How much freon is in the Nissan Terrano air conditioner: rates, types and refills

Nissan Terrano is a popular crossover, which in Russian realities is often used in extreme temperatures. Air conditioning is not a luxury here, but a necessity, and its correct operation directly depends on the correct amount of freon. However, information about refueling standards is scattered across manuals, forums and service centers, and errors during refueling can lead to compressor failure or oil leakage.

In this article we systematized data on freon types, filling volumes for all generations Terrano (including restyled versions), and also added practical advice on diagnostics and self-refueling. We paid special attention critical nuances that 90% of car owners miss when working with the climate system.

What types of freon are used in Nissan Terrano

Since 2014, when Terrano returned to the Russian market (generation R51, built on a platform Renault Dacia Duster), his air conditioners used two types of refrigerant:

• 🔹 R-134a - classic freon for cars produced before 2017. Non-flammable, but with a high global warming potential (GWP = 1430).
• 🔹 R-1234yf - an environmentally friendly analogue, mandatory for European models since 2017. Less efficient in heat transfer, but with GWP = 4 (350 times lower than R-134a).

Important: Terrano for the Russian market after 2017 often equipped R-134a despite European standards. You can check the type of freon by:

• 📌 A sticker under the hood (usually on the radiator or compressor).
• 📌 Markings on service ports: HFC-134a or R-1234yf.
• 📌 VIN code (via database Nissan or Renault).

⚠️ Attention: Mixing R-134a and R-1234yf is strictly prohibited! This will lead to a chemical reaction, damage to the seals and failure of the compressor. If you are not sure about the type of freon, contact your dealer and ask for the VIN.

Freon refill rate table for Nissan Terrano

The volume of freon depends on year of manufacture, engine type And configuration (availability of climate control or manual air conditioning). Below is an updated table for models Terrano 2014–2023:

Year of manufacture	Engine	Freon type	Refill volume, g	Oil volume, ml
2014–2016	1.6 (H4M)	R-134a	450 ± 20	120 (PAG-46)
2017–2019	1.6 (H4M)	R-134a / R-1234yf*	420 ± 20 (R-134a) 380 ± 15 (R-1234yf)	100 (PAG-46 for R-134a) 80 (POE for R-1234yf)
2020–2023	1.6 (H4M)	R-1234yf	380 ± 15	80 (POE)
2014–2023	2.0 (F4R)	R-134a	550 ± 20	150 (PAG-46)

*For 2017-2019 models with R-1234yf required replacement of service ports (the diameter of the fittings is different) and flushing the system when switching from R-134a.

The data in the table is given for full refueling (including oil). If you top up the system, the volume of freon is reduced by 10–15% due to residues in the circuit.

Signs of a lack or excess of freon

Errors during refueling do not appear immediately, but it is dangerous to ignore them. Here are the key symptoms to help diagnose the problem: to compressor breakdowns:

Freon disadvantage:

• ❄️ The air conditioner blows warm air (outlet temperature above +10°C).
• 🔊 Extraneous noise in the compressor (creaking, knocking) when turned on.
• 💧 Oil on the circuit tubes (a sign of leakage through the seals).
• 📉 The pressure on the pressure gauge is below 1.5 bar when the compressor is running.

Excess freon:

• ❄️ Freezing of pipes and air conditioner radiator.
• 🔥 Compressor overheating (case is hot to the touch).
• 🚨 The climate control fuse has tripped.
• 📈 Pressure above 3.5 bar (for R-134a) or 4.0 bar (for R-1234yf).

⚠️ Attention: If after refueling the air conditioner works for 1-2 days and then stops cooling again, the problem is not in the amount of freon, but in leak or system contamination (for example, clogged receiver-dryer). In this case, vacuuming and checking for leaks is required.

What should I do if the air conditioner does not work after refueling?

If the compressor does not turn on after refueling, check:

1. Fuse (10A or 15A in the block under the hood).

2. System pressure (below 1.8 bar - the compressor will not start).

3. Signals from the pressure sensor (error code P0530 or P0533 in the ECU).

4. Presence of air in the circuit (evacuation required).

Step-by-step instructions for refilling freon

Self-refueling is possible, but requires strict adherence to sequence and availability of tools. You will need:

• 🔧 Pressure gauge station with adapters.
• 🧴 Freon cylinder (volume according to the table above).
• 🛢 Oil PAG-46 (for R-134a) or POE (for R-1234yf).
• 🔍 UV lamp and glasses for leak detection.

Refueling algorithm:

1. Preparation: Start the engine, turn on the air conditioning to maximum (LO, temperature 16°C, fan at 4th speed).
2. Connection: Connect the pressure gauge to low traffic port (blue cap, diameter 14 mm for R-134a or 12 mm for R-1234yf).
3. Pressure check: When the compressor is running, the pressure should be 2.0–2.5 bar (R-134a) or 2.5–3.0 bar (R-1234yf). If lower, refueling is required.
4. Refueling: Turn the container upside down (for the liquid phase) and slowly open the valve. Monitor pressure every 30 seconds.
5. Check: After refueling, check the outlet air temperature (should be +4...+8°C).

