Variator on the "Nissan X-Trail": reviews of the owners of the operation

Jatco's CVTs work a lotrumors. Someone was lucky with buying a car, and someone after a few tens of thousands is forced to change the box under warranty. What does endurance of this knot depend on? What is actually the resource of the variator on the "Nissan X-Trail"?

CVT Model RE0F10A

Since 2007, the company "Nissan" decided to complete the X-Trail SUVs with variable-speed boxes. The body of the first generation T31 was equipped with a Jatco RE0F10A variator (aka CVT-7).

Its capacity is calculated on the engine size of 1.6up to 2.5 l. Such data provide dealerships. However, Jatco's website lists slightly different volumes - from 1.6 to 1.8 liters. If the CVT-7 is really designed for small cars, it becomes clear why it is so difficult for him to work out his life without breakdowns.

The torque of small cars reaches a maximum of 180 Nm, while engines with a volume of 2 liters or more give out 200 Nm. CVT can not cope with such a load.

Aggressive riding creates the need for a sharpswitching between gears, and as in the design of the variator there are a lot of rubbing joints, its wear is accelerated at times. So much depends on how the car owner himself uses the variator on the Nissan X-Trail.

Weak spots

What elements of the variator on the "Nissan X-Trail" T31 depends on its service life?

The main load when shifting gears are carriedon itself bearings of pulleys, pulleys and a belt of transfer of rotation from a shaft leading to the conducted. The nuance is that these pulleys are absolutely smooth, and the coupling with the belt occurs only through friction.

According to the owners, the CVT on the Nissan X-Trail of the T31 generation makes itself felt already after 80,000-100,000 km, although the promised resource is 200,000.

Bearings wear first, starting to issuecharacteristic hum The belt tension depends on them. If the bearing fails to cope with its function - the belt tension force decreases, it begins to slip, without giving the shafts a signal to change the gear. At the first stage of the fault box variator on the "Nissan X-Trail" "troit" (jerks appear). This is because the pulleys, idling, are deformed, getting scuffed and frayed.

There is an element on the hydroblock that regulatesgear ratio is a step motor. He "watches" the position of the accelerator pedal and mode of movement. The transfer of information goes to the moving elements of the pulleys at the expense of the step motor, which is quite fragile and wears quickly, which leads to the operation of the variator at only one speed.

Repair of the variator on the "Nissan X-Trail" T31 prettyproblematic: if there are spare parts to replace, their price will be unpleasantly high. The service can conduct troubleshooting and make an estimate. But if the warranty still works, experts recommend replacing the variator with the Nissan X-Trail.

Model RE0F10D (CVT-8)

Revision of the type of the variator on the "Nissan X-Trail" CVT-8 has increased its life and endurance to aggressive driving style.

The weight of the new transmission was reduced, morecompact oil pump. Reduced the friction force of the belt on the pulleys by 40%, thereby reducing the pressure on them. To save fuel, the gear ratio change was made stepwise.

According to the owners of the variator on the "Nissan X-Trail" CVT-8, we can assume that it lasts longer. Its resource is designed for 250,000 km of operation.

Features of operation of variators Jatco

The variator is fundamentally different from the box "automatic" or "robot." It has no gears, due to which the load on the engine is reduced.

How to use the variator on the "Nissan X-Trail", and what driving style to follow, so that the box lasts longer?

1. While the car is warming up, do not depress the gas pedal, trying to speed up the process. The box reacts to the accelerator even in the neutral position of the selector.
2. A sharp start gives a huge load on the belt and pulleys, repeatedly increasing their wear.
3. Driving over rough terrain has a negative effect on the state of the variator.
4. A car with a CVT gearbox can not be towed or trying to start the wheel ("pusher").
5. Towing other vehicles besides car trailers is not recommended.

Owners reviews about the variator on the "Nissan X-Trail", its features, boil down to the fact that this unit was created for a leisurely ride on smooth tracks.

Oil change and maintenance

According to the manufacturer’s regulations, maintenance of the variator should be carried out every 60,000 km of operation. For reinsurance, car owners try to pass MOT more often - through 40,000–50,000.

Change the oil in the variator on the "Nissan X-Trail" can be carried out, both at the service station, and myself.

To replace the transmission fluid in the variator, you must have:

• butter;
• strainer and filter for oil cooler;
• gaskets for the pallet and oil cooler;
• waste oil tank.

Oil for variators

Considering which variable is on the Nissan X-Trail, the transmission fluid is also selected. For the T31 body, the oil NS2 was produced, for the T32 body - the NS3.

NS3 oil is designed for radiatorlessvariators and work at higher temperatures. It has a reduced viscosity, and, according to the developers, suitable for both CVT-8 and CVT-7. However, the owners' feedback on the Nissan X-Trail variator with a CVT-7 box running on the NS3 suggests that there may be some noise due to a lack of a lubricating oil layer.

