Service

Workshop Manual
ID.4 2021 ➤
Communication
Edition 10.2021

Service Department. Technical Information

 Service
List of Workshop Manual Repair Groups

Repair Group
00 - Technical data
91 - Communication

Technical information should always be available to the foremen and mechanics, because their
careful and constant adherence to the instructions is essential to ensure vehicle road-worthiness
and safety. In addition, the normal basic safety precautions for working on motor vehicles must, as
a matter of course, be observed.
 ID.4 2021 ➤
Communication - Edition 10.2021

Contents

00 - Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 Electrical components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Access to diagnoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

91 - Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1 Safety information and repair notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Fitting locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Overview of fitting locations – components/control units in middle section of vehicle . . . . 3
2.2 Overview of fitting locations – components/control units in rear section of vehicle . . . . . . 5
3 Components/control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Removing and installing control unit for front display and information control panel [J685] . . 7
3.2 Control unit 1 for information electronics [J794] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Removing and installing front treble loudspeakers [R20]/[R22] . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Removing and installing front bass loudspeakers [R21/R23] . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5 Removing and installing rear broadband loudspeakers [R385/386] . . . . . . . . . . . . . . . . . . 11
3.6 Removing and installing centre loudspeaker [R208] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.7 Removing and installing subwoofer [R211] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.8 Removing and installing digital sound package control unit [J525] . . . . . . . . . . . . . . . . . . 12
3.9 Removing and installing aerial module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.10 Removing and installing frequency modulation (FM) frequency filters [R178/R179] . . . . . . 14
3.11 Removing and installing roof aerial [RX5] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.12 Removing and installing LTE aerial [R306] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.13 Removing and installing internet access control unit [J666] . . . . . . . . . . . . . . . . . . . . . . . . 16
3.14 Removing and installing data transmission aerial [R180] . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.15 Removing and installing transmission and reception stabilisation control unit [R308] . . . . 17
3.16 Removing and installing telephone bracket [R126] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.17 Removing and installing telephone microphone [R38] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.18 Removing and installing multifunction buttons [E440]/[E441] . . . . . . . . . . . . . . . . . . . . . . 18
3.19 Removing and installing control unit for steering wheel contact detection [J1158] . . . . . . 21
3.20 Removing and installing USB connection 1 [U41] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.21 Removing and installing USB charging socket 1 [U37] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.22 Removing and installing emergency call module control unit and communication unit
[J949], rear bench seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.23 Removing and installing loudspeaker for emergency call module [R335] . . . . . . . . . . . . . . 25
3.24 Removing and installing emergency battery, telematics [A16] . . . . . . . . . . . . . . . . . . . . . . 25
4 Multifunction steering wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1 Assembly overview – multifunction steering wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Contents i
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ii Contents
 ID.4 2021 ➤
Communication - Edition 10.2021

00 – Technical data
1 Electrical components
10004K2TWC43.005.1 - 10.2021

1.1 Access to diagnoses

Renewing control units/commissioning communication systems
Renewing/commissioning con‐ Diagnosis path
trol unit
Digital sound package control ♦ ⇒ Vehicle diagnostic tester
unit -J525-
♦ Carry out test plan for “dig‐
ital sound package control
unit [J525]”.

Emergency call module control ♦ ⇒ Vehicle diagnostic tester

unit and communication unit -
J949- ♦ Carry out test plan for
“emergency call module
control unit and communi‐
cation unit [J949]”.

Emergency battery, telematics ♦ ⇒ Vehicle diagnostic tester

-A16-
♦ Carry out test plan for
“emergency battery, tele‐
matics [A16]”.

Multifunction buttons on left ♦ ⇒ Vehicle diagnostic tester

in steering wheel -E440- / mul‐
tifunction buttons on right in ♦ Carry out commissioning
steering wheel -E441- procedure 0631 for “mul‐
tifunction buttons [E440]/
[E441]”.

1. Electrical components 1
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91 – Communication
1 Safety information and repair notes

2 Rep. gr.91 - Communication

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2 Fitting locations

2.1 Overview of fitting locations – components/control units in middle section

of vehicle
The overview shows a left-hand drive vehicle as an example.

