In detail: do-it-yourself gearbox repair Renault lagoon from a real master for the site my.housecope.com.
It's no secret that automatic transmission repairs start at $ 1,500, which is not acceptable for the 19th. In addition, I have the sad experience of double repairing automatic transmissions on Renault Laguna. Both times I gave away 1500+ - $ 100. In addition, you pay for the details invented by the technical center. The car skidded in first gears. On the third - fourth I drove normally until the first traffic light, then everything was from the beginning. So the repair itself: The hardest part is to remove the box. Here alone can not cope - instructed the garage service (remove - deliver 7000r.) took the box and started
1. The bagel has already been removed. We unscrew and remove the round cover from the seven screws. It is pulled out with two 10 bolts. You will see and understand.
2. We take out the so-called gravity head, carefully and horizontally - maybe crumble before you know how it works. And disassemble have to. The thing is apparently German.
3. The gravity pump is easy to disassemble and contains three clutch packs. In my the case was a burnt out middle package responsible for the second or third speed. Its replacement + support ring cost (1500 rub.) Spare parts in Transmatic.ru The support ring apparently always bursts into many pieces. There is one more clutch pack far inside the box but I did not touch him.
4. Now reassemble everything in reverse order. The main thing is to get it with everyone the petals of the extreme clutch pack into the petals of the corresponding basket in the box.
5. Finally, I recommend checking the free movement of the cores solenoids in hydraulic brains and ring the windings - about 27 ohms.
It is natural to maintain cleanliness when working. Be sure to rinse and clean the pallet. All repairs cost 8500r. + oil.
Video (click to play).
Before repairing the gearbox on Renault Laguna, it is necessary to carry out an initial diagnosis of the gearbox and make sure that it is faulty or requires repair.
If, after diagnostics, it turned out that the problem is actually in the gearbox, and not in the clutch, then we will repair the Renault Laguna gearbox within 2-4 days. The final date will depend on the availability of spare parts necessary for the repair of the Renault Laguna gearbox in our warehouse.
Before repairing the Renault Laguna gearbox, we remove the box, wash, disassemble and troubleshoot. It is after this that we announce the list and cost of spare parts for gearbox repair.
The warranty for the repair of the Renault Laguna gearbox is 1 year from the date of completion of the repair work and the transfer of the car to the owner.
The cost of repair (bulkhead) of the Renault Laguna checkpoint excluding spare parts:
I would like to share the results of an experiment on repairing automatic transmission AD-4. It's no secret that automatic transmission repairs start at $ 1,500, which is for the 19th unacceptably. In addition, I have the sad experience of double repairing automatic transmissions on Renault Laguna. Both times I gave away 1500+ - $ 100. Besides, you pay for details invented by the technical center. The car skidded in first gears. I rode on the third - fourth normally until the first traffic light, then everything is from the beginning. So the repair itself: The hardest part is to remove the box. Here alone can not cope - instructed the garage service (remove - deliver 7000r.) took the box and started.
1. The bagel has already been removed. We unscrew and remove the round cover from the seven screws. It is pulled out with two 10 bolts. You will see and understand.
2. We take out the so-called gravity head, carefully and horizontally - maybe crumble before you know how it works. And disassemble have to. The thing is apparently German.
3. The gravity pump is easy to disassemble and contains three clutch packs. In my the case was a burnt out middle package responsible for the second or third speed. Its replacement + support ring cost (1500 rub.) Spare parts in Transmatic.ru The support ring apparently always bursts into many pieces. There is one more clutch pack far inside the box but I did not touch him.
4. Now reassemble everything in reverse order. The main thing is to get it with everyone the petals of the extreme clutch pack into the petals of the corresponding basket in the box.
5. Lastly, I recommend checking the free movement of the cores solenoids in hydraulic brains and ring the windings - about 27 ohms.
It is natural to maintain cleanliness when working. Be sure to rinse and clean the pallet. All repairs cost 8500r. + oil. I did everything the first time and wrote it as best I could.
I would like to share the results of the AD4 automatic transmission repair experiment. It's no secret that automatic transmission repairs start at $ 1,500, which is not acceptable for Renault 19. In addition, I have the sad experience of double repairing automatic transmissions on Renault Laguna. Both times I paid 1400. 1600 $. In addition, you have to pay for the parts invented by the technical center.
The car skidded in first gears. At the third and fourth I drove normally until the first traffic light, then everything started all over again.
The hardest (hardest) thing is to remove the box. You can't do it alone here. I instructed the garage service (to remove - put 7000 rubles. (
1. The bagel has already been removed. Unscrew and remove the round cover with seven screws. It is pulled out with the help of two 10-bolts. You will see - you will understand.
2. Remove the so-called "gravity", carefully and horizontally - it may crumble before you know how it works.
3. "Gravity" is easy to disassemble and contains three packages of clutches. In my case, there was a burnt out middle packet responsible for the second or third speed. Its replacement + support ring cost (1500 rubles (
60 $)). The support ring always bursts into many pieces. There is another clutch pack far inside the box, but I did not touch it.
