VQ35HR Engine Service Repair Manual
Nissan / Infiniti VQ35HR Engine Service Repair Manual is a comprehensive repair and maintenance guide for the VQ35HR engine found in a variety of Nissan and Infiniti models. Includes detailed component diagrams such as the VVEL system, pistons, camshafts and cooling system. Covers instructions for fault diagnosis, replacement parts and routine maintenance, making it ideal for garages and owners looking to keep their engine in top condition and ensure its longevity.
Key Features of the VQ35HR
Volume: 3.5 liters
Power: from 306 to 330 hp, depending on the model and settings
Torque: up to 366 Nm
Design type: DOHC (double overhead camshaft) with 24 valves
Intake system: VVEL (Variable Valve Event & Lift) - variable valve lift technology for improved gas response and fuel economy
Maximum speed: up to 7500 rpm
What cars was the VQ35HR installed on?
- Nissan 350Z, Fuga, Skyline, Cima,
- Infiniti G35, EX35, M35, Q70, Q50, M Hybrid HY51.
- Mitsubishi Dignity
Infiniti M Hybrid (HY51) VQ35HR
| Infiniti M Hybrid (HY51) 2013 Engine Cooling System | Download |
| Infiniti M Hybrid (HY51) 2013 Engine Control System | Download |
| Infiniti M Hybrid (HY51) 2013 Engine Mechanical | Download |
| Infiniti M Hybrid (HY51) 2013 Exhaust System | Download |
| Infiniti M Hybrid (HY51) 2013 Fuel System | Download |
| Infiniti M Hybrid (HY51) 2013 Engine Lubrication System | Download |
| Infiniti M Hybrid (HY51) 2013 Hybrid Control System | Download |
| Infiniti M Hybrid (HY51) 2013 Traction Motor System | Download |
| Infiniti M Hybrid (HY51) 2013 Accelerator Control System | Download |
VQ35HR Common Problems and Maintenance:
The VQ35HR is a high-performance 3.5-liter V6 engine from Nissan's VQ series. The engine was developed with an emphasis on power, reliability and fuel economy, and is used in a variety of Nissan and Infiniti models, including sports cars and luxury vehicles.
Overheating
Due to high power, overheating may occur. Regular inspection and cleaning of the radiator is recommended.
Increased oil consumption
Often observed in engines with high mileage. It is recommended to use quality oils and monitor the level.
Noises at high speeds
Noises may occasionally occur due to the load on engine components. Regular maintenance helps to avoid problems.
VVEL system problems
Requires maintenance and periodic diagnostics to ensure optimal operation.
Features and Benefits:
Increased Power and Efficiency: The VQ35HR features upgraded pistons, an improved intake system and a new exhaust manifold for increased power and fuel efficiency.
Cooling System: Improved to prevent overheating under high load conditions.
VVEL Technology: Improves throttle response, increases fuel economy and reduces emissions.