Volkswagen ID.4: Control units

• Overview of fitting locations - control units
• Assembly overview - onboard supply control unit
• Removing and installing onboard supply control unit [J519]
• Removing and installing bracket for onboard supply control unit [J519]
• Removing and installing data bus diagnostic interface [J533]

Overview of fitting locations - control units

Overview of fitting locations - control units, left-hand drive vehicles

1. Data bus diagnostic interface - J533-

• ⇒ Rep. gr. 97 ; Removing and installing data bus diagnostic interface [J533]

2. Trailer detector control unit - J345-

• Depending on equipment/ version
• ⇒ General body repairs, exterior; Rep.

  gr. 66 ; Towing bracket; Removing and installing trailer detector control unit [J345]

3. Entry and start authorisation control unit - J518-

• ⇒ Rep. gr. 94 ; Removing and installing entry and start authorisation control unit [J518]

4. Onboard supply control unit - J519-
5. ⇒ Rep. gr. 97 ; Removing and installing onboard supply control unit [J519]

Overview of fitting locations - control units, right-hand drive vehicles

1. Entry and start authorisation control unit - J518-

• ⇒ Rep. gr. 94 ; Removing and installing entry and start authorisation control unit [J518]

2. Trailer detector control unit - J345-

• Depending on equipment/ version
• ⇒ General body repairs, exterior; Rep.

  gr. 66 ; Towing bracket; Removing and installing trailer detector control unit [J345]

3. Data bus diagnostic interface - J533-

• ⇒ Rep. gr. 97 ; Removing and installing data bus diagnostic interface [J533]

4. Onboard supply control unit - J519-

• ⇒ Rep. gr. 97 ; Removing and installing onboard supply control unit [J519]

Assembly overview - onboard supply control unit

Assembly overview - onboard supply control unit, left-hand drive vehicles

1. Entry and start authorisation control unit - J518-

• ⇒ Rep. gr. 94 ; Removing and installing entry and start authorisation control unit [J518]

2. Bracket for onboard supply control unit - J519-

• ⇒ Rep. gr. 97 ; Removing and installing bracket for onboard supply control unit [J519]

3. On-board supply control unit - J519-

• ⇒ Rep. gr. 97 ; Removing and installing onboard supply control unit [J519]

4. Guide for centre electrical connector
5. Bolt

• 4.5 Nm

Exploded view - onboard supply control unit, right-hand drive vehicles

1. Bracket for onboard supply control unit - J519-

• ⇒ Rep. gr. 97 ; Removing and installing bracket for onboard supply control unit J519

2. Onboard supply control unit - J519-

• ⇒ Rep. gr. 97 ; Removing and installing onboard supply control unit J519

3. Guide for centre electrical connector

Removing and installing onboard supply control unit [J519]

Removing and installing onboard supply control unit [J519], left-hand drive vehicles

The onboard supply control unit - J519- will henceforth be referred to as "onboard supply control unit".

Removing

If onboard supply control unit is renewed:

• Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Continued

Vehicles with footwell cover:

• Remove footwell cover on driver side ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing footwell cover on driver side .

All vehicles (continued)

• Disconnect electrical connectors -2-.
• Release retaining springs -3- in direction of -arrow A-.
• Swing onboard supply control unit -1- out of bracket -4-.

Installing

Install in the reverse order of removal, observing the following:

If onboard supply control unit has been renewed:

• Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Removing and installing onboard supply control unit [J519], right-hand drive vehicles

The onboard supply control unit - J519- will henceforth be referred to as "onboard supply control unit".

Removing

If onboard supply control unit is renewed:

• Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Continued

• Disconnect electrical connectors -2-.
• Release retaining springs -3- in direction of -arrow A-.
• Swing onboard supply control unit -1- out of bracket -4-.

Installing

Install in the reverse order of removal, observing the following:

If onboard supply control unit has been renewed:

• Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Removing and installing bracket for onboard supply control unit [J519]

Removing and installing bracket for onboard supply control unit [J519], lefthand drive vehicles

Removing

• Remove dash panel ⇒ General body repairs, interior; Rep.

  gr. 70 ; Dash panel; Removing and installing dash panel .

• Remove bracket for fuse holder C - SC- ⇒ Rep. gr. 97 ; Removing and installing fuse holder C [SC], left-hand drive vehicles .
• Remove onboard supply control unit - J519- ⇒ Rep. gr. 97 ; Removing and installing bracket for onboard supply control unit [J519] .
• Remove entry and start authorisation control unit - J518- ⇒ Rep. gr. 94 ; Removing and installing entry and start authorisation control unit [J518] .
• Remove cable tie from bracket -1-.
• Unscrew bolt -2-.

• Release locking devices -1-.
• Disengage bracket -2- in direction of -arrow A-.
• Remove bracket -2- in direction of -arrow B-.

Installing

Install in the reverse order of removal, observing the following:

Removing and installing bracket for onboard supply control unit [J519], righthand drive vehicles

Removing

The onboard supply control unit - J519- will henceforth be referred to as "onboard supply control unit".

• Remove dash panel trim on front passenger side ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing dash panel trim on front passenger side .
• Remove onboard supply control unit - J519- ⇒ Rep. gr. 97 ; Removing and installing bracket for onboard supply control unit [J519] .
• Unscrew bolts -2- and -3-.
• Remove strut -1-.

• Remove cable tie from bracket -2-.
• Release locking devices -1-.
• Disengage bracket -2- in direction of -arrow A-.
• Remove bracket -2- in direction of -arrow B-.

Installing

Install in the reverse order of removal, observing the following:

Tightening torques

Removing and installing data bus diagnostic interface [J533]

Data bus diagnostic interface - J533- is referred to hereafter as "diagnostic interface".

Removing

If diagnostic interface is renewed:

• Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Continued

• Remove glove compartment cover ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing glove compartment cover .

Only for right-hand drive vehicles

• Remove dash panel trim on front passenger side ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing dash panel trim on front passenger side

All vehicles (continued)

• Release locking devices -1-.
• Pull out diagnostic interface -3- until electrical connectors -2- are accessible.
• Disconnect electrical connectors -2-.
• Pull out diagnostic interface -3-.

Installing

• Install in the reverse order of removal, observing the following:

If diagnostic interface has been renewed:

• Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

Removing and installing fan for control unit [V274]

Fan for control unit - V274- will henceforth be referred to as "fan".

Removal and installation are described for a left-hand drive vehicle as an example.

Removing

Vehicles with footwell cover:

• Remove footwell cover on passenger side ⇒ General body repairs, interior; Rep. gr. 68 ; Compartments/covers; Removing and installing footwell cover on passenger side .

All vehicles (continued)

• Pull off fan -1- with rubber bushes -3- from bracket -2-.
• Disconnect electrical connector -4-.
• Remove fan for control unit -1-.

Installing

Install in reverse order of removal.