4. Assemble in reverse order. The main thing is to precisely get all the petals of the extreme clutch package into the petals of the corresponding basket located in the box.
5. Check the free movement of the solenoid cores in the hydraulic brackets, ring the windings (
Observe cleanliness during work. Be sure to rinse and clean the pallet.
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Disassembly of the hydraulic control plate.
We unscrew one thick plate.
Unscrew the oil pressure modulator.
We unscrew and take out the control valves.
We unscrew the second plate.
We measure the distances of the adjusting screws and mark.
Gear selector valve pistons.
We wash everything, blow it with air and put it aside until the box is assembled. We check all the valves of the modulator. I washed the valves, because the cores went tautly in them. An electrical circuit was found for the box, I checked the braid. It turned out that the braid had been cut in three places and spliced with cloth tape. I found an open in the second gear solenoid control. Rebuilt the braid as expected. When the rest of the parts arrived, I started assembling the box.
Box body after washing and welding.
Replacing differential bearings.
The satellites are easy to remove.
Install the differential in the crankcase. Insert the axes.
We tighten the differential bearings and counter.
We install the speed sensor with a new cuff - an O-ring.
We assemble the hydraulic control plate. Replaced only the filter.
Installing the stove in the box.
Oil pressure sensor. Unfortunately, I didn't have a black sealant. Collected on red.
We disassemble the oil pump and change the oil seal.
New and old clutches, new and old steel ring and new locking ring.
Clutch package 1-3 gears with new clutches.
In the center, you can see the screw locking the shaft nut.
We put the gear selector rod, parking stopper, gear and tighten the nut.
We assemble the drive shaft in the reverse order.
New oil pump gasket.
The oil filler plug has been modified to fit the dipstick.
New heat exchanger rings.
I put the box in the car. Everything worked. It does not give errors, it switches smoothly, smoothly.
Renault is a large automotive concern with a history of more than a hundred years. The range of automatic transmissions used by Renault is quite wide. These are the developments of firms specializing in automatic transmissions and joint developments with the Peugeot / Citroen concern. Renault has different automatic transmissions, there are both "indestructible" models and cheap, unreliable ones.
Renault cars have different automatic transmission models
Renault Megan is also equipped with a JF011E CVT. This is a successful development of the Nissa subsidiary Jatco. Installed on cars with engines up to 2.5 liters. The JF011E variator is considered one of the best in the world and differs from analogues in its reliable design, unpretentiousness and cheap price. Among continuously variable transmissions, JF011E and its modifications are real monopolists, in fact, they have captured the market.
This variator is highly reliable and used correctly. If the Renault Megan automatic transmission undergoes timely maintenance, it can be operated over 250,000 kilometers. The Megan CVT repair rate is very low.
Most of the cases of maintenance and repairs of the Renault Megan variator end with the change of oil, filters and sump gaskets. Filters vary in size or due to different pallet designs.
The Renault Megan CVT filter is reusable and changes only when the oil is burnt. The remains of the adhesive layer of the clutches cannot be removed from the filter. Changes annually or every 30,000 kilometers.
Oil purity is critical for the Renault Megan CVT. Working on old oil is invisible to the driver, but will quickly destroy the variator.
Renault Megane is equipped with a CVT JF011E
The stepper motor (responsible for adjusting the position of the belt and the gear ratio) quickly develops its resource. After running out, the variator stops adjusting the speed and freezes at one number. Fortunately, its replacement and diagnosis is possible without removing the box.
High pressure oil pump. With its abnormal operation, the pressure decreases and the belt begins to slip. Only pump replacement helps.
The big problem with the Renault Megan CVT is the breakage of the belt holder - they are not produced, they are not restored.
Teflon rings are also a consumable item. Without their timely replacement, the clutches quickly burn and the box needs repair.
When the Renault Megan CVT overheats, the speed sensor depletes its resource.
The belt is the most important consumable; only BOSCH produces them. In comparison with the first generations of variators, the durability of the belt has increased significantly. But still it is not more than 150,000 kilometers. When used in winter, the belt breaks down a little earlier. If you bring the box to the point where the belt develops, things will get even worse.
Renault Megane with CVT JF011E
It is very dangerous to drive on an unheated CVT, especially in winter. As well as overheated. For frying regions, it is better to equip the variator with an additional cooling radiator. Do not drive the CVT over 160 km / h.
Renault Logan comes with an AL4. This is a very old development of the Peugeot / Citroen concern, which began to be produced in 1999. The AL4 automatic transmission is designed for small cars with front-wheel drive. The design of the Logan automatic transmission is very simple and has a low cost price. It was intended to accustom European consumers to automatic transmissions.
One of the main disadvantages of the Logan automatic transmission is the use of a heat exchanger. The transmission is initially operating in extreme thermal conditions and is very sensitive to overheating. The increased risk of overheating occurs for these transmissions after 80,000 kilometers on a new box. When using the Logan automatic transmission without overheating, it is practically eternal. Therefore, during the first overhaul, the heat exchanger is replaced with a radiator.
Mineral oil is used for this box.
Renault Duster automatic transmission is a modified DP0 transmission called DP8.
