Nissan Almera G15 with automatic transmission RE4F03B (or DP0 depending on the year of manufacture) is a reliable car, but even it is not immune to problems with automatic transmission solenoids. These small solenoid valves are responsible for smooth gear shifts, control of hydraulic pressure, and proper operation of the entire transmission. When solenoids fail, the driver experiences jerking, shifting delays, or even complete transmission failure.

In this article we will look at what solenoids are installed in the automatic transmission Almera G15, how to recognize their malfunction by symptoms and error codes, and also give step-by-step instructions for replacement. We will pay special attention to the selection of spare parts - original and analogues - and nuances that will help avoid repeated breakdowns after repair.

What solenoids are installed in the automatic transmission? Nissan Almera G15?

In automatic box Almera G15 (2012–2018) a solenoid block is used, which includes several key elements:

  • 🔧 Pressure control solenoid (Line Pressure Solenoid) - regulates the overall hydraulic pressure in the system.
  • 🔄 Shift Solenoids (Shift Solenoid A, B, C, D) - are responsible for engaging specific gears.
  • 🛑 Torque converter lock-up solenoid (Torque Converter Clutch Solenoid) - controls the torque converter clutch.
  • 🔥 Thermal Control Solenoid (in some modifications) - prevents oil overheating.

Depending on the year of manufacture and modification of the automatic transmission, the number of solenoids may vary. For example, in boxes RE4F03B (installed on Almera G15 before 2015) usually 4–5 solenoids, while in newer versions DP0 there can be up to 7 of them. The exact configuration can be found by VIN code car or through a diagnostic scanner.

All solenoids are combined into a single block (solenoid package), which is attached to the automatic transmission valve body. If even one valve fails, the entire unit often needs to be replaced, since individual solenoids are not always available for purchase.

📊 What type of automatic transmission is installed in your Almera G15?
  • RE4F03B
  • DP0
  • I don't know
  • Other

Signs of faulty automatic transmission solenoids

Solenoid problems appear gradually and can easily be confused with other transmission problems. However, there are a number characteristic symptoms, which directly point to the valves:

  • ⚡ Jerks when shifting gears - especially noticeable when accelerating or braking.
  • ⏳ Gear start delays (for example, when moving from 1st to 2nd or from 3rd to 4th).
  • 🚨 Sudden shocks in the boxas if the car was “kicking”.
  • 🔄 Unstable operation at idle (the box may twitch or spontaneously switch to N).
  • 🛑 Failure to engage one or more gears (for example, 4th speed does not work).
  • 💡 Check Engine or AT light is on on the dashboard.

If these signs are ignored, faulty solenoids may result in friction wear, damage to the valve body or even complete failure of the automatic transmission. For example, if the pressure solenoid is stuck open, the oil supply will be under pressure, causing gear slippage and overheating of the transmission.

⚠️ Attention: If, when driving at a speed of 60–80 km/h, you feel vibration or “dips” when shifting, immediately check the level and condition of the oil in the automatic transmission. In 70% of cases, solenoid failure is associated with contaminated or low-quality oil, which clogs the valve body channels.

Error Codes Indicating Solenoid Problems

Diagnostic scanner (eg Launch X431 or Autel MaxiCOM) will help you pinpoint which solenoid has failed. Below is a table with an explanation of the most common error codes for Nissan Almera G15:

Error code Description Probable Cause Recommendations
P0740 Torque converter lock-up malfunction Failure of the TCC solenoid or mechanical damage to the torque converter Check wiring and solenoid resistance (should be 10-15 ohms)
P0750 Shift A solenoid malfunction Valve winding is dirty or broken Replacing the solenoid or the entire block
P0755 Shift B solenoid malfunction Short circuit or mechanical wear Diagnostics with a multimeter, replacement if necessary
P0760 Shift C solenoid malfunction Problems with wiring or automatic transmission control unit Check the power supply and ground
P0780 Gear shifting problems Multiple solenoids not working correctly or low oil pressure Comprehensive automatic transmission diagnostics, oil and filter changes

If the scanner shows errors P0730–P0736 (incorrect gear ratio), this may indirectly indicate problems with the solenoids, but is more often associated with wear of the clutches or planetary mechanism. In such cases it is required disassembling the box for detailed diagnostics.

