Nissan 350Z VQ35HR

The Nissan 350Z VQ35HR has a reliability score of 68/100, rated "SOLID". Great engine, oil consumption demands your attention

The most frequently reported issues are Excessive Oil Consumption, CVTCS VTC Actuator Magnet Contamination, Catalytic Converter Degradation, Engine Overheating and Cooling System Stress, among others. See the Known Issues section above for symptoms, affected mileage, and repair costs.

Yes, this is a documented issue on the VQ35HR, typically appearing around 60,000-150,000 km. The VQ35HR is widely reported by the community to suffer from significant oil consumption. Nissan acknowledged the issue to the extent of covering engine replacements in documented cases. Regular top-ups between service intervals are often necessary, and neglecting oil levels can lead to accelerated wear or catastrophic engine failure. Typical repair cost: €2,000-8,000. DIY difficulty: Easy to monitor, hard to fix.

Yes, this is a documented issue on the VQ35HR, typically appearing around 80,000-160,000 km. The variable valve timing system (CVTCS) on the VQ35HR is known to suffer from metal particle contamination on the VTC actuator magnets. This disrupts proper cam phasing, leading to rough idle, loss of power and potential check engine lights. Forum sources specifically highlight this as a known VQ35HR weakness requiring periodic cleaning. Typical repair cost: €300-900. DIY difficulty: Moderate.

Yes, this is a documented issue on the VQ35HR, typically appearing around 100,000-180,000 km. Forum data referencing the VQ35DE family (closely related to the HR) flags catalytic converter failure as a known issue. Given the shared architecture and oil consumption tendencies of the VQ35HR, oil burning accelerates catalyst contamination and breakdown, leading to clogging or complete failure. Typical repair cost: €800-2,500. DIY difficulty: Hard.

Yes, this is a documented issue on the VQ35HR, typically appearing around 80,000-150,000 km. NHTSA complaints include a 2006 350Z overheating, smoking, and stalling at low speed. The internal water pump driven by the timing chain is a design characteristic of the VQ family; if the timing chain system is not maintained, pump efficiency can degrade. Overheating events can cause serious engine damage. Typical repair cost: €400-1,500. DIY difficulty: Moderate.

Yes, this is a documented issue on the VQ35HR, typically appearing around 50,000-120,000 km. An NHTSA complaint documents a 2006 350Z where both the accelerator and brake pedals became unresponsive while driving at 70 mph. This suggests potential electronic throttle control or brake system interaction issues that warrant inspection on any used example. This is an isolated complaint rather than a widespread pattern, but worth checking given the safety implications. Typical repair cost: €200-800. DIY difficulty: Hard.

Yes, this is a documented issue on the VQ35HR, typically appearing around 80,000-160,000 km. NHTSA data includes a complaint of airbag sensor failure causing a warning light, alongside TPMS sensor failure. These are common age-related electrical issues on Z33 examples of this vintage. Typical repair cost: €150-600. DIY difficulty: Moderate.

The VQ35HR in the Z33 facelift 350Z is a rewarding performance engine with genuine longevity when properly maintained, but oil consumption is a documented and widespread issue that you must budget for and actively manage. Always buy with a full service history showing short oil change intervals and synthetic oil use, a neglected example with unknown oil top-up history is a serious gamble. Factor in the cost of a pre-purchase inspection including a VTC actuator check and fault code scan. A well-maintained, honest-history example is a solid buy, a mystery-history example at a bargain price is a potential money pit.

Do not treat the Nismo's higher output as a reliability difference, it is the same core VQ35HR block with a sportier exhaust and ECU calibration, so it carries the identical oil consumption and VTC actuator risks as the standard tune. Choose based on service history and documented oil top-up discipline rather than power figure. A standard 306hp car with full synthetic oil records and a clean VTC scan is a safer buy than a Nismo with unknown maintenance history.

Before buying, check: Pull the dipstick and check oil level and condition, low or black oil with no service record is a red flag; Scan with OBD2 for VTC, camshaft, throttle, SRS, and O2/catalyst fault codes before purchase; Cold-start the engine and listen for timing chain rattle or VTC actuator noise in the first 30 seconds; Check coolant level, colour, and look for signs of overheating history such as staining or a warped coolant reservoir; Verify full service history with oil change receipts, synthetic oil and short intervals are essential on this engine.

There's no fixed mileage limit, it depends on maintenance. The parts worth budgeting for proactively are: VTC Actuator / CVTCS Magnets (80,000 km), Timing Chain and Internal Water Pump (120,000 km), Catalytic Converters (120,000 km), Engine Oil Level (Ongoing from purchase). Engines that clear these checkpoints with documented maintenance commonly continue well beyond typical ownership periods.

Certain aftermarket ZF clutch kit assemblies (part number SX: K70358-01) shipped as service parts between September 1, 2010 and the recall date may be defective, potentially causing clutch failure. Remedy: Recall of affected clutch kit assemblies supplied to wholesalers. Owners who had this specific part fitted should verify with a Nissan dealer whether their vehicle is affected.

Estimated ownership cost is €2,500-6,000 over 3 years depending on oil consumption severity, maintenance diligence, and whether VTC or catalytic converter work is required, based on known issues and typical service needs.

Owners report real-world fuel consumption of around 12 L/100km.

Community-reported real-world usage suggests changing oil every 5,000 km using 5W-40 full synthetic (e.g. Liqui Moly 5W-40); check level every 1,000-1,500 km due to known consumption, often more conservative than the official service schedule.

The VQ35HR is also found in: Nissan 350Z Z33 facelift, other trims (Enthusiast, Touring, Grand Touring, Nismo, 2007-2009), Infiniti G35 Sedan/Coupe (2007-2008, VQ35HR), Infiniti EX35 (2008-2013, VQ35HR, lower output tune), Infiniti FX35 (2009-2012, VQ35HR).

Mixed-positive. Enthusiasts love the engine's character and response, and praise its tuning potential. However, oil consumption is a recurring and well-documented complaint across multiple communities, and several owners have had to escalate issues directly to Nissan for resolution. Those who maintain it properly report long-term satisfaction.