Owners Nissan X-Trail generations T31 Often faced with the problem of windshield washer fluid leakage in winter. Most often, the culprit is a plastic tank that loses its seal due to temperature changes or mechanical damage when used on bad roads.
The symptoms of the malfunction are obvious: a wet mark remains on the asphalt, and the fluid level sensor constantly signals a low level, even after full refueling. Ignoring this problem can lead to failure of electric pumps, which begin to run dry or overheat due to contact with aggressive reagents.
The main causes of deformation and destruction of the tank
Plastic tank body windshield washer in Nissan X-Trail T31 susceptible to several aging factors. The main enemy is the incorrect use of antifreeze fluid. If you add water during a warm period, and with the onset of frost it freezes, the ice will expand and tear the walls of the container from the inside.
The second common reason is the chemical aggression of cheap washers. Some compositions with a high content of alcohol or aggressive surfactants corrode the plastic over time, making it brittle. Cracks can even appear at joints or around pump mounting holes.
A mechanical factor cannot be ruled out. When parking or driving off-road, the tank located in the engine compartment may be hit by a flying stone or deformed when other components are carelessly replaced. Visual inspection often does not reveal microcracks, which only appear under pressure.
⚠️ Attention: Do not use ordinary water in the washer system, even in summer, unless you plan to drain it completely. Mineral deposits can clog injectors and pumps, leading to costly repairs to the entire system.
Selection of original and high-quality analogues
When selecting a new part, it is important to consider that Nissan X-Trail T31 Tanks with different volumes and fittings were installed. The original part has a number 28920-AX600 or 28920-AX60A depending on the configuration and year of manufacture. Purchasing the original guarantees ideal geometry and compatibility with fasteners.
However, the market offers many analogues from trusted brands. Manufacturers such as Kyoei or Denso often act as suppliers of original components. When choosing a duplicate, be sure to check the presence of all the necessary holes for level sensors and pumps.
- 🔍 Compare the seats for washer motors on the old and new tanks before purchasing.
- 🔍 Make sure that the new part has high-quality threads for plugs and fittings.
- 🔍 Check for mounting brackets, which often break along with the tank.
It is important to note that cheap, low-quality copies may crack within the first season of use. Saving on such a part often leads to repeated repairs and costs for cleaning the engine compartment from leaked fluid.
⚠️ Attention: When purchasing a tank from disassembly (used), carefully inspect it for microcracks and traces of welding, as the previous owner may have tried to repair the part himself.
- Winter (-25°C and below)
- Summer
- Cheap "anti-freeze"
- I don't use washer
Necessary tools and preparation for work
To carry out work on replacing the tank with Nissan X-Trail T31 you will need a standard set of tools. Pay special attention to the socket set and ratchet, as access to some mounting bolts may be limited.
In addition to the tools, prepare a container for draining the remaining liquid and a rag. If you plan to use old fluid, make sure it is not frozen. It is better to carry out work in a warm garage to avoid difficulties with frozen connections.
- 🛠️ Set of open-end wrenches and sockets (including
T30andT40for plastic clips). - 🛠️ Screwdrivers with Phillips and flat blades for removing clips.
- 🛠️ Pliers for removing clamps from hoses.
- 🛠️ Sealant or O-rings for joints.
Before starting work, it is necessary to de-energize the system. Remove the negative terminal from the battery to avoid a short circuit when turning off the electric pumps. This is a standard precaution for any manipulation of electrical equipment under the hood.
☑️ Preparing to replace the tank
Step-by-step instructions for dismantling the old unit
The removal process begins with freeing up space in the engine compartment. You need to remove the plastic mudguard on the left side (driver's side). It is attached to several self-tapping screws and plastic clips, which often stick over time.
After removing the protection, the tank becomes more accessible. Disconnect the electrical connectors from the washer pumps. Be careful not to break the fragile connector retainers. Use a small screwdriver to carefully pry the retainer and release the contact.
Next, you need to disconnect the fluid supply hoses. Squeezing the clamps with pliers, slide them along the hose and carefully pull the rubber pipes off the tank fittings. If the hoses are stuck, gently wiggle them, but do not use excessive force to avoid tearing them.
