Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 455
– Hold the Mechatronic facing up. The sensor arm must not
touch the sensor wheel.
– Make sure the Mechatronic unit is installed correctly.
– Tighten the new bolts -1 through 10- hand-tight.
– Tighten the bolts -1 to 10- in the tightening sequence provided.
Tightening specification. Refer to :
⇒ Fig. ““Tightening Specification and Sequence for DSG
Transmission Mechatronic -J743- ”“ , page 30
– Replace both -O-rings- if the “old” Mechatronic is being instal‐
led again.
– Coat the O-rings with DSG
®
transmission fluid.
A »new« Mechatronic already has »new« O-rings.
– Replace the transmission cover gasket.
– Make sure the seal fits correctly.
– Place the transmission fluid pan -A- over the Mechatronic. Be
careful not to pinch any wires when doing this.
– Install the new bolts -arrows- and tighten in a diagonal se‐
quence in stages.
– Attach the cable bracket to the transmission cover -arrows- (2
M6 nuts).
– Mount the new transmission fluid pump cover -A-. Tighten the
new bolts -arrows- and tighten in a diagonal sequence in
stages.
– Install the lower left front wheel housing liner. Refer to ⇒ Body
Exterior; Rep. Gr. 66 ; Wheel Housing Liner; Overview - Front
Wheel Housing Liner .
Connect the connector -A- on the DSG Transmission Mechatronic
- J743- as follows:
– The arrow -D- on the DSG Transmission Mechatronic - J743-
-B- must line up with the connector -A- as well as with the tab
-C-.
– Connect the connector -A- carefully all the way and then turn
the lock “clockwise” in direction of -arrow-.
– Install the new bolts -1- for the pendulum support on the trans‐
mission. Refer to ⇒ Rep. Gr. 10 ; Subframe Mount; Overview
- Subframe Mount .
– Install the air filter housing if it was removed earlier. Refer to
⇒ Engine Mechanical, Fuel Injection and Ignition; Rep. Gr.
24 ; Air Filter; Air Filter Housing, Removing and Installing .
– Do not start the engine.
– Move the Used Oil Collection and Extraction Unit -
SNM372500- under the transmission near the transmission
fluid drain and check plug.
– Remove the transmission fluid drain- and check plug -arrow-.
– Install the Oil Filler - VAS6262A- into the check hole hand-
tight.
– Shake before opening.
– Attach the Oil Filler - VAS6262A- to the oil bottle. Be sure to
read the instructions. Refer to
.
– Fill 3 liters (3.1 quarts) of transmission fluid.
– To change containers, close the shut-off valve or hold the Oil
Filler - VAS6262A- higher than the transmission.
Start the engine and check the fluid level. Refer to
⇒ “9.1 Transmission Fluid Level, Checking”, page 113
. The Oil
Filler - VAS6262A- remains installed.
– Install the noise insulation. Refer to ⇒ Body Exterior; Rep. Gr.
66 ; Noise Insulation; Overview - Noise Insulation .
– Connect the Vehicle Diagnostic Tester .
– Perform a basic setting on the DSG Transmission Mechatronic
- J743- .
Note
After installing a “new” Mechatronic, readapt the immobilizer.
Tightening Specifications
♦ Refer to
⇒ “1.1 Overview - Mechatronic”, page 28
.
♦ Cable bracket on the transmission cover. Refer to
⇒ “3.3 Transmission Tightening Specifications”, page 96
.
1.2.2
DSG Transmission Mechatronic -
J743- , Removing and Installing, Trans‐
mission Removed
Special tools and workshop equipment required
♦ Torque Wrench 5-50Nm - VAG1331-
♦ Used Oil Collection and Extraction Unit - SMN372500-
Caution
This procedure contains mandatory replaceable parts. Refer
to component overview prior to starting procedure.
Mandatory Replacement Parts
♦ Bolts - DSG
®
Transmission Mechatronic - J743
♦ Bolts - Pendulum Support Bolts to Transmission
♦ Bolts - Transmission Fluid Pan
♦ Bolts - Transmission Fluid Pump Cover
♦ O-rings - DSG
®
Transmission Mechatronic - J743
♦ Seal - Transmission Fluid Drain and Check Plug
♦ Seal - Transmission Fluid Pan
Note
♦
Follow the guidelines for clean working conditions. Refer to
⇒ “3.2 Clean Working Conditions”, page 5
.
♦
Pay attention to the general repair information. Refer to
⇒ “3.3 General Repair Information”, page 6
Always make sure that no dirt enters an “open” transmission. Dirt
entering can cause a transmission malfunction especially with
“open” Direct Shift Gearbox (DSG
®
) Mechatronic and/or oil pump.
Removing
– Place the Used Oil Collection and Extraction Unit -
SMN372500- or Drip Tray under the transmission.
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