Car owners Skoda Octavia A5 Often faced with the dilemma: whether to change the transmission fluid in the automatic transmission, if the manufacturer claims its โlifetimeโ service life. The reality is that the oil resource is limited, especially when driving in an urban cycle with frequent traffic jams. Ignoring this procedure can result in expensive repairs to the hydraulic unit or replacement of the entire unit.
The replacement procedure has its own characteristics depending on the type of box installed: a classic hydraulic transformer. 09G or robotic box DSG. In both cases, it is critical to follow the rules, use the correct tolerances and control fluid levels. Mistakes at this stage can cost much more than the maintenance work itself.
Replacement rules and selection of suitable liquid
Many car owners mistakenly believe that since the manufacturer does not specify the frequency of replacement, maintenance is not required. This is a dangerous misconception, especially for mechanical machines in the series. Aisin 09G, which were often installed on Octavia A5 with engines 1.6 and 1.8. The transmission fluid loses its properties, is contaminated by the products of wear of frictions and metal shavings.
To extend the service life of the unit, it is necessary to carry out a partial or complete oil replacement every time. 60,000 km mileage. When choosing a lubricant, you should focus on the original specifications. For the box. 09G fluid is required with tolerance VW TL 52162And for robots. DSG Strictly specific compositions corresponding to tolerance G 052 182 or analogues.
- ๐ง Use only certified oils tested in the laboratory.
- ๐ข๏ธ For partial replacement, about 3-4 liters of liquid will be required, for full - up to 6 liters.
- ๐ซ Do not mix different oils, even if they have similar specifications.
The choice between full and partial replacement depends on the condition of the old fluid. If the oil is black and has a burning smell, a partial replacement may not bring the desired result due to mixing new and old liquids. In such cases, it is better to use the apparatus for full under pressure.
โ ๏ธ Attention: The use of non-original oils labeled โanalogueโ can lead to rapid wear of friction linings and loss of sealability of the ossels.
Necessary tools and preparation for work
Before you get to work, make sure you have all the tools you need. To access the gearbox pallet, it is often required to remove the engine mud flap and possibly the right front wheel. The standard set includes a dynamometer key, a set of heads and a funnel with a long hose.
A critically important element is a special key for the drain plug on the pallet or for the screw on the crankcase. On boxes. 09G Hexagon is often used on 17 mm Or a special key for level jam. Do not try to unscrew the cork with a conventional wrench - there is a risk of tearing the edges, which will lead to serious problems.
- ๐ Dynamometer key for precise tightening of pallet bolts.
- ๐งด A container for draining waste liquid with a volume of at least 5 liters.
- ๐งฝ New pallet gaskets and a drain plug sealing ring.
It is also necessary to prepare the car for work. It should stand on a flat surface, and the engine should be heated to operating temperature. This is necessary in order for the viscosity of the oil to meet the conditions of the level check.
โ๏ธ Preparing for an oil change
Oil replacement procedure in the automatic transmission 09G
Replacement process on a classical machine Aisin 09G It starts with the draining of the waste liquid. Open the hood and find the pan of the gearbox. The drain plug is at the bottom of the pallet. Substitute the container and gently unscrew the plug, making sure that hot liquid does not get on the skin.
After a full drain, the pallet must be removed. This is done by unscrewing bolts around the perimeter. Be careful: inside the pallet there is a magnet for collecting metal shavings. It must be thoroughly cleaned of plaque. Also, check out the rough cleaning filter, which is usually built into or attached to the pallet.
If the filter comes with a pallet (single unit), replace it entirely. If the filter is separate, carefully remove it, clean the seat and install a new one. After that, the pallet is thoroughly washed with a solvent, degreased and installed back with a new gasket.
- ๐งผ Clean the magnets of metal shavings using a cloth and solvent.
- ๐ฉ Tighten the pallet bolts cross-cross with the force specified in the service book (usually
10 Nm). - ๐ Install a new sealing ring on the drain plug before twisting.
The pouring of new liquid is made through a technological hole, where the control stopper level is screwed. Use a long funnel and hose to reach the filler hole. Pour the oil until it starts to flow out of the hole without pressure.
โ ๏ธ Warning: Never twist the control plug "dry" - this can lead to overflow or underwater, which is critical for the operation of the hydraulic transformer.
- Up to 50,000 km
- 50,000 - 100,000 km
- More than 100,000 km
- I don't know the exact mileage
Features of replacement on DSG boxes
Robotic boxes DSG DQ200, DQ250 have more complex design and strict replacement requirements. Here it is important not only to replace the oil, but also to pump it correctly to avoid air traffic jams in the hydroblock. Nana Octavia A5 Most often there are boxes with 6 or 7 steps.
