Nissan Largo is an iconic minivan that gained popularity in the 90s and early 2000s due to its practicality and reliability. Among all the modifications, the version with diesel engine 2.0 l, which combines efficiency with good torque. However, this option has its own nuances that you should know about before purchasing or during operation.

In this article we will look at technical specifications diesel Largo, typical engine problems, features fuel system and give practical advice on maintenance and repair. If you are planning to buy such a car or already own one, you will find answers to key questions here.

Technical characteristics of Nissan Largo 2.0 diesel

Under the hood Nissan Largo a naturally aspirated unit was installed with a diesel engine CD20 (or its modifications CD20T turbocharged). This engine belongs to the series Nissan Diesel, known for its simplicity and endurance. However, it has its own characteristics that are worth considering.

Basic motor parameters:

  • 🔧 Volume: 1974 cm³
  • ⚡ Power: 75–90 hp (depending on modification and availability of turbine)
  • 🔄 Torque: 150–180 Nm (peak at low speeds, which is typical for diesel engines)
  • ⛽ Fuel system type: mechanical injection pump (later versions - with electronic control)
  • 📏 Fuel consumption: 7–9 l/100 km (combined cycle)

Engine CD20 equipped timing chains (and not a belt), which is a plus from a reliability point of view, but a minus - if the chain breaks or stretches, the consequences for the valves can be fatal. It is also worth noting that early versions of the motor had problems with overheating due to an ineffective cooling system.

📊 Which engine do you prefer in the Nissan Largo?
  • Petrol 2.0
  • Diesel 2.0 naturally aspirated
  • Diesel 2.0 turbo
  • Other

Weaknesses of the CD20 diesel engine

Despite the reputation of an "indestructible" motor, CD20 has several vulnerabilities that appear with age. Here are the most common problems:

  1. 🔥 Problems with the cylinder head (cylinder head): cracks between valve seats are a typical “disease” caused by overheating or the use of low-quality antifreeze.
  2. ⚙️ Camshaft wear: on engines with high mileage (200+ thousand km), the cams often wear out, which leads to a drop in compression.
  3. ⛽ Fuel injection pump malfunctions: plunger pairs wear out, which leads to unstable engine operation and increased fuel consumption.
  4. 🔗 Timing chain stretch: on runs over 150 thousand km, the chain can “go away” by 1–2 teeth, which affects the valve timing.

Critical feature: CD20 engines are extremely sensitive to oil quality. Using mineral or semi-synthetic oils with low viscosity (for example, 10W-30 instead of the recommended 15W-40) accelerates wear of the bearings and crankshaft.

⚠️ Attention: If the engine starts to “trouble” when cold, but levels out after warming up, this is the first sign of wear on the injection pump plunger pairs. You cannot postpone diagnostics: further operation will lead to expensive repairs.

Fuel system: features and typical faults

Fuel system Nissan Largo 2.0 diesel built according to the classical scheme with mechanical injection pump (on early models) or electronically controlled (on later ones). Main elements of the system:

  • 🛢️ Fuel tank: Located under the rear seat, it is susceptible to corrosion from the inside.
  • ⚡ Injection pump: models VE (Bosch) or Zexel (on turbo versions).
  • 🔄 Injectors: mechanical, service life - 150–200 thousand km.
  • 🔥 Glow plugs: they fail every 50–80 thousand km.

The most common problem is airing the system due to air leaks through cracked hoses or leaking connections. This manifests itself as difficulty starting after a long period of parking. Another typical fault is coking of injectors, especially if the car was operated on low-quality diesel fuel.

Check the tightness of the hoses from the tank to the injection pump

Inspect the fuel filter for water or dirt

Listen to the fuel injection pump for any extraneous noise.

Measure the compression in the cylinders (the norm is not lower than 24 bar)

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For prevention it is recommended:

  • 🔧 Change fuel filter every 10–15 thousand km (in Russian realities).
  • 🛢️ Use antigel additives in winter, even if the fuel is positioned as “winter”.
  • ⚡ Once every 50 thousand km, wash the injectors on the stand.

Turbocharged versions: pros and cons

In line Nissan Largo there are diesel versions with turbocharging (CD20T). They develop to 90 hp and have smoother traction at low revs. However, the turbine adds complexity to operation:

Pros Cons
✅ Better dynamics (acceleration to 100 km/h in 16–18 seconds vs 20+ seconds for naturally aspirated) ❌ Higher engine operating temperature
✅ Less fuel consumption on the highway (6–7 l/100 km) ❌ Turbine sensitivity to oil quality
✅ Higher torque (up to 180 Nm) ❌ Risk of “oil starvation” during sudden starts
✅ Better acceleration on climbs ❌ Difficulty in repairing the turbine (parts often have to be ordered)

The main problems of turbo versions:

  • 🌀 Turbine bearing wear: manifests itself as a whistling or grinding noise when revving up.
  • 🔥 Overheat: requires more frequent checking of the antifreeze level and radiator condition.
  • ⛽ Increased oil consumption: the norm is up to 1 liter per 1000 km, but when the turbine wears out it can reach 1.5–2 liters.
⚠️ Attention: After a long trip at high speeds, you cannot immediately turn off the engine - the turbine must cool down at idle for 1-2 minutes. Ignoring this rule leads to coking of the oil channels.

