In order to extend the service life of the automatic transmission of a Toyota Corolla, it is necessary to change the oil in a timely manner. Often, when driving, you begin to feel that the transmission is not quite soft, and strange sounds appear when changing gears. During operation, the lubricating fluid loses its properties and does not provide protection for internal mechanisms. Changing the oil in the automatic transmission of a Toyota Corolla 150 can be done in a specialized service center using special equipment or independently in a pit.
To change the oil in a Toyota Corolla automatic transmission, you can choose alternative lubricants.
What kind of oil to fill
It is best to fill the original oil into the automatic transmission, recommended by the manufacturer: Toyota ATF Type T-IV. You can also choose an analogue of ATF Totachi Type T-IV. If necessary, you can use any type of Dextron 3 from a reliable manufacturer. In addition to the lubricant, it is necessary to replace the oil filter, the drain plug O-ring and the pan gasket.
Necessary components for work
To replace the transmission, it is not oil that is used, but a special composition intended specifically for this unit. The container label for this liquid bears the designation ATF (automatic transmission fuid). This liquid is able to function under more difficult conditions, withstanding significant loads. When the gearbox is operating, the operating temperature of the parts reaches 300-400*C.
The torque converter experiences heavy loads: when the car is moving, the temperature of the systems reaches 150*C.
During long-term operation of the gearbox, volatile components evaporate from the solution used for lubrication and cooling, and the composition of the transmission fluid changes, which is unacceptable.
The fluid poured into the Toyota Corolla automatic transmission performs a dual function:
- heat removal from the box parts to the external environment;
- lubrication of contacting parts.
To stabilize the solution at high temperatures and stabilize ongoing processes while preventing oxidation, special additives are added that prevent wear of parts and allow mechanisms to function normally at temperatures from -40* to +150*C.
During long-term operation of the gearbox, volatile components evaporate from the fluid used for lubrication and cooling, and the composition of the transmission fluid changes, which is unacceptable for the normal operation of the mechanisms.
The type of fluid used for each vehicle's transmission is indicated in the factory documents. The most commonly used type of transmission fluid is DEXRON (modifications I, II, III).
When completely replacing the fluid, it is imperative to determine the labeling of all the necessary components that may be needed for replacement: oil filter, O-rings and gaskets.
Typically, synthetic solutions used for transmission are 2-3 times more expensive than mineral solutions.
It must be taken into account that fluids are poured through the level measurement hole in the gearbox, and in some brands of cars using a control plug in the automatic transmission box.
Oil volume in box
To completely replace the transmission fluid, you will need about 8 liters, but you need to consider how much oil is required if the procedure is performed independently. The volume in this case is approximately 4 liters. Half will remain in the internals of the automatic transmission. Typically, a complete replacement is carried out when the transmission is repaired and it needs to be disassembled. The driver has the opportunity to check the amount of lubricant in the box. Checking the oil level is done with a special dipstick.
On a cold engine, the value should not be lower than o. After warming up the automatic transmission, the lubricant volume indicator should be about.
Practical advice on choosing automatic transmission oil
When changing the oil yourself in an automatic transmission of Toyota Corolla in bodies 120, 150, you need to approach the choice of consumables wisely. The further service of the unit depends on their quality. The choice of transmission brand must correspond to the modification and year of manufacture of the Japanese. For the Toyota Corolla E120, produced between 2000 and 2006, and the E150 model, the production of which continued until 2011 - 2012, it is recommended to buy different “transmissions”.
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Do-it-yourself complete and partial oil change in the Polo Sedan automatic transmission
When purchasing oil for a Toyota Corolla automatic transmission, you need to pay special attention. Even if you plan to update the oil not with your own hands, but with the help of service station specialists, you need to purchase all the necessary materials yourself in trusted stores. This way, the risk of purchasing a low-quality product will be significantly reduced.
Original oil
An original transmission is a product of a certain brand that was specifically designed for a given vehicle and recommended by the manufacturer.
This type of oil for the Toyota Corolla 120 automatic transmission is Toyota ATF Type T-IV. For cars in the 150 body, it is recommended to use Toyota ATF WC. Both types of fluid are interchangeable, and if necessary, their partial mixing in one automatic transmission is allowed.
The prices for the original product are very affordable. The cost of a 1-liter plastic canister with code 00279000T4-1 is 500 – 600 rubles. For a four-liter canister with article number 08886-01705 or 08886–02305 you will have to pay from 2 to 3 thousand rubles. The price range is explained by different manufacturers and different packaging.
