ATF, Draining And Filling

Special tools and workshop equipment required

Vehicle Diagnostic Tester
Used Oil Collection and Extraction Unit :SMN372500
Pressurized Gearbox Oil Filler Kit :VAS6617 with Pressurized Gearbox Oil Filler - Hand Pump :VAS6617/1 and Pressurized Gearbox Oil Filler - Adapter 2 :VAS6617/2
Pressurized Gearbox Oil Filler Kit - Adapter :VAS6617/12
Protective Eyewear
Acid-Resistant Safety Gloves

NOTE:

The 7-speed dual-clutch transmission is equipped with an ATF and MTF chamber.

Fig 1: Drain Plug Locations, ATF & MTF

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The ATF is located in the blue section of the transmission and is drained through the ATF drain plug -1- and filled through the ATF filler plug -2-.

The MTF is located in the green section of the transmission fluid and is drained by removing the MTF pump -4- and is filled through the MTF check plug -3-.

The bolt on the gear set -arrow- is not a drain plug.

Draining

NOTE:

Replace the plugs after removal.

The engine is off.
Move vehicle onto a four-pillar workshop hoist or over a work pit so that it is absolutely horizontal.
The selector level is in "P".
The parking brake button is pressed to activate the electro-mechanical parking brake.

-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- Remove the bolts -arrows- and nut -2-.

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-- Remove the crossbrace end panel -1-.

-- Place the :SMN372500 underneath.

-- Connect the Vehicle Diagnostic Tester with the vehicle and start the Diagnostic mode.

Select vehicle test
0002-Transmission electronics, Guided Functions
0002-ATF level, checking → 1 ATF draining

-- Follow the instructions in the display.

WARNING:

Danger of eye injury.

Wear protective eyewear.

-- Remove the plug -arrow- on the drain opening or open the plugs and let the ATF drain.

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CAUTION:

Risk of damaging the transmission.

Do not start the engine when there is no ATF in the transmission.

NOTE:

Follow the disposal requirements.

-- Tighten the ATF drain plug.

-- Clean the subframe crossbrace and remove any remaining ATF.

Filling

CAUTION:

Risk of damaging the transmission.

Only use the listed replacement ATF for the dual-clutch transmission 0CJ, 0CK, 0HL.
Using other fluids can cause malfunctions or transmission failure.
Note the allocation. Refer to the Parts Information.
The :VAS6617 must be clean and ATF must not be mixed with another fluid! Rinse the hand pump with ATF if necessary.

WARNING:

Danger of eye injury.

Wear protective eyewear.

-- Remove the plug -arrow- on the inspection and fill hole or open the plugs all the way.

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-- Guide the :VAS6617 with :VAS6617/1 and :VAS6617/12 in the hole.

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CAUTION:

Risk of damaging the transmission by mixing ATF and transmission fluid (MTF) through the same bleeder.

The ATF filling quantity of 3.5 liters must not be exceeded.

-- Fill with transmission with 3.5 liters of ATF using the hand pump.

-- Connect the Vehicle Diagnostic Tester with the vehicle and start the Diagnostic mode.

Select vehicle test
0002-Transmission electronics, Guided Functions
0002-ATF level, checking → 2 ATF filling

-- Start the selected program and follow the instructions in the display of the Vehicle Diagnostic Tester.

-- Tighten the plug -arrow- on the inspection and fill hole or close the plugs all the way.

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Tightening Specifications

Plug: Refer to -item ) Plugs.
Refer to OVERVIEW - SUBFRAME .
Refer to OVERVIEW - NOISE INSULATION .