When the rainy season or dusty weather sets in, the operation of the windshield cleaning system becomes critical to driver safety. If you are faced with a situation where the windshield washer lever is pressed, but the liquid is not supplied to the glass, the problem often lies in a failure electric pump or clogged filter. On the model Nissan Almera On the new G15 body, this malfunction occurs quite often due to the design features of the tank and the quality of the components used.
Many owners try to solve the problem by holding the liquid supply button for a long time, which can lead to a blown fuse or burnt out the winding itself. washer motor. Before resorting to complex manipulations to disassemble the engine compartment, it is worth conducting competent diagnostics. In this article, we will analyze in detail how to identify the malfunction, select the correct analogue and replace the pump yourself, returning the system to functionality without contacting service.
Diagnosis of washer system malfunction
The first step in the repair process is to pinpoint the source of the problem. Do not rush to disassemble the tank if the sound of the pump is not heard, as the reason may be trivial - lack of voltage at the terminals. Check the condition of the fuse responsible for washing system, which is usually located in the fuse box in the engine compartment or passenger compartment.
If the fuse is intact, but nothing happens when you press the button, you need to check for a signal at the connector of the pump itself. To do this, you will need a multimeter or a test lamp. Connect the device to the contacts of the motor connector and ask an assistant to press the washer button. If there is voltage, the problem is exactly windshield washer pump, which requires replacement.
In some cases, the pump may make a quiet hum, but no fluid is being delivered. This indicates a mechanical problem within the housing or a clogged line. Clogged injectors or cracks in the hoses can also simulate a motor breakdown, so a visual inspection of the entire fluid supply route is required before purchasing a new part.
- 🔍 Check the marked fuse
WASHorWIPin the mounting block. - 🔊 Listen to the sound of the pump when you press the washer button.
- 🧪 Inspect the hoses for kinks, cracks or disconnections.
⚠️ Attention: Do not attempt to test the pump's functionality by removing it and applying power directly from the battery without connecting it to the system, as you may damage the hoses or overfill the engine compartment with fluid if you do not control the flow.
Choosing the right pump for Almera G15
The spare parts market offers many options for replacement, but not all of them are suitable for Nissan Almera G15 with the right quality and characteristics. The original pump is marked as Nissan 28910 and is highly reliable, but its cost may be overstated. An alternative is high-quality analogues from trusted brands, which often have an improved impeller or housing design.
When choosing, pay attention to the number of pipes on the pump body. On the tank Almera G15 Often two-section pumps are installed that supply fluid to the windshield and to the headlight washer nozzles (if the equipment includes this option). Make sure that the new part has the same number of outputs and connector shape, otherwise the installation will require complex wiring rework.
Cheap non-original products may have a shorter service life and weaker jet pressure, which is critical for effective glass cleaning. It’s better to overpay for the brand than to change the pump every six months. Compare specifications such as productivity (liters per minute) and operating voltage to ensure compatibility with the vehicle's on-board network.
| Manufacturer | Article | Number of pipes | Note |
|---|---|---|---|
| Nissan (Original) | 28910-1HC0A | 2 | High reliability, high price |
| Hella | 8EW 351 025-081 | 2 | Excellent quality, often used on the conveyor |
| Pierburg | 7.00303.01.0 | 2 | Good value for money |
| Standard analogues | Various | 1 or 2 | Risk of connector geometry mismatch |
- Original Nissan
- High-quality analogue (Hella/Pierburg)
- Budget Chinese equivalent
- I don't know, please advise
Preparing tools and work area
Before you begin dismantling the washer reservoir, you need to prepare a set of tools and provide easy access to the engine compartment. To work on Nissan Almera G15 you do not need specialized equipment, a standard set of plumbing tools is enough. However, having additional funds will make the process easier and speed up the work.
The most important condition is cleanliness. The surrounding area should be free of debris to prevent dirt from getting inside the reservoir when removing it or when replacing the pump. If you are operating in the winter, make sure the engine is cool and the fluid in the system is not frozen, as ice can damage plastic case pump when trying to turn on.
It is also recommended to prepare a container for draining the remaining washer fluid, since when disconnecting the hoses and removing the pump, some of the water will inevitably leak out. Having a rag will help you quickly clean up spilled liquid and prevent slipping on the floor of your garage or deck.