Operation and maintenance: tips for owners

To Nissan Largo 2.0 diesel served for a long time, adhere to the following recommendations:

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After changing the oil in the CD20 engine, avoid high speeds (above 3000 rpm) for the first 500 km - this will help the new liners “break in.”

Service schedule:

  • 🔧 Oil change: every 7–8 thousand km (use 15W-40 or 20W-50 for the summer period).
  • 🔄 Replacing the air filter: every 20 thousand km (more often in dusty conditions).
  • ⛽ Flushing the fuel system: once every 50 thousand km.
  • 🔥 Checking the glow plugs: before the winter season.

Pay special attention cooling system:

  • 🚰 Change antifreeze once every 2 years (even if the mileage is small).
  • 🔍 Check the condition of the pipes and pumps (their resource is 80-100 thousand km).
  • 🌡️ Monitor the operation of the thermostat: if the engine does not warm up to 80–90°C, it needs to be replaced.
What to do if the engine does not start in cold weather?

1. Check the glow plugs (their resistance should be 0.5–6 ohms).

2. Recharge the battery - diesel requires high starting current.

3. Add an antigel additive to the fuel (for example, Liqui Moly Diesel Fliess-Fit).

4. If the injection pump is “grabbed” by frost, warm it up with a hair dryer (not open fire!).

Repair and spare parts: where to look and how much it costs

One of the advantages Nissan Largo is the availability of spare parts. However, there are nuances:

  • 🔧 CD20 engine: Most parts (piston, timing, injection pump) can be found at disassembly sites or ordered new ones from official dealers Nissan.
  • ⚙️ Turbine: original spare parts are expensive (from 30 thousand rubles), but there are analogues from Garrett or IHI.
  • ⛽ Injectors: restoration costs 1.5–2.5 thousand rubles. per piece, new ones - from 5 thousand rubles.
  • 🔗 Timing chain: a set (chain + shoes + tensioner) costs 8–12 thousand rubles.

Cost of typical repairs (including work):

Type of repair Cost (RUB)
Replacing the timing chain 15 000 – 25 000
Injection pump repair 10 000 – 30 000
Turbine replacement 25 000 – 50 000
Cylinder head grinding 8 000 – 15 000
Replacing crankshaft bearings 20 000 – 40 000

Where to look for spare parts:

  • 🛒 Showdown: the best option for used parts (prices are 2–3 times lower than new ones).
  • 🌍 Online stores: Exist.ru, Autodoc, Emex — here you can find original and non-original spare parts.
  • 🏭 Official dealers: expensive, but quality guaranteed (relevant for turbines and fuel injection pumps).
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When purchasing a used injection pump, be sure to check it on a bench - even an apparently serviceable pump may have worn plunger pairs.

Modifications and tuning: what can be done with the CD20

Engine CD20 has potential for modernization, but it is important not to overdo it. Here are some areas for tuning:

1. Power increase:

  • 🌀 Turbine installation: On naturally aspirated versions you can install a turbo kit from CD20T (fuel system and cooling will require modifications).
  • ⚡ Chip tuning: ECU firmware (if electronic) can add 10–15 hp, but fuel consumption will increase.
  • 🔥 Replacing injectors: installation of more efficient nozzles (for example, from Isuzu 4JG2) will improve the dynamics.

2. Improved reliability:

  • 🛡️ Reinforced radiator: relevant for turbo versions to avoid overheating.
  • 🔗 Lightweight timing chain: reduces the load on the tensioner.
  • ⛽ Additional fuel filter: installed in front of the injection pump for better cleaning of diesel fuel.
⚠️ Attention: When tuning a diesel Largo Be sure to strengthen the brake system - standard brakes are not designed for increased power.

FAQ: answers to frequently asked questions

❓ What is the resource of the CD20 engine?

With proper maintenance CD20 passes easily 300–400 thousand km. Turbocharged versions (CD20T) serve a little less - up to 250–300 thousand km, since the turbine adds load. The main thing is to monitor the oil, cooling and fuel system.

❓ Is it possible to fill modern diesel fuel with additives?

Yes, but with reservations. Modern diesel fuel with low sulfur content (Euro-5/Euro-6) less lubricating than the old one. Therefore it is recommended to add additives to improve lubricity (For example, Liqui Moly Diesel Additiv). Also avoid biodiesel - it can damage the rubber seals of the fuel injection pump.

❓ Why does the diesel Largo smoke black smoke?

Black smoke indicates over-enriched fuel mixture. Reasons:

  • 🔧 Faulty nozzles (pouring or spraying poorly).
  • ⚡ Lost injection pump settings.
  • 🌀 Lack of air (clogged air filter or problems with the turbine).

Diagnosis is urgently required!

❓ Which oil is better to fill in CD20?

Optimal options:

  • Summer: 20W-50 (For example, Mobil Delvac 1300 Super).
  • Winter: 15W-40 (For example, Castrol GTD).
  • Universal: 10W-40 (but only if the engine is in good condition).

Important: Oil must meet specification API CF-4 or higher.

❓ Is it worth buying a Nissan Largo with a diesel engine today?

Depends on goals:

  • ✅ Pros: low consumption, reliability, spacious interior, cheap maintenance.
  • ❌ Cons: weak dynamics (especially aspirated), sensitivity to frost, age of most specimens (20+ years).

If needed working minivan for family or business - a good choice. If you want comfort and modern technology, it is better to look towards newer models.