ATF, Checking Level and Correcting

ATF, Checking Level and Correcting

Test Conditions

• The transmission must not be in emergency running

• Move the vehicle onto a 4-column shop hoist or over a work pit so it is completely level.

• Transmission is in "P".

• The parking brake button should be activated to close the electromechanical parking brake.

• Exhaust hose/-hoses of an exhaust extraction system connected.

• The Air conditioning (A/C) and the heater are off.

• Vehicle diagnostic tester is connected.

• The ATF temperature must not be higher than 30 °C (86 °F) at the beginning of the test. Let the transmission must cool down first, if necessary.

• Read the ATF temperature on the vehicle diagnostic tester.

• The ATF level will vary depending on the temperature of the ATF.

• It is possible to overfill the ATF if the level is checked when the temperature is too low.

• It is possible to under fill the ATF if the level is checked when the temperature is too high.

• Overfilling or underfilling will influence the function of the transmission.

=> [ ATF Level, Check and Correct, for All Engines except 12-Cylinder Engines ]

=> [ ATF Level, Check and Correct, for Engines with 12-Cylinder Engines ]

ATF Level, Check and Correct, for All Engines except 12-Cylinder Engines

Special tools, testers and auxiliary items required

• Vehicle Diagnostic tester

• Oil Collecting and Extracting Device (V.A.G 1782)

• Adapter for Oil Filling (VAS 6262 A)

• Adapter, Jointed Hose (VAS 6262/5)

• Original 1 liter ATF container

• Protective goggles

Procedure

- Follow all test conditions and instructions.

Determine the ATF Temperature

- Select the following menu options under "Functions/Component selection" in Guided Fault Finding on the vehicle diagnosis tester:

• Drive

• 0BK Transmission

• 01-On Board Diagnostic (OBD) capable systems

• 02-Transmission electronics

• 02-Transmission electronics, functions

• 02-Measured values

- Select Transmission fluid temperature from the list.

- Check the ATF temperature.

ATF, Checking Level and Correcting

• Tightening specification, refer to => [ Draining and Filling Plugs Overview ] Draining and Filling Plugs Overview.

• The ATF level is checked at the ATF check and fill hole.

• The ATF level is correct if a small amount of fluid drips out of the inspection and fill opening (this is normal as the fluid expands as it heats up) at an ATF temperature between 35 ° and 45 °C (95 ° and 113 °F) (for hot countries 50 °C (122 °F)).

• Replace the plug for the ATF check and fill hole.

There is a risk of damaging the transmission.

• Only use the ATF available as a replacement part for the automatic transmission 0BK.

• Using other fluids can cause malfunctions or transmission failure.

• For the correct allocation, refer to the Parts Catalog.

• The ATF filler adapter must be clean. Do not mix the ATF any other fluids.

- Secure the ATF container and the (VAS 6262 A) on the vehicle as high as possible; for the correct ATF specification, refer to the Parts Catalog.

There is a risk of damaging the transmission.

• Engine must not be started if only a small amount or no ATF is in the transmission after repair work or after significant ATF loss.

• In this case, pre-filling is necessary. Refer to => [ ATF, Draining and Filling ] ATF, Draining and Filling.

- Remove the rear noise insulation - 2 -..

- Start the engine in "P".

- While depressing the brake pedal and with the vehicle idling, shift through all the selector lever positions ("P", "R", "N", "D", "S") leaving each position engaged for at least 10 seconds.

- Move the selector lever to "P".

- Run the engine at idle.

- Place the (V.A.G 1782) under the transmission.

Danger of eye injury.

• Wear protective goggles.

- When the ATF reaches 35 °C (95 °F), remove the plug - arrow A - and drain any excess ATF.

• If the ATF starts to leak out of the ATF check and fill hole - arrow A - before it reaches 40 °C (104 °F), then the ATF level is OK.

• If no ATF flows out of the ATF-check and fill opening before the ATF has reached 40 °C (104 °F), then top off the ATF.

• The ATF check and fill hole must be sealed off again before the ATF reaches 45°C (113 °F) (50°C (122 °F) for hot climate countries).

