Volkswagen Golf Variant / Jetta. Manual - part 571

 

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Volkswagen Golf Variant / Jetta. Manual - part 571

 

 

move the cap -arrow- from the vent and seal the vent with a

suitable plug.

The Protective Cap - 0AM 325 120- is well suited for this.

Caution

On some transmissions, the breather cap on the Mechatronic

is destroyed during removal and must be replaced.
Checking the hydraulic fluid level for the Mechatronic is not

possible. The Mechatronic vent must be sealed oil-tight before

performing any assembly work.
Fluid that has leaked out of the Mechatronic hydraulic area may

not be refilled or checked. Replace the Mechatronic if fluid is

leaking.

3.3

DSG Transmission Mechatronic -

J743- , Removing with Transmission In‐

stalled

♦ Bring the DSG Transmission Mechatronic - J743- into the »re‐

moval position« by hand. Refer to

⇒ “3.4  DSG Transmission Mechatronic J743 , Moving into

Removal Position by Hand”, page 115

 .

Special tools and workshop equipment required
♦ Assembly Lever - Mechatronic - T10407-
♦ Used Oil Collection and Extraction Unit - SMN372500-
♦ Engine Bung Set - VAS6122- , or Cap - 0AM 325 120 A-
♦ Vehicle Diagnostic Tester
Brief Description
The must be enough available space in front of the transmission

in order to remove the Mechatronic. Depending on the vehicle, it

is necessary to remove components that do not have anything to

do directly with the transmission. The air filter housing for exam‐

ple, and if equipped, the charge air hoses or coolant hoses.
If there are any brackets on the Mechatronic cover, these must

also be removed.
The Mechatronic is brought into the removal position using the

Vehicle Diagnostic Tester . All gear positions are »driven into

neutral«.
In this position, insert the Assembly Lever - Mechatronic -

T10407- between the engaging lever and transmission housing.

Now it is possible to relieve the Mechatronic plunger and remove

it by hand from the engaging lever sockets.
The Mechatronic can be removed and installed. Make sure the

clutch plunger is in the correct position in the engaging lever

socket during installation.
The following description must therefore be followed step by step.

3. DSG Transmission Mechatronic J743     

105

The clutch is self-adjusting. Vibrations can affect the adjusting

tool. Also when the Mechatronic is removed, the »abrupt pull‐

ing away« of the Assembly Lever - Mechatronic - T10407-

under the engaging levers will have a negative effect on the

adjusting tool.

The must be enough available space in front of the transmis‐

sion in order to remove the Mechatronic. It is necessary on

some vehicles to remove components that do not have any‐

thing to do directly with the transmission. If equipped, remove

the charge air lines or coolant lines.

Any brackets on the Mechatronic cover are removed.

Do not dispose of the packaging and the closure cap for the

vent pipe of a new Mechatronic after unpacking it. They are

required for returning the removed Mechatronic.

The fluid in a »new« Mechatronic is already filled correctly. Do

not drain or add any fluid.

Removing
– Move the selector lever into »P«.
– Lift the vehicle, all four take-up points of lifting platform at the

same height.

– Remove the noise insulation. Refer to ⇒  Body Exterior; Rep.

Gr.  50 ; Noise Insulation .

– Connect the Vehicle Diagnostic Tester and then select “7-

Speed DSG® transmission” 

Move into -Neutral- gear

under 

Guided Functions

.

- Air Filter Housing .

System; Overview - Air Filter .

– Remove the battery and the battery tray. Refer to ⇒  Electrical

Equipment; Rep. Gr.  27 ; Battery; Battery, Removing and In‐

stalling .

106

27 ; Starter; Starter, Removing and Installing .

Caution

There is a risk of damaging the DSG Transmission Mecha‐

tronic - J743- with static electricity.

♦ Do not touch contacts in DSG Transmission Mechatronic

- J743- connector with hands.

– To discharge any static electricity, touch vehicle ground with

hand (without wearing a glove). Refer to 

⇒ page 12

 .

– Release the connector lock on the Mechatronic by pulling in

the direction of the -arrow- and remove the connector.

– Place the Used Oil Collection and Extraction Unit -

SMN372500- or Drip Tray under the transmission.

– Drain the transmission fluid then reattach the oil drain plug.

3. DSG Transmission Mechatronic J743     

107

that it is oil-tight using a clean plug taken from Engine Bung

Set - VAS6122- . Use the Protective Cap - 0AM 325 120 A- if

available.

Caution

On some transmissions, the breather cap on the Mechatronic

is destroyed during removal and must be replaced.
Checking the hydraulic fluid level for the Mechatronic is not

possible. The Mechatronic vent must be sealed oil-tight before

performing any assembly work.
Fluid that has leaked out of the Mechatronic hydraulic area may

not be refilled or checked. Replace the Mechatronic if fluid is

leaking.

– Remove all of the front brackets from the transmission.

– Carefully remove the Transmission Input Speed Sensor 3 -

G641- from the housing in the direction of the -arrow- using a

screwdriver.

A »Difficult« Procedure Occurs in the Following:
Now both dual clutch engaging levers must be »pushed away«

from the Mechatronic plungers. Otherwise the levers will jam the

Mechatronic at the plungers and then the Mechatronic cannot be

removed.
– Please also read this description once through all the way to

the end. This will help to do the following steps »correctly«.

Both levers must now be carefully pulled out from the plungers.
– Please look at the -maroon- engaging lever in this image.

108

 

 

 

 

 

 

 

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