Volkswagen Golf Service & Repair Manual: Removing and installing control unit 1 for information electronics -J794-

Volkswagen Golf Service & Repair Manual / Communication / Infotainment / Infotainment system / Removing and installing control unit 1 for information electronics -J794-

Special tools and workshop equipment required

Radio release tool -T10057-

Removing and installing control unit 1 for information electronics -J794-

Protective cap for wiring harness connector -VAS 6223/9-

If the control unit is replaced, select the Replace function of the respective control unit in Guided fault finding → Vehicle diagnostic tester.

Removing

–	Switch off ignition and all electrical consumers, and remove ignition key.

–	Open glove compartment.

–	Eject any data medium that is still in control unit 1 for information electronics -J794-.

Removing and installing control unit 1 for information electronics -J794-

–	Insert 2 radio release tools -T10057- into slots in control unit 1 for information electronics -J794--1- until they engage.

The pointed projections on the grip rings point outwards.

–	Grasp hold of grips on radio release tool -T10057- and pull control unit 1 for information electronics -J794--1- out of dash panel.

–	Release and unplug connectors at control unit 1 for information electronics -J794--1-.

Version with digital sound package control unit -J525-

Removing and installing control unit 1 for information electronics -J794-

–	Push protective cap for cable connector -VAS 6223/9--1- onto connector of MOST bus -2-.

All versions

–	Press locking lugs on control unit 1 for information electronics -J794- and pull out radio release tool -T10057-.

Installing

Install in the reverse order of removal. When doing this, note the following:

–	Slide control unit 1 for information electronics -J794- into glove box until it engages.

Removing and installing control unit 1 for information electronics -J794-

Removing and installing infotainment system display

Special tools and workshop equipment required Removal wedge -3409- ...

Sound system

...

Other materials:

Extraction and charging valve, high-pressure side
Note Torque wrench -V.A.G 1783- with 1/4" ratchet adapter -VAS 6234- Appropriate insert -T10364- to remove valve core → Fig. 1 - Base with external or internal thread ...

Removing and installing immobiliser reader coil -D2-, vehicles with keyless access locking and starting system
Removing – Move steering wheel to rearmost and lowest position. Use the entire range of adjustment of the steering column for this purpose. – Remove lower steering column trim →&nb ...

Refrigerant pressure and temperature sender -G395
WARNING Danger of freezing injuries. If refrigerant circuit has not been evacuated, refrigerant will escape. The refrigerant must be extracted before removi ...