renault N7U develops 165 hp and 211 Nm of torque.
How much oil does the Renault N7U take and which one?
Engine oil capacity: 6.5 liters. Recommended oil: 5W-40.
Does the Renault N7U have a timing belt or chain?
The Renault N7U uses a timing belt.
Is the Renault N7U turbocharged?
No, the Renault N7U is naturally aspirated.
Does the Renault N7U need valve clearance adjustment?
No, the Renault N7U has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Renault N7U last?
The typical lifespan of the Renault N7U is ~350 000 km with proper maintenance.
What is the fuel consumption of the Renault N7U?
Renault Safrane 1998: city 12.6, highway 6.8, combined 8.6 L/100 km.
What cars was the Renault N7U installed on?
Renault Safrane 1 (B54) in 1996 - 2000.
What are the common problems of the Renault N7U?
The most famous problem with this motor is oil leakage from the oil separator. Also, due to clogged crankcase ventilation, a decent oil consumption may appear. All known problems.
What engines are related to the Renault N7U?
N-series family: N7Q.