Renault Duster is equipped with DP8 automatic transmission
This automatic transmission is mainly used for all-wheel drive vehicles. Many design and technical flaws in the DP0 transmission for Renault Duster have been eliminated.
The weak point of the Renault Duster automatic transmission is the pressure solenoid regulator. Their resource is rather small, they work in a tense mode, in comparison with the rest of the solenoid group. If the pressure solenoid on the Renault Duster automatic transmission fails, it will begin to supply increased pressure in the interior of the automatic transmission, which can lead to its rapid failure.
The bushings in the Renault Duster automatic transmission function as seals. When these bushings wear out, they begin to leak oil, which leads to a whole chain of problems inside the Renault Duster automatic transmission. The packets begin to receive less pressure, the computer opens the solenoids to the full cross-section, the pump starts constantly operating at full power. As a result, the clutches are quickly destroyed on the Renault Duster automatic transmission, which then contaminate the inside of the box with their remnants. The pump depletes its resource very quickly, and the insides of the valve body are quickly washed out by large streams of contaminated oil due to abnormal operation of the solenoid. With any repair of the Duster automatic transmission, they must be diagnosed with their condition. At the first signs of wear, they are replaced in a set.
The hydraulic unit really does not like dirty oil and overheating. From overheating, the metal of the plate can lead, the valves will wedge, it can break off the springs.
If the problem is started and the box has been operating for some time on dirty oil or under high pressure, then it is necessary to change the clutches. Their wear occurs evenly, even under extreme conditions, and they are changed as a set. To destroy the clutches, just a few hours of driving on an overheated box is enough. In such a situation, the brake band is usually also changed.
With aggressive acceleration and slipping, O-rings (rear covers, for example) often fail, which can also lead to oil starvation.
Since 2000, Renault Laguna has been equipped with a five-speed automatic AW55-50SN from Aisin. Initially, it was run in Volvo cars and in the first years a lot of problems and shortcomings were solved. At first, the Renault Laguna automatic transmission often suffered from the ingress of antifreeze into the oils. By themselves, the boxes from Aisin are usually ideal, but when you interfere with their settings for the cars of other engineers, non-ideal settings and modes can be selected for it.
Renault Laguna is equipped with a five-speed automatic transmission AW55-50SN
Renault Laguna hydraulic plates did not live long before the last plate modification. There are many modifications. A common symptom of abnormal operation of the Renault Laguna valve body is premature failure of the iron due to insufficient pressure. Dirty oil can eat up the valve ports, causing the plungers to wedge and the gearbox to suffer from oil starvation. The main symptom is usually bumps and delays when shifting into third gear.
Renault Laguna hydraulic plates are usually not rebuilt. Even their diagnostics are very complicated and expensive, not to mention repairs. Therefore, it is best to periodically clean the hydraulic plate and change the oil. If the valve body is not serviced, then the abnormal operation of the valve body can damage the insides of the Renault Laguna box.
Problems with the pump follow in popularity. Usually the pump cover gland and bushing are changed. Usually they are changed when a Renault automatic transmission overhaul is required.
During the overhaul of the Renault Laguna automatic transmission, the torque converter must be repaired. For older machines, it is also necessary to replace clutches, steel discs and clutches.
During overhaul of automatic transmission AW55-50SN, it is necessary to repair the torque converter
The automatic transmission iron is very reliable, usually only a set of bushings is ordered.Aggressive driver can kill the rear planetary gear. The wear of the drums occurs due to the abrasion of the Teflon rings, which leads to burnout of the clutches.
These automatic transmissions in the hands of a calm and disciplined driver will drive for a very long time.
Since 2007, Renault Laguna has been equipped with a six-speed automatic transmission JF613E from Jatco. It is found on Nissan and Mitsubishi cars with engines up to 3.5 liters.
This automatic transmission is a direct competitor to Toyota transmissions, surpassing them in terms of cheapness and reliability. The term for the first overhaul usually occurs after 200,000 with a timely oil change.
This box, like all modern ones, combines an electronic control unit and a valve body in one case. This is its main problem - the more complex the node, the less reliable it is. For this class of automatic transmission, the torque converter lock is rarely activated and is used sparingly. Solenoids live longer than usual, usually before the first major overhaul. The computer and the firmware do not use the box to its fullest, thereby greatly extending its resource, which is not typical for modern machines.
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Since 2007, Renault Laguna has been equipped with a six-speed automatic transmission JF613E from Jatco
Nissan engineers have introduced several developments into this box that have improved acceleration and reduced fuel consumption. This kills the torque converter friction lining faster, which in turn quickly contaminates the oil. But refer only to automatic transmissions, which are exposed to unnecessary stress due to aggressive drivers.
The iron of this automatic transmission is very reliable and is designed with a huge margin of safety. The oil changes every 50,000-60,000 kilometers.
Renault automatic transmissions are quite complex. With your own hands, you can replace the oil filter and oil. If the first symptoms of an automatic transmission malfunction appear, you must immediately go to the service and make diagnostics. It is better to entrust Renault automatic transmission repair to experienced professionals.