☑️ List of required tools
The process of dismantling the windshield washer reservoir
On Nissan Almera G15 washer reservoir is located in a hard-to-reach place, hidden behind the fender liner and body elements. To access it, you need to remove the plastic washer expansion tank (if it is separate) or dismantle the front bumper, depending on the specific body modification and year of manufacture. Often it is necessary to remove the wheel and unscrew the plastic clips of the fender liner.
After gaining access to the reservoir, disconnect the electrical connector from the pump. Be careful with the connector retainer as the plastic on older vehicles can become brittle. Next, you need to disconnect the fluid supply hoses. To do this, gently press the hose clamps or use a thin screwdriver to release them from the pump clamps.
The tank is attached to the body using several bolts and rubber supports. After unscrewing the fasteners, carefully remove the tank out. This must be done smoothly so as not to damage adjacent parts, such as the cooling radiator or wires. If the tank does not budge, check to see if there are any hoses or wires left connected.
⚠️ Attention: Be careful when removing the tank, as its walls are quite thin and can crack if handled carelessly, especially if it is made of cheap plastic or has been exposed to low temperatures.
What to do if the tank is stuck?
Sometimes the tank can become stuck to the body due to dirt and corrosion. Don't use brute force. Use WD-40 to treat the mounting points and gently rock the tank from side to side, gradually freeing it from the seat.
Replacing the motor and assembling the system
After removing the reservoir from the car, turn it over and find where the pump is mounted. It is usually held in place by a rubber collar or plastic stopper. Carefully remove the old pump, being careful not to damage the O-ring. If the ring has lost elasticity or is torn, it must be replaced, otherwise the tank will leak.
Install new washer motor to the seat. Make sure the O-ring is tight and airtight. Insert the pump until the latch clicks. If the pump has multiple sections, check that the outlets line up with the holes in the reservoir body.
Before installing the reservoir back on the car, it is recommended to fill it with a small amount of fluid and check the tightness of the new pump. If everything is in order, disconnect the tank and install it in place. Secure with bolts, connect hoses and electrical connector. Make sure all latches click into place.
Before final installation of the tank, check the operation of the pump by applying power to it from the battery (for a short time) to make sure that it pumps liquid and does not leak at the junction with the housing.
Testing and troubleshooting possible problems
After assembly is complete, turn on the ignition and check the operation of the washer system. The liquid must be supplied under sufficient pressure to the glass and headlight nozzles (if equipped). If the pressure is weak, check whether the hose is pinched during installation or whether the filter at the pump inlet is clogged.
If the pump hums but does not pump, air may have entered the system or an air lock has formed. Try turning the washer on and off several times at 5-second intervals to remove air from the hoses. Also check the operation of the nozzles - sometimes they become clogged with dirt and the jet does not flow, although the pump is working.
If after replacing the pump the problem does not disappear, it is worth checking the condition of the relay and wiring. Corrosion of the contacts in the connector may be the cause of the lack of contact. Clean the contacts with alcohol or a special cleaner and apply a conductive lubricant to protect against oxidation.
- ✅ Check the direction of the jet from the nozzles - adjust them if necessary.
- 🌧️ Make sure there is enough liquid in the tank and the filter is not clogged.
- 🔌 Inspect the connector contacts for oxidation or moisture.
Proper sealing of the pump and the absence of distortions during installation is the key to long-term operation of the system and the absence of leaks in the engine compartment.
Frequently asked questions and answers (FAQ)
Is it possible to replace just the motor without removing the entire tank?
In most cases on Nissan Almera G15 this is impossible or extremely inconvenient due to the limited space and location of the tank. It is recommended to remove the reservoir completely to ensure good access and ensure a tight connection to the new pump.
How often should the washer motor be replaced?
Under normal operating conditions, the service life of a high-quality pump is 5-7 years. However, frequent use in winter with low-quality antifreeze fluid or idling in the absence of fluid can reduce the service life to 2-3 years.
What to do if the pump does not start after replacement?
Check the fuse and the presence of voltage at the connector. Make sure the new pump is compatible with your vehicle in terms of number of outlets and connector. Sometimes the problem lies in the relay itself or a button on the steering wheel.
Can I use regular water instead of antifreeze?
In summer it is possible, but in winter it is absolutely forbidden. Water will freeze in the tank and pump, which will lead to rupture of the housing and failure of the pump. Use special antifreeze liquids with a freezing temperature lower than the current one outside.
⚠️ Attention: Never turn on the washer pump if there is no fluid in the reservoir or if it is completely frozen - this is guaranteed to lead to engine combustion.