Analogs
Any original products are copied by other manufacturers and released under their own brand. If all necessary standards are met, the resulting analogue is almost no different from the original. But the cost of the goods may be significantly reduced. Below are the brands of transmission fluid for automatic transmission Toyota Corolla 120/150.
| The product's name | Canister volume in liters | Average retail price in rubles |
| IDEMITSU ATF | 4 | 1700 |
| TOTACHI ATF TYPE T-IV | 4 | 1900 |
| GT ATF T-IV Multi Vehicle | 1 | 500 |
| GT ATF T-IV Multi Vehicle | 4 | 2000 |
| TNK ATF Type T-IV | 4 | 1300 |
| RAVENOL ATF T-IV Fluid | 10 | 4800 |
Replacement algorithm
Even a novice driver can cope with this work, because changing the oil in an automatic transmission is quite simple, the main thing is to follow the instructions. Do-it-yourself replacement does not require special equipment. You need to go to a pit or a lift. The procedure takes one to two hours if you have some skill. You need to prepare in advance four liters of original oil, a filter, gaskets for the filter and drain plug, a container for draining old oil of more than five liters, and a set of keys. Changing the automatic transmission oil in a Toyota Corolla 120 is carried out as follows:
- Before performing automatic transmission maintenance, you need to warm up the car for ten to fifteen minutes. Next, you should put the car on a pit or lift. Then you need to unscrew the pan plug and wait until the liquid completely drains through the drain hole into the prepared container.
- To remove the automatic transmission pan, unscrew the bolts, leaving the two opposite ones attached. Disconnect the pan gasket. Next, remove the pan completely. This may leave about 400 ml. hot liquid.
- It becomes possible to remove the differential magnetic box. This will add a little more oil. We clean the magnetic plug and magnets with gasoline. Then we wipe them with a dry cloth and carefully return them to their place.
- We also clean the tray. After this, you can install it back, after replacing the gasket. We tighten the bolts diagonally gradually one after another so as not to strip the threads.
- Now you can tighten the drain plug with a new gasket.
- In the engine compartment we find a hole for the control dipstick. Fill in the same amount of liquid as flowed into the drain container (about 3.5 liters). Overfilling of oil should be avoided. Otherwise you will have to remove the excess with a syringe. It is much easier to add the missing transmission lubricant.
- We start the engine and warm up the automatic transmission. In this case, you should move the switch knob to different modes with a delay of several seconds in each. We repeat this operation three times.
- With the engine running, carefully check the lubricant level. If necessary, add or remove some of the liquid.
- Don't forget to inspect the transmission pan for leaks. Over-tightening the bolts can cause leaks.
Changing the oil in a Toyota Corolla automatic transmission - instructions
Step-by-step algorithm for changing the oil in the automatic transmission of a Toyota Corolla:
1.Before changing the oil, the car should be thoroughly warmed up. It is better to do this after a long trip.
2.Put the car on an inspection hole or overpass. It is most convenient to change the oil on a special lift.
3. Place a metal or plastic container with a capacity of more than 3 liters under the drain hole of the oil pan. Unscrew the plug on the pan. Completely drain the old oil.
CAREFULLY! The cork may be hot! Never use glass jars or bottles to drain used oil! They break easily. Slipping on spilled oil can cause serious injury. Take precautions to avoid getting burned by the heated oil and hot pan.
4.The pallet must be removed. The most convenient way to do this is with a special wooden spatula. Unscrew the magnetized differential plug.
5. Wash the automatic transmission gasket, magnets, and internal planes of the pan with gasoline or acetone. Wipe dry with a clean rag. It is best to replace the gasket with a new one.
6.Unscrew the old oil filter. In its place, install a new filter along with the sealing ring. Tighten with a wrench. Return the magnets to their original positions. Install the pan screws and tighten with a wrench. Also tighten the pan plug with a new gasket with a wrench.
7. Clean the oil filler neck of the automatic transmission from dirt. Using a clean funnel, add fresh oil to 1 cm below the mark on the dipstick. After pausing for 10 minutes, carefully adding oil, bring its volume to normal.
After replacing the oil in the Toyota Corolla box yourself, you should remove the car from the lift and drive it 500 meters forward and backward. Then check the oil level on the dipstick. If necessary, repeat the procedure several times. For cars with automatic transmission, the oil level in the gearbox must be strictly according to the mark on the housing. By changing the oil in a timely manner, you will ensure long-term trouble-free operation of your car's transmission.
Algorithm of actions when changing the oil in right-hand drive cars
Changing the oil in a right-hand drive Toyota Corolla automatic transmission has the same procedure as in European cars. Some Corolla models were available with all-wheel drive. When carrying out the oil change procedure on these cars, you should be careful when removing the automatic transmission pan, not to confuse it with the bottom of the transfer case.
Another important difference between the design of Japanese automatic transmissions is the presence of a separate cooling radiator, which contains part of the fluid. It is not possible to drain it using a drain plug. To do this, you should carry out a complete oil update.
