Do-it-yourself qashqai variator repair

Our address: St. Petersburg, Sofiyskaya st., 8 B1
Working hours: Mon-Sat from 10.00 to 20.00

A common problem in Nissan Qashai is CVT noise at speeds of 40-60 km / h or more. A variator in a car is still much less common than a traditional gearbox. Therefore, many legends have developed around the repair of the variator. Using the accumulated experience, we will try to dispel one of them, namely: "the variator cannot be repaired on its own." We are just sharing our experience out of respect for competent motorists who want to fix the problem with their own hands.

What do we need: Keys for 10-11-14, impact screwdriver, hammer, 6 clamps, spacious and clean work table, any camera.

An important point: You will need plastic bowls for storing removed parts. Each bowl, as it is filled, should be placed in the order of the chronological sequence of dismantling, inscribed, important points should be photographed. This will help to accurately reassemble the variator consistently.

This is how the removed Nissan Qashai CVT looks like. Let's go first! Start by unscrewing the 6 bolts of the transfer case cover.

Using a screwdriver, carefully pry off the cover of the dispenser and remove it. Isn't it getting interesting?

And that's okay: a conventional tapered roller bearing. We take out the "piece", it turned out - a two-bearing helical gear. We place all this in the first bowl together with 6 bolts and label it.

We turn the box over, take out the shaft together with part of the box body. We unscrew the bolts around the perimeter.

Using a hammer, gently tap the lid around the perimeter, removing it from the guide axes. This is what a semi-disassembled variator looks like. This moment is worthy to be recorded on the camera.

We remove two gears. Do not forget that we put everything in separate bowls according to the principle of belonging to one assembly unit and label it.

We unscrew the screws securing the pump casing. Remove the gear with the pump chain.

Now the oil pump cover can be easily removed. Grab the pump shaft end, pull it up and remove it. Nothing complicated! It will also be easy to assemble in the reverse order, if you remember to photograph and arrange the bowls with the recoverable parts in chronological order.

We take out the shaft behind it. Everything, we have coped with this side of the variator box. We turn the box over again and unscrew the fastening elements of the lid.

The cover sits tightly on the guide axes, gently squeeze it around the perimeter with a screwdriver. And remove the cover.

Before us is the main assembly of the variator - 2 shafts and a belt. Actually, this is an automatic variator, a device for continuously changing the gear ratio between two shafts.

He's from a different angle. But this is not our ultimate goal, although it becomes more and more exciting.

Using ordinary plastic clips, we tighten the belt in several places so that it does not crumble during subsequent dismantling.

Carefully remove the pulleys with a belt from the body. Needless to say, when dismantling, nothing foreign should get into these mounting holes?

We put the pulleys on a flat surface and by force (that's why we pulled the belt with clamps!) We pull the pulley, as shown in the photo. And we free the pulleys from the belt. The pulleys of interest to us on the table

Try to grab the outer race of this bearing and wiggle it slightly. Perceptible and uneven backlash! The source of the hum was found - bearing wear. Here we have a sense of satisfaction from a job well done. We did it!

After replacing the bearing, the assembly is carried out in the reverse order.It's simple, because all the bowls with the knots removed are inscribed and are in chronological order. Before assembly, all internal parts of the box must be thoroughly rinsed with gasoline. And for ourselves we draw a conclusion: the "japanese mother" is not so scary as she is painted!

Nissan Qashqai is in deserved demand among domestic consumers. All thanks to its technical performance. The latest versions of the car are distinguished by excellent driving dynamics. It should be noted that the driving dynamics of the vehicle is influenced by the installed transmission system. A potential car owner is offered a choice of a mechanical or variable speed gearbox. A positive effect on the condition of engine parts is that, thanks to the presence of electronics, the power plant of the car is less susceptible to wear.

On the 2nd generation, it is the variator that is found on most models. In this case, the volume of the engine can be equal to 1.2, 1.6 or 2.0 liters. Cars with manual transmission can run on diesel. In particular, an engine with a volume of 1.5 liters with a capacity of 110 horsepower can be distinguished. A Qashqai with a CVT can produce 144 horsepower. On a foreign car, there is front or all-wheel drive. On the latest versions of the car, at speeds over 100 km / h, aerodynamic noise is not audible in the cabin. Regardless of the type of gearbox, the driver will receive excellent driving dynamics and acceptable fuel consumption.

The transmission system on the Nissan Qashqai affects how much fuel is consumed in each mode. On a number of versions of a car in the urban cycle, about 8.5 liters per hundred can be spent. The Qashqai 2016 model with a turbo engine runs quietly. Before you start moving, the car with a variator should be warmed up. This is especially true in winter.

When operating this vehicle, you should not forget about the passage of scheduled maintenance. This procedure is carried out every 10,000 km. To do this, you need to contact the TO station. Here mechanics must check the working ability of all mechanisms that are in the engine compartment. Experts can help in the implementation of replacement spark plugs, filters. Also, the amount of oil in the system must be checked. It should be noted that on the Qashqai model, the need to change the transmission oil occurs after 60,000 km.

CVT transmission has a complex design. This circumstance is the reason why the repair of the variator on Qashqai should be trusted by experienced workers. Depending on the degree of breakdown, a contract variator can be installed on the car.

The variator is designated as CVT (continuously variable transmission). Considering the device of this box, it should be noted that there is no fixed gear, while the speed change occurs smoothly without difficulty. The likelihood that the car will skid out of the blue is minimized. The warranty resource of the variator can be up to 120,000 km of run. With careful driving, the checkpoint may not lose its functionality even at 200,000 km.

The Nissan Qashqai variator must be diagnosed if:

• vibrations appeared;
• slipping is noted;
• jerks often occur when changing speed modes;
• shocks in the transmission began to be felt.