- Tighten the new plug for the ATF check and fill hole. The ATF level test is now completed.

- Install the noise insulation..

Topping Off the ATF

• If no ATF leaks out of the ATF check and fill hole - arrow A - before the ATF reaches 40 °C (104 °F):

- Fill the ATF using the adapter until the ATF starts to leak out of the check and fill hole.

• Too little or too much ATF will impair the transmission.

- Tighten the new plug - arrow A -. The ATF level test is now completed.

- Install the noise insulation..

ATF Level, Check and Correct, for Engines with 12-Cylinder Engines

Special tools, testers and auxiliary items required

• Vehicle Diagnostic Tester

• Oil Collecting and Extracting Device (V.A.G 1782)

• Adapter for Oil Filling (VAS 6262 A)

• Socket Wrench SW19 (T10455) and compressed air gun

• Adapter, Jointed Hose (VAS 6262/5)

• Original 1 liter ATF container

• Protective goggles

Procedure

- Follow all test conditions and instructions.

There is a risk of damaging the transmission.

• Engine must not be started if only a small amount or no ATF is in the transmission after repair work or after significant ATF loss.

• In this case, pre-filling is necessary, refer to => [ ATF, Draining and Filling ] ATF, Draining and Filling.

- Remove the rear noise insulation - 2 -..

There is a risk of damaging the transmission.

• Only use the ATF available as a replacement part for the automatic transmission 0BK.

• Using other fluids can cause malfunctions or transmission failure.

• For the correct transmission code allocation, refer to the Parts Catalog.

• The ATF filler adapter must be clean. Do not mix the ATF with any other fluids.

- Secure the ATF container and the (VAS 6262 A) on the vehicle as high as possible; for the correct ATF specification, refer to the Parts Catalog.

• For vehicles with a 12-cylinder engine, the space between the exhaust system and the sealing plug - A - for ATF control and the fill opening is very small.

• Extra work steps must be undertaken because of the risk of getting burned by the exhaust system.

• It has been designed with an outer hex head to make it easier to assemble the ATF-control and fill-opening plug.

• In addition, the right cylinder bank must be switched off during the ATF-level test so that the exhaust system can cool down. This is the only way the ATF level can be tested and correctly adjusted.

• The procedure and checking the conditions involved in switching the right cylinder bank off will be introduced and tested on the vehicle diagnostic tester in "Guided Functions".

Introduce the ATF-Level Test Via the Vehicle Diagnostic Tester

- On the vehicle diagnostic tester under Guided Functions in the vehicle system 02 - Transmission Electronics the "Guided Functions" 02 - ATF-Level Test with 12 Cyl. Select Engine.

Conditions:

• Follow all of the instructions regarding the vehicle diagnostic tester very carefully so that the "Guided Functions" can be successfully concluded.

The vehicle diagnostic tester will automatically select the proper way to switch off the right cylinder bank, which can occur in various ways, depending on the software version. Various decisions must be made during the process below:

• Manual shut-off via mechanical intervention, includes pulling the crankcase housing ventilation hose off

• Electronic shut-off, which is governed by the software: the ATF-level test can continue to be carried out via the vehicle diagnostic tester

Shutting Off the Right Cylinder Bank Manually

- Carefully remove the engine cover from the four fasteners one after the other - arrows -. Do not jerk or pull it to one side.

- Run the engine at idle.

• Hose - 1 - for the crankcase ventilation must be removed to switch off the right cylinder bank if the engine is running. The vehicle diagnostic tester will indicate the right time to remove the hose. The exhaust temperature has to be the proper temperature to do this. But at the same time, the ATF temperature cannot be too high, either.

- Remove the hose for crankcase ventilation - 1 - by pressing on the release buttons - A - slowly removing the hose in direction of - arrow -.

• The Engine Control Module (ECM) will store a fault entry in the Diagnostic Trouble Code (DTC) memory when the crankcase ventilation hose - 1 - is removed. At the end, the vehicle diagnostic tester will automatically delete the fault stored in the DTC memory via the "Guided Functions" that is currently running.

- Check the ATF level and correct if necessary.

