Volkswagen Jetta Hybrid (2013 year). Manual - part 6

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• Mechatronic unit for dual clutch gearbox -J743- built into gear‐

box.

Caution

Risk of damage to gearbox.
Before repairs, the breather of the mechatronic unit for dual

clutch gearbox -J743- (-arrow A-) and the gearbox breather

(-arrow B-) must be sealed so that no oil can escape.

♦ If any oil escapes from the hydraulic fluid section of the

mechatronic unit for dual clutch gearbox -J743- , the oil

must not be filled back into the mechatronic unit! It is not

possible to check the fill level of the hydraulic fluid section

of the mechatronic unit for dual clutch gearbox -J743- .

♦ If hydraulic fluid has escaped, it must be replenished

through the breather connection of the mechatronic unit ,

if necessary. For allocation of the sealing plugs, hydraulic

fluid and filling equipment refer to ⇒  Electronic parts cata‐

logue “ETKA” . If possible, replenish the hydraulic fluid

after the gearbox has been installed. After the hydraulic

fluid has been replenished, dispose of the remaining hy‐

draulic fluid and the sealing plugs.

♦ If oil escapes from the gearbox oil section, it can only be

rectified by changing the gearbox oil. It is not possible to

check the fill level.

♦ If the level of oil/fluid is too high or too low in either of the

parts, the function of the gearbox will be impaired.

♦ The breather cap -arrow A- on the mechatronic unit is de‐

stroyed during removal and must be renewed.

– Pull off both breather caps -arrow A- and -arrow B-.

Note

As an alternative to the engine bung set -VAS 6122- the sealing

cap -02M 409 120- can be used to seal the gearbox. The mecha‐

tronic unit can be sealed using sealing cap -0AM 325 120 A- as

an alternative. Order sealing plugs via the ⇒  Electronic parts

catalogue “ETKA” .

– Seal gearbox breather and breather of mechatronic unit for

dual clutch gearbox -J743- with clean sealing plugs so that no

oil can escape.

Jetta Hybrid 2013 ➤

1. Clutch    

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gearbox has been installed ⇒  Electronic parts catalogue “ET‐

KA” .

Note

Breather -2- and breather cap -1- form one replacement part and

are fitted together onto breather connection -3-.

• Once the gearbox has been installed in the vehicle, the sealing

plugs must be removed and the breather caps reinstalled, or

new ones must be fitted if necessary.

– Turn gearbox on engine and gearbox support upwards to‐

gether with clutch..

Note

The clutch is pulled off upwards. The mechatronic unit remains

on the gearbox.

– Remove retaining ring -arrow- for hub.

– Remove hub with hook -3438- and a screwdriver.

Note

If parts of clutch are renewed, the position of engagement bear‐

ings “K 1” and “K 2” must be set later. It is therefore advisable to

determine dimension “B” for the measurements now

⇒ page 32

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♦

If the retaining ring cannot be removed it is because the clutch

has »clamped« the retaining ring at the bottom.

♦

In this case, push the clutch down slightly (see following de‐

scription) and release the load on the retaining ring. Never

strike the clutch or shaft with a hammer!

– Position support bracket -T10323- parallel to gearbox flange

as shown in illustration.

– If necessary, balance out gaps using -T10356/5- , for example.
– Screw in bolts -A- hand-tight.

Note

Bolts -A-, secure with nut as required.

Caution

Risk of damage to clutch and other components!

• Push down clutch using only very light force.

– To press down, turn spindle against thrust piece -T10376- .

– Remove retaining ring -arrow- for clutch.

Caution

It is not permissible to reuse the retaining ring.

Continuation once retaining ring has been removed:
– Insert puller -T10373- into clutch and bore out clutch.

Jetta Hybrid 2013 ➤

1. Clutch    

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Risk of damage to clutch and other components!

• The positions of the engagement bearings must be set

correctly.

Adjustment can only be carried out before the clutch is instal‐

led.
The position of the engagement bearings must be adjusted af‐

ter the following tasks:

♦ Clutch has been renewed.
♦ Engaging levers were renewed.
♦ Small ball pin for engaging lever “K 2” has been renewed.
♦ Engagement bearings were renewed.

If you have performed any of the above work, you must now

adjust  the  position  of  engagement  bearings  “K  1  and  K  2”

⇒ page 32

 .

Only when the adjustment is correct may assembly work be

continued.
If no new parts have been installed, insert removed shims.
Only one shim per engagement bearing may be installed.

• Clutch parts must be free of oil and grease.

Risk of damage from clutch adjustment device.

♦ The clutch is self-adjusting. Shocks can have an effect on

this adjusting device. Do not allow clutch to fall into gear‐

box during installation.

Requirement:
• Clutch engagement mechanism is installed 

⇒ page 29

 .

– Turn back spindle of puller -T10373- .

– Install clutch with puller -T10373- in gearbox, as shown in di‐

agram.

Jetta Hybrid 2013 ➤

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