Replacing transmission fluid in the CVT-7 variator

You need to start the procedure with the engine warming up and the variator box on the Nissan X-Trail. Then:

1. We drive the car on the overpass. An inspection pit will also work.
2. Turn off the engine protection and remove the left wheel.
3. The liner does not need to be completely removed, only half.
4. We place the container for waste liquid under the drain hole and unscrew the plug.
5. We'll have to wait about half an hour until all the liquid has drained.
6. Oil is also collected in the pan. Remove it and drain the oily residues.
7. If the strainer can still be cleaned with diesel or carburetor cleaning fluid, it will be possible to save, but if not, then you will have to change the filter.
8. Magnets and the bottom of the crankcase thoroughly washed.
9. Insert the strainer (washed or new).
10. In the pallet install a new gasket and return it to its place.
11. Remove the battery and move in the direction of the air filter. Now there is access to the oil cooler filter. Remove it.
12. Installing a new filter and cooler gasket.
13. We return everything to its place.
14. Fill the new transmission fluid.
15. Check the oil level with a dipstick.

Oil change in the CVT-8 variator

The peculiarity of the CVT-8 is that it does not have a factory probe. You can check the level by adding a new oil or contact the service station. There is a dipstick that is inserted into the neck for pouring.

To change the oil will need:

• washer for drain plug;
• gasket;
• coarse filter and ring to it;
• transmission fluid (5 l - for partial replacement, 12 l - for full with the removal of the pallet);
• ring for fine filter and he;
• ring for level control plugs.

As with the oil change on the CVT-7, the machinemust be placed on a lift or inspection pit. In this case, you will need an assistant and a diagnostic scanner. If there is no scanner, it can be replaced with a thermometer (necessarily digital) on a pallet.

To gain access to the bottom, we drive the car to a pit or a lift. Further:

1. Turn off the drain plug. It should leak up to 5 liters of oil.
2. Remove the pan and strainer, wash them.
3. We set everything in place. If the filter is not subject to further operation - change it to a new one.
4. If you need a partial replacement, then fill the oil, set its level, and this procedure ends.
5. For a complete replacement, fill 3 liters of transmission fluid through the hole on the top (the one in which the probe was previously).
6. We start the engine and pass through the selector in all positions of the box, stopping at each of 5 seconds.
7. Drain the oil and repeat the process.
8. We are waiting for the temperature of the box to be 35C.^about.
   
9. Here you will need an assistant who will start the car.
10. Turn off the plug Overflow Plug. Fill the oil before the leak from the neck.
11. We start the car and pass the lever through all ranges with a delay of 5 seconds. Fix the lever in position "P".
12. Refill the oil again until it begins to overflow. Twist the cork in place.

Complete replacement of transmission fluid held. Now you can reset the value of the counter.

Symptoms of variator failure

Timely replacement of filters and fluid inbox, proper operation, of course, prolong the life of the variator. However, the appearance of breakdowns can still occur. To date, some stations are taken to carry out both partial and overhaul of this site, and even give a guarantee on their work.

Here are a few signs that should immediately turn to them:

• slip even when you gently depress the gas pedal;
• The gearbox goes into emergency mode (an indicator appears on the dashboard);
• vibration;
• jerks or shocks when switching between any gear, both on a warm car and on a cold one;
• transmissions are lost or not included;
• inhibited reaction to the change of speed;
• noises;

In reviews about the variator on the "Nissan X-Trail" is often mentioned that these symptoms in many cases can still be corrected without resorting to replacing the entire CAT.

The question of replacing the variator

Dealers, in contrast to the service station, do not repair.They immediately send the variator to the "Nissan X-Trail" in replacement. If it is warranty, it will not require costs. If not - the new unit will cost a large amount.

Before surrendering to the car dealers, you can independently diagnose the CVT box. Need tools:

• set of keys (cap and rozhkovy);
• screwdrivers with a hammer;
• clamps.

Before you start, you should take a picture of the structure. This can help in its further assembly. Boxes and jars for unscrewed nuts and bolts will also be useful.

Visual diagnostics of the variator

After examining each element of the PPC, you can understand why it works incorrectly:

1. Снимаем боковую крышку и поддон.On the pallet there are special magnets that keep debris and metal chips from the operation of the variator. If there are many of them on magnets, then we can limit ourselves to the replacement of fine and coarse filters.
2. Shafts and pulleys. First, remove the shafts, then the belt.We evaluate his condition. If it is worn, then it must be replaced. It is much less expensive than the new CVT. If the cones without scoring, then the problem may lie in the bearings.
3. The hum in the variator appears just the same because of the play in the bearing. It can be removed from the unit with a special puller. Replace the new is not difficult.
4. Fuel pump under covertorque converter. A differential and a transmission pair are also installed there, which must be removed in order to remove the pump. If it is changed, then together with the drive chain.
5. Before reassembly, rinse and dry all removed elements. Rubber parts better to immediately replace with new ones.
6. Collect the items must be strictly in the reverse order, to monitor the correct position of the box lock pins.

After assembly, check the gearbox:

• we start the engine;
• check the inclusion of each range;
• make a race.

If everything is set correctly, the variator should work without extraneous noise and jerks.