Volkswagen Jetta Hybrid (2013 year). Manual — part 28
.
Caution
Risk of damaging clutches.
♦ If the engaging levers strike the clutch actuators of the
mechatronic unit hard, these will be placed under excess
pressure and the self-adjusting device of the clutch will
become active. Self-adjustment cannot be reversed.
• Both clutch actuators must be engaged correctly in retainers
of clutch engaging levers.
• Do not damage rubber grommets of clutch actuators when
doing this.
• Rubber grommets must seal properly against mechatronic
unit.
– Carefully and slowly turn assembly lever -T10407- in clock‐
wise direction and remove it.
• The plungers must slide slowly into the mountings.
– Pull out plungers by hand until they are properly seated in
mountings.
– Install gearbox input speed sender 3 -G641- .
– Pay attention to sender. Clip must not be damaged.
• Sender lug must be fully and firmly in contact with gearbox
housing. If sender is »loose« because the clip is broken, renew
mechatronic unit.
– Connect mechatronic unit connector.
Jetta Hybrid 2013 ➤
7. Mechatronic unit
105
and install wiring harness to retainer at front of gearbox.
Note
♦
Check the O-ring -arrow- on the hydraulic line for damage and
renew it if necessary. Refer to ⇒ Electronic parts catalogue
“ETKA” .
♦
The O-ring must be green. It is suitable for use with hydraulic
fluids. Do not use any other O-ring.
♦
Only remove the sealing plugs on hydraulic line, engine and
valve block/mechatronic unit immediately before installation.
– Insert hydraulic line -3- into engine and valve block/mecha‐
tronic unit.
– Then, press retaining clip -2- into valve block/mechatronic unit.
– Check proper seating of hydraulic line -3- by pulling on it.
– Screw union nut -1- for hydraulic line on engine and tighten it
to specified torque
⇒ Item 6 (page 92)
.
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106
• If a large quantity of hydraulic fluid (more than 20 ml) has es‐
caped, hydraulic fluid must be replenished through breather
connection -3- at this point.
• For allocation of hydraulic fluid and filling equipment refer to
⇒ Electronic parts catalogue “ETKA” .
– Fit breather cap -1- (is one replacement part together with
breather -2-) onto breather connection -3-.
Note
♦
If the mechatronic unit is removed, fit sealing plugs onto the
old mechatronic unit so that no oil can escape when it is sent
for reconditioning.
♦
The oil in the old mechatronic unit must not be drained off.
Further installation is carried out in reverse order of removal. Ob‐
serve the following when installing:
– Fill gearbox oil
⇒ page 86
.
– Check selector lever cable adjustment and adjust it if neces‐
sary
⇒ page 60
.
Install power and control electronics for electric drive -JX1- ⇒
electronics for electric drive -JX1- .
– Re-energise high-voltage system and carry out documenta‐
tion ⇒ Electrical system, hybrid vehicles; Rep. gr. 93 ; Re-
energising high-voltage system .
– Move lock carrier back from service position ⇒ General body
from service position .
Removing and installing radiator cowling .
Draining and filling coolant .
gr. 66 ; Noise insulation .
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7. Mechatronic unit
107
⇒ Vehicle diagnostic tester in
Guided functions
mode.
Note
The disengagement clutch in the electric drive motor -V141- sep‐
arates the combustion engine from the electric drive motor -
V141- .
–
Initiate basic adjustment
⇒ page 13
.
Specified torques
♦
⇒ Fig. ““ Mechatronic unit for dual clutch gearbox -J743- -
specified torque and tightening sequence”“ , page 94
7.3
Setting mechatronic unit to removal position by hand
• Only if you cannot set the mechatronic unit to removal position
with the vehicle diagnostic tester , you must set the unit by
hand to this position.
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