Nissan Murano Z51 engine: a complete guide to characteristics, faults and repairs

Engine Nissan Murano Z51 — the heart of the second generation of crossover, released in 2008–2014. This power unit, known as VQ35DE, has become a legend thanks to its combination of power, reliability and technology. However, even such proven motors have weaknesses that are important to know about before purchasing or during operation.

In this article we will look at technical specifications engine, typical problems and malfunctions, and also give practical recommendations on maintenance and repair. We will pay special attention to the issues that most often concern owners: the real service life of the engine, the cost of overhauls and the features of operation in Russian conditions.

If you are planning to buy Murano Z51 with mileage or are already the proud owner of one, this information will help you avoid costly mistakes and extend the life of the engine.

Specifications of the VQ35DE engine in the Murano Z51

Motor VQ35DE - this is a 3.5-liter gasoline unit with a gas distribution system DOHC (double overhead camshaft) and 24 valves. It belongs to the series VQ, which is famous for its reliability and sporty character. B Murano Z51 this engine produces 265 hp at 6000 rpm and 336 Nm torque at 4400 rpm.

Design Features:

• 🔧 Aluminum cylinder block with cast iron sleeves - light but durable.
• ⚙️ Variable valve timing system (CVTC) on the intake shaft to optimize power.
• 🔥 Multipoint fuel injection with electronic control.
• 🛢️ Lubrication system with oil cooler for stable operation under high loads.

The engine is combined with continuously variable transmission CVT (variator Jatco JF011E), which provides smooth acceleration but requires special attention to maintenance. Combined cycle fuel consumption is approx. 11–13 l/100 km, which is typical for crossovers of this class.

Parameter	Meaning
Engine type	V6, petrol, VQ35DE
Volume	3.5 l (3498 cm³)
Power	265 hp at 6000 rpm
Torque	336 Nm at 4400 rpm
Compression ratio	10.3:1

Important: the VQ35DE engine in the Murano Z51 has a modification with a CVTC system only on the intake shaft, unlike later versions (for example, VQ37VHR), where the timing is adjusted on both shafts. This affects dynamics and efficiency, especially during aggressive driving.

Weaknesses and typical faults of the VQ35DE

Despite the reputation of a reliable motor, VQ35DE is not without its shortcomings. Many problems are related to age of the car And quality of service. Let's look at the most common faults:

1. Oil leakage through the valve cover and seals

• 🛢️ The valve cover gasket loses its elasticity after 100–150 thousand km, which leads to oil leaks.
• 🔧 The rear crankshaft oil seal is a weak point, especially when overheating.
• 🔥 Oil can get into the exhaust manifold, causing smoke and a burning smell.

2. Problems with the CVTC (variable valve timing) system

• ⚙️ Wear of CVTC gears and solenoids leads to knock on the cold and loss of power.
• 🔧 Contamination of oil channels aggravates the problem - flushing the system is required.
• 📉 If you ignore the malfunction, it is possible timing chain jump (rare, but critical).

3. Overheating and problems with the cooling system

• 🌡️ The thermostat and water pump fail after 150–200 thousand km.
• 🔥 The radiator can become clogged, especially when using low-quality antifreeze.
• ⚠️ Consequences of overheating: deformation of the cylinder head, cracks, burnout of the cylinder head gasket.

⚠️ Attention: if the engine VQ35DE oil begins to “eat” (consumption more than 1 liter per 1000 km), this may indicate wear of the oil scraper rings or stuck piston rings. In this case it is required disassembly and troubleshooting - flushes and additives will not help here.

VQ35DE engine life: real numbers and how to extend it

The manufacturer declares the engine life VQ35DE in 250–300 thousand km, but in practice, with proper maintenance, the motor can pass 400–500 thousand km without major repairs. However, there are nuances:

Factors reducing resource:

• 🛢️ Irregular oil changes (recommended interval is 7–10 thousand km).
• 🔥 Using low-quality fuel (octane number below 95).
• 🌡️ Overheating due to a faulty cooling system.
• 🚗 Aggressive driving with frequent gas changes on a cold engine.

How to extend the life of a motor:

• 🔧 Change oil every 7–8 thousand km (synthetic 5W-30 or 5W-40).
• 🛢️ Use original oil filter (Nissan 15208-9F600).
• 🌡️ Monitor the antifreeze level and replace it every 60–80 thousand km.
• ⚙️ Check the timing chain for stretching after 150 thousand km (chain life is 200–250 thousand km).

Cost of major repairs VQ35DE in Russia varies from 150 to 300 thousand rubles, depending on the condition of the unit and the complete set of spare parts. At the same time replacement with a contract engine will cost 200–350 thousand rubles (depending on the mileage of the donor).