Now you can proceed to unscrewing the mounting bolts. The tank is held in place by three or four mounting points. After unscrewing the bolts, carefully pull the tank up and towards you. Sometimes it may get stuck due to sticking or misalignment, then a slight rocking will be required.
Difficulties in dismantling pumps
Sometimes pump motors become tightly attached to the tank. If you plan to use them on a new tank, do not try to force them out. It is better to soak the joint in penetrating lubricant (WD-40) for 15-20 minutes, then gently rock the pump until it comes out of the seat.
If the pumps remain in the old tank, they must be carefully removed. To do this, turn the tank over and squeeze them out from the inside. Check the condition of the rubber seals on the pumps; they should be elastic and free of cracks.
If the tank mounting bolts are rusty, before unscrewing, generously treat them with penetrating lubricant and let sit for 10-15 minutes. This will save the thread and make dismantling easier.
Installation of a new tank and final assembly
Installing a new tank is the reverse process of dismantling. Before installation, check that all holes for pumps and sensors are clean. Install the O-rings on the pumps if they were removed.
Insert the pumps into the new tank until you hear a characteristic click. Make sure they fit snugly and don't wobble. This is critical to preventing leaks. Insert the tank into place, aligning the mounting holes.
Tighten the mounting bolts. Do not over-tighten them, as the plastic may crack from over-tightening. A tight fit is enough to eliminate vibration. Connect the hoses and secure them with clamps.
Connect the electrical connectors to the motors. Make sure the contacts are securely seated. Return the plastic mudguard to its place and tighten all the screws. Reinstall the battery terminal.
| Work stage | Key Actions | Common mistakes |
|---|---|---|
| Dismantling | Removing the mudguard, disconnecting the hoses | Damage to clips when removing protection |
| Transfer of pumps | Gently squeezing out from the old tank | Broken pump clamps |
| Installation | Fixing with bolts, connecting hoses | Overtightening of bolts, stripping of threads |
| Check | Liquid filling, testing | Forgotten plugs in holes |
The main task during installation is to ensure the tightness of the connections of the pumps and hoses, since even a small gap will lead to loss of fluid under the hood.
Checking tightness and eliminating possible problems
After assembly, it is necessary to conduct a test run of the system. Pour a small amount of liquid into the reservoir and turn on the washer mode. Inspect all connections and the tank body itself for leaks.
If you notice wet marks, stop work immediately and eliminate the cause. Leaks often occur due to poorly tightened clamps or loosely inserted hoses. In some cases, the problem may be a crack in the tank itself if it was installed with a defect.
Also check the operation of the injectors. If the liquid does not flow, the hose may have been pinched during installation or the nozzle may have become clogged. Clean the nozzles with a needle and adjust the direction of the jets.
If everything works properly, add fluid to the maximum level. Make sure that the level sensor responds to changes in the amount of washer fluid. This will confirm the correct installation and integrity of the entire system.
⚠️ Attention: If, after replacing the tank, the level sensor continues to light when the tank is full, check the functionality of the sensor itself or the wiring to it. It may have been damaged when dismantling the old unit.
FAQ: Frequently asked questions when replacing a tank
Do I need to remove the bumper to replace the reservoir on the X-Trail T31?
In most cases, removing the bumper is not required. It is enough to remove the plastic mudguard on the driver's side and, if necessary, partially dismantle the fender liner. This greatly simplifies and speeds up the replacement process.
Is it possible to use used pumps from an old tank?
Yes, you can, but only if they are in good condition. Before installing on a new tank, check their functionality by applying voltage directly. Worn out motors may run quietly and not produce the required pressure.
What is the tank capacity of the Nissan X-Trail T31?
The volume of the windshield washer reservoir on this model is approximately 5-5.5 liters. The exact figure depends on the year of manufacture and the presence of a headlight washer system, which may occupy part of the volume or have a separate reservoir.
What to do if the tank is cracked and there is no way to buy a new one right away?
A temporary solution is to use cold welding or special plastic for repairs. However, this is only a temporary measure, since the plastic has already degraded and the repair may not withstand pump pressure or temperature changes.
How to check the operation of the pumps before installing a new tank?
Connect the pumps directly to the battery (observing polarity) for a few seconds. If the pump starts and pumps water, it means it is working. If not, it needs to be replaced.