Removing dual clutch: VW Jetta VI 2.0 (CDLA, CDLC, CDLK, CJXB, …)

🧭 Before you start

Fits: VW Jetta VI (16, 2010–2018)

• Opens: power steering fluid
• Special tools named: T10356/5
• Renewed: retaining ring
• Also covered elsewhere: Electronic Parts Catalogue (ETKA)

Don't miss

• Breather (2) and breather cap (1) form one replacement part and are fitted together onto breather connection (3).
• The dual clutch is pulled off upwards. The mechatronic unit remains on the gearbox.
• If parts of the dual clutch are renewed, the position of engagement bearings "“K 1”" and "“K 2”" must be set later. It is therefore advisable to determine dimension "“B”" for the measurements now .
• Bolts (A), secure with nut as required.
• Risk of damage to dual clutch and other components!Push down dual clutch using only very light force. — To press down, turn spindle against thrust piece T10376.

🔧 Engine codes this applies to

📋 Procedure

1. ⚠ 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 hydraulic fluid, sealing plugs and disposable syringe from the repair kit5C0 998 152, refer to Electronic Parts Catalogue. If possible, replenish the hydraulic fluid after the gearbox has been installed. After the hydraulic fluid has been replenished, dispose of the remaining hydraulic fluid, the sealing plugs and the syringe.If oil escapes from the gear oil section, it can only be rectified by changing the gear 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 destroyed during removal and must be renewed. — Pull off both breather caps (arrow A) and (arrow B). [Note: As an alternative to the engine bung setVAS 6122, the protective cap02M 409 120 can be used to seal the gearbox. Alternatively, the mechatronic unit can be sealed off properly with the protective cap0AM 325 120 A. For ordering, refer to Electronic Parts Catalogue.]
2. Seal gearbox breather and breather of mechatronic unit for dual clutch gearbox J743 with clean sealing plugs so that no oil can escape.
3. Order a new breather cap (arrow) for mechatronic unit for dual clutch gearbox J743, because it must be renewed after the gearbox has been installed Electronic Parts Catalogue. [Note: Breather (2) and breather cap (1) form one replacement part and are fitted together onto breather connection (3).]
4. Turn gearbox on engine and gearbox jack upwards together with dual clutch. [Note: The dual clutch is pulled off upwards. The mechatronic unit remains on the gearbox.]
5. Remove retaining ring (arrow) for hub.

6. Remove hub with hook3438 and a screwdriver. [Note: If parts of the dual clutch are renewed, the position of engagement bearings "“K 1”" and "“K 2”" must be set later. It is therefore advisable to determine dimension "“B”" for the measurements now .]
7. Remove retaining ring (arrow) for dual clutch. [Note: If the retaining ring cannot be removed it is because the dual clutch has »clamped« the retaining ring at the bottom.In this case, depress the dual clutch slightly as described in the following. The retaining ring is thus relieved. Never strike the dual clutch or shaft with a hammer.Always renew retaining ring.]
8. Position support bracket T10323 parallel to gearbox flange as shown in illustration.
9. If necessary, balance out gaps using T10356/5, for example.
10. Screw in bolts (A) hand-tight. [Note: Bolts (A), secure with nut as required.]
11. ⚠ Risk of damage to dual clutch and other components!Push down dual clutch using only very light force. — To press down, turn spindle against thrust piece T10376.
12. Remove retaining ring (arrow) for dual clutch.
13. ⚠ It is not permissible to reuse the retaining ring. — Insert puller T10373 into dual clutch, and bore out clutch.
14. Remove dual clutch together with puller T10373.

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