Important: after replacing the solenoids, errors must be reset through the scanner, otherwise they will appear again, even if the problem is resolved.

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Before purchasing new solenoids, check their resistance with a multimeter. For most models Nissan normal value is 10–20 ohms. If the resistance approaches zero or infinity, the valve is faulty.

Diagnostics of automatic transmission solenoids: step-by-step instructions

Before proceeding with the replacement, it is necessary to confirm that the problem is in the solenoids. Here's how to do it:

  1. Checking the automatic transmission oil:
    • 🔴 The oil level should be between the marks HOT on the dipstick (check on a warm box!).
    • 🟢 Oil color - red or light brown. If the oil is black or smells burning, a complete change is required.
  2. Reading errors:
    • Connect a diagnostic scan tool and write down all automatic transmission related codes.
    • Pay attention to errors P07xx - they directly point to the solenoids.
  3. Checking Solenoid Resistance:
    • Remove the automatic transmission pan and get to the solenoid block.
    • Disconnect the connector and measure the resistance of each solenoid with a multimeter.
  4. Visual inspection:
    • Check the condition of the wiring and contacts for oxidation.
    • Inspect the valve body for metal shavings or contamination.

If the solenoids are “stuck” due to dirt, sometimes washing them with a special cleaner (for example, Liqui Moly ATF Additive). However, this is a temporary solution - after 10-20 thousand km the problem will return.

Oil level and condition in the automatic transmission|Error codes via scanner|Solenoid resistance with a multimeter|Condition of wiring and contacts|Cleanliness of the valve body-->

Replacing automatic transmission solenoids Nissan Almera G15: step by step guide

To replace solenoids you will need:

  • 🔧 Set of sockets and keys (including 10 mm And 14 mm).
  • 🛠 Screwdrivers (phillips and flat).
  • 🧴 Sealant for automatic transmission pan (for example, Loctite 574).
  • 🔋 New solenoid block or individual solenoids (see article numbers below).
  • 🚗 Lift or inspection hole.

Step by step instructions:

  1. Drain the automatic transmission oil:

    Unscrew the drain plug (or remove the pan) and drain the oil into a container. Pay attention to the presence of metal shavings - if there are a lot of them, the box will need to be washed.

  2. Remove the automatic transmission pan:

    Unscrew all the bolts (usually 16–18 pieces) and carefully remove the pan. Be careful - there may be some oil left in it.

  3. Remove the valve body:

    Disconnect the solenoid connectors and unscrew the valve body mounting bolts (usually 6–8 bolts for the head 10 mm).

  4. Replace solenoids:

    Remove the old solenoid block and install the new one. If you are replacing individual solenoids, carefully remove them from their sockets without damaging the O-rings.

  5. Reassemble everything in reverse order:

    Install a new automatic transmission filter (recommended), secure the pan with sealant and fill with fresh oil (volume - 6-7 liters for a complete replacement).

⚠️ Attention: When installing a new solenoid block be sure to update the firmware of the automatic transmission control unit (TCM) if the car was manufactured after 2014. Otherwise, the box may not work correctly due to incompatible calibrations.

After replacing solenoids:

  • 🔄 Swipe automatic transmission adaptation (via a scanner or the “training” method - see instructions below).
  • 🚗 Test the car while driving, paying attention to the smoothness of the shifts.
  • 📊 Reset errors via the diagnostic tool.
How to adapt an automatic transmission after replacing solenoids

1. Warm up the box to operating temperature (drive 5–10 km).

2. Stop on a flat surface and move the selector to all positions (P-R-N-D-2-L), holding each position for 5 seconds.

3. Repeat the cycle 3-5 times.

4. Turn off the ignition for 1 minute, then start the car and check the operation of the box.

Selection of spare parts: original vs analogues

For Nissan Almera G15 solenoids are sold both separately and as part of a block. Below are the article numbers of original parts and proven analogues:

Solenoid type Original article Analogs (brand + article) Note
Solenoid block (complete) 31397-3MX0A (RE4F03B)
31397-1M51A (DP0)		 Aisin TCT-003
ZF S671093501		 It is better to take a complete block than individual solenoids
Shift Solenoid A 31327-3MX00 Febi 24313
Meyle 3143130001		 Often fails due to overheating
Torque Converter Lockup Solenoid (TCC) 31327-AL50A Sachs 313273MX00
Ajusa 15029000		 When replacing, check the condition of the torque converter
Automatic transmission filter 31726-3MX0A Mann W 914/2
Mahle OC 138		 Replace the filter every time you repair your automatic transmission.