ATF, Checking Level and Correcting

• Tightening specification, refer to => [ Draining and Filling Plugs Overview ] Draining and Filling Plugs Overview.

• The ATF level is checked at the ATF check and fill hole - A -.

• The ATF level is correct if a small amount of fluid drips out of the inspection and fill opening (this is normal as the fluid expands as it heats up) at an ATF temperature between 35 ° and 45 °C (95 ° and 113 °F) (for hot countries 50 °C (122 °F)).

• Replace the plug for the ATF check and fill hole.

- Run the engine at idle.

- Follow the instructions in the vehicle diagnostic tester exactly.

• Keeping the brake pedal depressed will cause the transmission to use the vehicle diagnostic tester to check, shift through and maintain each of the "P", "R", "N", "D/S" gears. This has to be done to distribute the ATF evenly in the transmission.

• This also causes the ATF temperature to display.

Danger of getting burned.

• Wear safety gloves.

- Use compressed air as an added means of cooling off both right front exhaust pipes that are near the locking bolt for ATF control and the fill opening, and carefully check the temperature in the front exhaust pipes.

• Switching off the right cylinder bank will also help the exhaust system cool down by itself. Compressed air must also be used to bring the ATF temperature down faster, so that it does not exceed 35° C (95 °F).

• Both right front exhaust pipes have to be cooled to the point that there is no longer any danger of getting burned by them. If the front exhaust pipes do not get noticeably cooler, then use the vehicle diagnostic tester to check the shut-off conditions; repeat the shut-off process, if necessary.

- Place the (V.A.G 1782) under the transmission.

Danger of eye injury.

• Wear protective goggles.

- When the ATF reaches 35 °C (95 °F), remove the sealing plug for the ATF check and fill hole - A - and drain any excess ATF.

• If the ATF starts to leak out of the ATF check and fill hole before it reaches 40 °C (104 °F), then the ATF level is OK.

• If no ATF flows out of the ATF-check and fill opening before the ATF has reached 40 °C (104 °F), then top off the ATF.

• The ATF check and fill hole must be sealed off again before the ATF reaches 45°C (104 °F) (50°C (122 °F) for hot climate countries).

- Use (T10455) and a torque wrench to tighten the new sealing plug - A - for ATF check and fill hole.

Additional work steps are listed below for vehicles where the right cylinder bank has been shut off manually.

- Connect the hose - 1 - for the crankcase ventilation and have it secured.

- In order to prevent damage, do not hit the engine cover with your fist or tool.

- First, use both hands to press down on the engine cover on the back on the ball pins; then, use both hands to press down on the front on the ball pins, this time, in the opposite direction of the - arrow -.

All Vehicles

- End "Guided Functions" 02 - ATF Level Check with 12-Cylinder Engine (Repair Group 37) on the vehicle diagnosis tester according to the instructions.

- Clean the front exhaust pipes and transmission and completely remove ATF residue.

- Install the noise insulation..

The ATF level test is now completed.

Topping Off the ATF

• If no ATF leaks out of the ATF check and fill hole - arrow A - before the ATF reaches 40 °C (104 °F):

• The ATF inspection plug must be installed again before the ATF reaches 45°C (113 °F) (50°C (122 °F) for countries with hot climates). Let the transmission cool down and check again.

- Place rags near the ATF-check and fill opening and on top of both right front exhaust pipes that have cooled off.

- Install the (VAS 6262/5) on top of both front exhaust gas pipes in the ATF-check and fill opening - arrow -.

- Fill the ATF using the adapter until the ATF starts to leak out of the check and fill hole.

• Too little or too much ATF will impair the transmission.

- Use (T10455) and a torque wrench to tighten the new sealing plug - A - for ATF check and fill hole.

Additional work steps are listed below for vehicles where the right cylinder bank has been shut off manually.

- Connect the hose - 1 - for the crankcase ventilation and have it secured.

All Vehicles

- End "Guided Functions" 02 - ATF Level Check with 12-Cylinder Engine (Repair Group 37) on the vehicle diagnostic tester according to the instructions.

- Clean the front exhaust pipes and transmission and completely remove ATF residue.

- Install the noise insulation..

The ATF level test is now completed.