To work with DSG A diagnostic scanner is often required to monitor the temperature of the oil. The level is checked at a certain transmission temperature, usually in the range of 35ยฐC up to 45ยฐC. If the temperature goes beyond these limits, the level will be misidentified, leading to problems with gear shifting.
The procedure includes unscrewing the level plug, pouring the liquid until it starts to flow out and subsequent tightening of the plug. In some cases, cyclic gearshifts are required to distribute the oil over the system. This is done using diagnostic equipment or manually when the engine is running.
- ๐ก๏ธ Control the temperature of the oil through the OBD2 diagnostic port.
- ๐ Switch gears from position
PinR,N,Dseveral times to run the system. - ๐ ๏ธ Use only the original level cork pad, as it is disposable.
Pay special attention to the state of clutch and mechatronics. If jerks or kicks are felt when driving, changing the oil may not solve the problem and will require clutch adaptation or mechatronic repair. In this case, it is better to contact the specialized specialists.
What to do if the level stopper does not unwind?
If the cork is boiling, do not use excessive force. Try to warm up the connection site with a building hair dryer or use penetrating lubricant. In extreme cases, it may be necessary to drill the plug, but this is an extreme measure that is best entrusted to professionals.
Level check and final settings
Proper level check is the key to a long life of the transmission. After pouring the oil, start the engine and let it work at idle speeds. Make sure that the level of the liquid is normal: it should flow out of the cork hole, but not beat with a jet.
If the fluid leaks out too much, then overflow. If it doesn't flow at all, it's not too much. In both cases, the volume must be adjusted. When the swelling is over, the swelling is over. After that, the plug is twisted with a certain effort and a new gasket is installed.
Always check the technical documentation for a specific modification of the vehicle. An error in this point can lead to foaming of the oil and loss of pressure.
- โ Check for no stains around the pallet and drain plug after the first trips.
- ๐ Take a ride in the car, switching all gears to make sure the smoothness of the work.
- ๐ Write down the date and mileage of the oil change for the next service.
After completion of the work, be sure to remove all tools and spilled liquid from the bottom of the car. The residues of oil on the engine protection can cause a fire in case of contact with the hot elements of the exhaust system.
Controlling the oil temperature and using original gaskets are the main factors for successful replacement on DSG boxes.
Typical mistakes and their consequences
Despite the apparent simplicity of the procedure, many car owners make gross mistakes. The most common problem is using the wrong amount of oil or the wrong type of liquid. This leads to rapid overheating of the box and failure of the hydrotransformer.
Another common mistake is ignoring the filter. If the filter is clogged with dirt, the pressure in the system drops and the frictions begin to slip. As a result, the box begins to โkickโ and jerks to switch gears. Ignoring this signal can lead to complete failure of the automatic transmission.
Incorrect tightening of the pallet bolts can also cause problems. Too weak a puff will lead to leakage, and too strong - to deformation of the pallet and damage to the gasket. In both cases, re-disassembly and replacement of parts will be required.
โ ๏ธ Note: Using oils with incorrect viscosity can cause the box to not be able to gain the right pressure to turn on the gears, especially on a cold engine.
It is also worth noting that on cars with high mileage, oil replacement can cause problems if the old oil has already served as a seal for worn-out oil oils. In such cases, replacing with fresh detergent oil can lead to leaks. This is a rare but possible scenario that needs to be considered.
| Parameter | Value for 09G | Value for DSG (DQ250) |
|---|---|---|
| Liquid type | VW TL 52162 | G 052 182 |
| Volume (partial) | 3.5 liters | 4.5 liters |
| Volume (full) | 6.0 litres | 7.0 liters |
| Check temperature | 40-50ยฐC | 35-45ยฐC |
FAQ: Frequently asked questions
Do I need to change the oil in the automatic transmission if the car is running smoothly?
Yes, I will. Smoothness does not guarantee the absence of wear of internal components. Wear products accumulate in the oil and clog the channels of the hydroblock, which will lead to problems over time.
Can I use a different brand of oil if it meets the tolerance?
Theoretically, it is possible, but in practice it is better to use the original oil or proven analogues recommended by the dealer. Differences in additives can affect the operation of frictions and hydroblock.
What to do if jerking occurs after changing the oil?
This could be a sign that the old oil was performing a sealing function, or the system was not pumped properly. Try adapting the box through the scanner. If the problem does not disappear, contact the service.
How long does it take to change the oil?
Partial replacement takes about 1-1.5 hours. A complete replacement with washing can take up to 2-3 hours. On DSG boxes, the procedure can be longer due to the need for temperature control.
Can I change the oil without the lift?
This is highly discouraged. Access to drain and fill plugs is often difficult, and without a lift or observation pit, it is impossible to perform the work qualitatively. Errors in level checks can cost the gearbox.