When choosing analogues, pay attention to:

  • 🔍 Compatible with automatic transmission model (RE4F03B or DP0).
  • 📦 Complete set — some blocks are sold without o-rings.
  • 🏭 Manufacturer - give preference Aisin, ZF or Febi.
⚠️ Attention: Cheap solenoids from unknown brands (eg from AliExpress) often have incorrect resistance or fail quickly. Savings of 2–3 thousand rubles can result in repeated repairs after 10–15 thousand km.
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When purchasing a solenoid block, always check it for defects - some new parts may have defective seals or windings. Ask the seller to check the resistance before purchasing.

Preventing problems with automatic transmission solenoids

To extend the life of the solenoids and the entire box, follow these recommendations:

  • 🔄 Change the automatic transmission oil every 60 thousand km (or once every 4 years if the mileage is low). Use only original oil Nissan Matic Fluid S or its analogues (Idemitsu ATF Type-S, Ravenol ATF J1).
  • 🚗 Avoid aggressive driving — sharp accelerations and braking increase the load on the solenoids.
  • 🛑 Do not tow heavy trailers — Almera G15 not intended for high transmission loads.
  • 🔥 Monitor the automatic transmission temperature — if the oil overheats (above 100°C), install an additional cooling radiator.
  • 📊 Regularly reset automatic transmission adaptations (via a scanner or the “learning” method) if you notice delays when switching.

If you often drive in traffic jams or off-road, reduce the oil change interval to 40–50 thousand km. Under such conditions, the oil loses its properties faster, and wear products clog the valve body channels.

It is also useful to check the oil level in the automatic transmission once a year when it is hot - this will help you notice leaks or wear of the seals in time.

Frequently asked questions (FAQ)

Is it possible to drive with faulty solenoids?

For a short time - yes, but this will lead to accelerated wear of the clutches and other automatic transmission elements. For example, if the pressure solenoid is not working, the transmission will shift violently, which will damage the planetary gear. We recommend that the problem be repaired within 1-2 weeks after symptoms appear.

How much does it cost to replace solenoids at a service center?

The cost depends on the region and type of repair:

  • Replacing a separate solenoid costs 3–5 thousand rubles (excluding spare parts).
  • Replacing the entire solenoid block costs 8–12 thousand rubles.
  • Full automatic transmission diagnostics - 1.5–3 thousand rubles.

Price of spare parts: the original solenoid block will cost 15–25 thousand rubles, analogues - 8–15 thousand rubles.

What kind of oil to fill in automatic transmission Almera G15 after replacing solenoids?

Officially Nissan recommends Matic Fluid S (article KE908-99932). Suitable analogues:

  • Idemitsu ATF Type-S (article 30050037-925).
  • Ravenol ATF J1 (article 4014835715217).
  • Motul Multi ATF (article 105777).

The volume for a complete replacement is 7-8 liters (with flushing), for a partial replacement - 3-4 liters.

Is it possible to wash the solenoids without removing the valve body?

Yes, but this is a temporary solution. For flushing, use special additives (for example, Liqui Moly ATF Additive or Wynns ATF Cleaner). Algorithm:

  1. Drain 2–3 liters of oil from the automatic transmission.
  2. Add flushing fluid.
  3. Drive 10–15 km, avoiding high loads.
  4. Replace the oil and filter completely.

The effect lasts for 10–20 thousand km, after which the solenoids will begin to “glitch” again.

What happens if you don't replace the solenoids on time?

The consequences depend on which solenoid is faulty:

  • If out of order pressure solenoid — the box will overheat, which will lead to wear of the clutches and planetary mechanism.
  • If it doesn't work Shift solenoid (for example, Shift B) - one of the gears will stop engaging, which will increase the load on the remaining ones.
  • If jammed TCC solenoid - the torque converter will be constantly locked or unlocked, which will cause increased fuel consumption or overheating.

Ultimately it may be necessary automatic transmission overhaul (from 50 thousand rubles).