Engine maintenance: regulations and recommendations

Compliance with maintenance regulations is the key to a long life VQ35DE. Below is minimum set of proceduresthat need to be done:

Procedure	Interval (thousand km)	Notes
Changing the oil and filter	7–10	Use synthetic oil API SM/SN, ILSAC GF-4/GF-5
Replacing the air filter	30–40	More often when used in dusty conditions
Replacing spark plugs	100	Original: Nissan 22401-JK81B (iridium)
Replacing antifreeze	60–80	Use Nissan L255N or analogues
Checking the timing chain	150–200	When stretched, the chain, shoes and tensioner need to be replaced

Additional recommendations:

• 🔧 Check the condition every 50 thousand km gaskets and seals for leaks.
• 🛢️ Rinse once every 2 years throttle valve And intake manifold from soot.
• ⚙️ When knocking appears when cold (characteristic "tractor" sound) check the system CVTC.

Check the oil level and condition (there should be no emulsion or metal shavings)|

Assess the compression in the cylinders (normal 12–14 bar)|

Check for oil and antifreeze leaks|

Listen to the engine when it is cold (knocks, extraneous noises) |

Check your service history (oil and filter changes regularly) -->

Repair and tuning: what can be done with the VQ35DE

Engine VQ35DE lends itself well as repairs, so tuning. Let's consider the main directions:

1. Major renovation

• 🔧 Standard overhaul includes boring the block, replacing pistons, rings, liners and valves.
• 💰 The cost of spare parts for capital is from 80 to 150 thousand rubles (depending on the manufacturer).
• ⚠️ When boring a block, it is important to consider maximum allowable repair size (usually +0.5 mm).

2. Tuning and increasing power

• 🔥 Chip tuning allows you to increase power up to 280–300 hp without mechanical modifications.
• ⚙️ Installation exhaust manifold 4-2-1 and direct flow improves performance at high speeds.
• 🛢️ Replacement throttle valve for option from 370Z (increased diameter).

3. Replacement with more powerful versions of VQ

• 🔧 Installation possible VQ37VHR (3.7 l, 330 hp) from Nissan 370Z, but will require modification of the mounts and electronics.
• 💰 The cost of such a swap is from 500 thousand rubles (including spare parts and work).

⚠️ Attention: when tuning VQ35DE pay special attention cooling system - a standard radiator may not cope with the increased thermal load. It is recommended to install an additional oil cooler and a reinforced water pump.

Frequently asked questions from Nissan Murano Z51 owners

In this section we will answer the most pressing questions that owners have Murano Z51 with engine VQ35DE.

What oil consumption is considered normal for VQ35DE?

For engines with mileage up to 150 thousand km, normal oil consumption is up to 300–500 ml per 10,000 km. If the engine “eats” more than 1 liter per 1000 km, this indicates wear of oil scraper rings or problems with valve seals. In this case, diagnostics with compression measurements is required.

Is it possible to drive on 92 gasoline?

Manufacturer recommends 95 gasoline with an octane number of at least 95. Using 92 octane gasoline can lead to detonation, especially under high loads, which will damage the pistons and valves over time. If there is no alternative, you can temporarily refuel with 92, but avoid aggressive driving.

The engine knocks when cold - what to do?

Knocking when cold VQ35DE most often associated with CVTC system wear or timing chain stretching. Recommendations:

1. Check the oil level (low levels make the problem worse).
2. Replace the oil with a more viscous one (for example, 5W-40 instead of 5W-30).
3. If the knocking noise does not go away after warming up, diagnostics is required. CVTC and replacement of worn parts.

How often should CVT oil be changed?

CVT JF011E paired with VQ35DE requires oil changes every 60,000 km. Use only original fluid Nissan NS-2 or NS-3. Neglecting this procedure leads to belt slippage and expensive CVT repairs.

Is it worth buying a Murano Z51 with a mileage of more than 200 thousand km?

Purchase Murano Z51 with a mileage of 200 thousand km is justified if:

• 🔧 The engine does not have knocking noises, oil and antifreeze leaks.
• 📊 Compression in all cylinders is not lower 12 bar.
• 🛢️ There is a history of regular maintenance (oil changes, filters, belts).
• 💰 The price of the car takes into account possible investments in repairs (for example, replacing a timing chain or variator).

If these conditions are met, the motor can last longer 100–150 thousand km without serious investments.

Conclusion: Is the Murano Z51 with the VQ35DE engine worth it?

Engine Nissan VQ35DE in Murano Z51 is a time-tested unit that combines reliability, power and maintainability. It is suitable for those who value comfort and dynamics, but are willing to pay attention to regular maintenance.

Engine advantages:

• ✅ High resource (400–500 thousand km with proper operation).
• ✅ Good traction at low and medium speeds.
• ✅ Easy to repair and availability of spare parts.

Cons:

• ❌ Sensitivity to the quality of oil and fuel.
• ❌ Potential problems with CVTC and timing chain at high mileage.
• ❌ High fuel consumption in the city (13–15 l/100 km).

If you are looking for a reliable crossover with a powerful engine and are ready to monitor its condition, Murano Z51 with VQ35DE - an excellent choice. The main thing is don't skimp on maintenance and respond in time to the first signs of malfunctions.