All ventilation flaps are open

The engine is warmed up to operating temperature

The compressor turns on (you can hear a clicking sound)

The freon cylinder was stored at +20…+25°C

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If the pressure does not stabilize after refueling, the following are possible:

• 🔴 Leak in the circuit (check the pipes, radiator, seals).
• 🔴 Clogged expansion valve or receiver-dryer.
• 🔴 Pressure sensor malfunction (error code P0532).

Common mistakes when refueling and how to avoid them

Even experienced car owners make mistakes that reduce the service life of the air conditioner. Here are the top 5 mistakes and their consequences:

1. Refueling without vacuum.
   

   Leads to moisture entering the system, tube corrosion and compressor failure. Solution: Evacuate the system for at least 30 minutes before refueling.

2. Using the wrong oil.
   

   For example, PAG-46 instead of POE for R-1234yf. Solution: Drain the old oil and flush the system.

3. Refueling.
   

   Excess freon increases the load on the compressor and leads to freezing of the pipes. Solution: Vent excess gas through the high-flow port (red cap).

4. Ignoring leaks.
   

   If freon leaves faster than 2 years, there is a gap in the system. Solution: Check with a UV lamp with added dye.

5. Refueling with the engine off.
   

   The compressor does not work - the pressure in the system is incorrect. Solution: Refuel only with the engine running and the air conditioning on.

If you have never charged the air conditioner yourself, practice old cylinder (for example, with freon residues) - this will help you understand how the pressure gauge station works and how to control the pressure.

How to check the system for leaks

Freon leakage is the most common problem with air conditioners. Nissan Terrano. According to statistics from service centers, 60% of calls are related to loss of refrigerant through:

• 🔧 Tube connections (35% of cases).
• 🔧 Compressor seals (25%).
• 🔧 Air conditioner radiator (20%).
• 🔧 Receiver-dryer (15%).
• 🔧 Capacitor (5%).

For diagnostics use:

1. UV dye: Add 5-10 ml to the system when refilling. After 2-3 days, check the tubes with a UV lamp - leaks will glow green.
2. Electronic leak detector: Sensitive to R-134a and R-1234yf vapors. Place the sensor near suspicious places (connections, seals).
3. Soap solution: Apply to connections - bubbles will indicate a leak. The method only works for large gaps.
4. Diagnostics by pressure: If after refueling the pressure drops faster than 0.3 bar per month, look for a leak.

⚠️ Attention: If a leak is found in air conditioner radiator or compressor, do not limit yourself to refueling - these components require replacement. For example, repairing a radiator is 3–4 times cheaper than replacing a compressor after it jams due to oil starvation.

When to contact service: 5 critical cases

Not all air conditioning problems can be solved on your own. Here are situations when professional diagnostics are required:

• 🚨 The compressor does not turn on, but the fuse is good (the clutch may be faulty or the winding may be broken).
• 🚨 There is a burning smell coming from the air ducts (a sign of compressor overheating or short circuit).
• 🚨 System pressure above 4.0 bar (R-134a) or 4.5 bar (R-1234yf) - risk of pipe rupture.
• 🚨 The air conditioner turns on, but after 5-10 seconds it turns off (the pressure sensor or relay is faulty).
• 🚨 A white coating appeared on the glass in the cabin (a sign of oil getting into the evaporator).

Cost of diagnostics in official services Nissan starts from 1,500 rubles, but it includes checking:

• 🔹 Pressure in the circuit.
• 🔹 Conditions of the compressor and coupling.
• 🔹 System tightness (vacuum test).
• 🔹 Radiator fan operation.

If you are offered a “free inspection,” check to see if it includes vacuuming and a leak test. Often this means only a visual inspection.

FAQ: Frequently asked questions about freon in Nissan Terrano

Can I use R-134a instead of R-1234yf?

No. Systems under R-1234yf have different seals, oil and operating pressures. Refilling with R-134a will cause leaks and compressor failure. If you want to switch to R-134a, you will need to replace all rubber elements and flush the system.

How often should you recharge your air conditioner?

Normally, freon is consumed by 10–15% per year. It is recommended to do a full refueling every 2-3 years. If your air conditioner stops cooling more often, look for a leak.

What to do if after refueling the air conditioner works, but weakly?

Possible reasons:

• 🔹 The cabin filter is clogged (replace).
• 🔹 The radiator fan is faulty (check the fuse F30).
• 🔹 There is air left in the system (vacuuming required).

How much does it cost to refuel at the service?

The cost depends on the type of freon:

• 🔹 R-134a: 1,500–2,500 rubles (with work).
• 🔹 R-1234yf: 3,000–5,000 rubles (due to the high price of the refrigerant).

They may additionally charge 500–1,000 rubles for leak diagnostics.

Is it possible to recharge the air conditioner in winter?

Technically yes, but there are some nuances:

• 🔹 The air temperature must be above +10°C (otherwise freon will not circulate).
• 🔹 The pressure in the system is lower, so fill 10-15% less than normal.
• 🔹 Use a cylinder heater (warm water, not open fire!).