2. Fitting locations 3
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1 - Front right treble loud‐

speaker -R22-
❑ ⇒ Rep. gr. 91; Re‐
moving and installing
front treble loudspeak‐
ers [R20]/[R22]
2 - Data transmission aerial
-R180-
❑ Depending on equip‐
ment/version
❑ ⇒ Rep. gr. 91; Remov‐
ing and installing da‐
ta transmission aerial
[R180]
3 - Front interior light -WX1-
❑ With telephone micro‐
phone -R38-
❑ With emergency assis‐
tance call button -E276-
❑ Can only be renewed
together with front inte‐
rior light -WX1-
❑ ⇒ Electrical system;
Rep. gr. 96; Controls;
Removing and instal‐
ling front interior light
[WX1]
4 - Bass loudspeaker, front
right -R23-
❑ ⇒ Rep. gr. 91; Re‐
moving and installing
front bass loudspeak‐
ers [R21/R23]
5 - Rear right broadband loud‐ Volkswagen Technical Site: https://vwts.ru
speaker -R386-
❑ ⇒ Rep. gr. 91; Removing and installing rear broadband loudspeakers [R385/386]
6 - Emergency call module control unit and communication unit -J949-
❑ With emergency battery, telematics -A16-
❑ ⇒ Rep. gr. 91; Removing and installing emergency battery, telematics [A16]
❑ ⇒ Rep. gr. 91; Removing and installing emergency call module control unit and communication unit
[J949], rear bench seat
7 - Rear left broadband loudspeaker -R385-
❑ ⇒ Rep. gr. 91; Removing and installing rear broadband loudspeakers [R385/386]
8 - USB charging socket 1 -U37-
❑ ⇒ Rep. gr. 91; Removing and installing USB charging socket 1 [U37]
9 - USB connection 1 -U41-
❑ ⇒ Rep. gr. 91; Removing and installing USB connection 1 [U41]
10 - Telephone bracket -R126-
❑ ⇒ Rep. gr. 91; Removing and installing telephone bracket [R126]
11 - Bass loudspeaker, front left -R21-
❑ ⇒ Rep. gr. 91; Removing and installing front bass loudspeakers [R21/R23]
12 - Multifunction steering wheel

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❑ With multifunction buttons on left in steering wheel -E440- With multifunction steering wheel control
unit -J453-
❑ With multifunction buttons on right in steering wheel -E441-
❑ With control unit for steering wheel contact detection -J1158-
❑ Depending on equipment/version
❑ ⇒ Rep. gr. 91; Assembly overview – multifunction steering wheel
❑ ⇒ Rep. gr. 91; Removing and installing multifunction buttons [E440]/[E441]
❑ ⇒ Rep. gr. 91; Removing and installing control unit for steering wheel contact detection [J1158]
13 - Front left treble loudspeaker -R20-
❑ ⇒ Rep. gr. 91; Removing and installing front treble loudspeakers [R20]/[R22]
14 - Centre loudspeaker
❑ With centre loudspeaker -R208-
❑ With loudspeaker for emergency call module -R335-
❑ ⇒ Rep. gr. 91; Removing and installing centre loudspeaker [R208]
❑ ⇒ Rep. gr. 91; Removing and installing loudspeaker for emergency call module [R335]
15 - Information electronics control unit 1 -J794-
❑ With bracket ⇒ a3.2.2 nd installing bracket for control unit 1 for information electronics [J794]”, page
8
❑ ⇒ Rep. gr. 91; Control unit 1 for information electronics [J794]
16 - Display unit for front information display and operating unit control unit -J685-
❑ ⇒ Rep. gr. 91; Removing and installing control unit for front display and information control panel
[J685]

2.2 Overview of fitting locations – components/control units in rear section of

vehicle
The overview shows a left-hand drive vehicle as an example.

2. Fitting locations 5
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1 - Roof aerial -RX5-

❑ With external vehicle
communication aerial -
R387-
❑ With GPS aerial -R50-
❑ With LTE aerial 1 -
R297-
❑ Depending on equip‐
ment/version
❑ ⇒ Rep. gr. 91; Remov‐
ing and installing roof
aerial [RX5]
2 - Internet access control unit
-J666-
❑ ⇒ Rep. gr. 91; Remov‐
ing and installing inter‐
net access control unit
[J666]
3 - Radio aerial 2 -R93-
❑ ⇒ Rep. gr. 91; Remov‐
ing and installing aerial
module
4 - Frequency modulation
(FM) frequency filter in nega‐
tive wire -R178-
❑ ⇒ Rep. gr. 91; Re‐
moving and installing
frequency modulation
(FM) frequency filters
[R178/R179]
5 - Transmission and recep‐
tion stabilisation control unit -
R308-
❑ ⇒ Rep. gr. 91; Remov‐
ing and installing trans‐
mission and reception stabilisation control unit [R308]
6 - LTE aerial 2 -R306-
❑ ⇒ Rep. gr. 91; Removing and installing LTE aerial [R306]
7 - Subwoofer -R211-
❑ Depending on equipment/version
❑ ⇒ Rep. gr. 91; Removing and installing subwoofer [R211]
8 - Digital sound package control unit -J525-
❑ Depending on equipment/version
❑ ⇒ Rep. gr. 91; Removing and installing digital sound package control unit [J525]
9 - Frequency modulation (FM) frequency filter in positive wire -R179-
❑ ⇒ Rep. gr. 91; Removing and installing frequency modulation (FM) frequency filters [R178/R179]
10 - Aerial -R11-/digital radio aerial -R183-
❑ Depending on equipment/version
❑ ⇒ Rep. gr. 91; Removing and installing aerial module

6 Rep. gr.91 - Communication

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3 Components/control units

3.1 Removing and installing control unit for

front display and information control
panel [J685]
Removing
The display unit for front information display and operating unit
control unit -J685- will henceforth be referred to as “display and
operating unit control unit”.
– Remove information electronics cover ⇒ General body re‐
pairs, interior; Rep. gr. 68; Compartments/covers; Removing
and installing information electronics cover.
– Unscrew bolts -1-, and pull out display and operating unit
control unit.

– Disconnect electrical connectors.

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

NOTICE
Risk of damage to the display due to excessive pressure.
– When inserting the unit, do not apply pressure to the dis‐
play.

– Handle the display and operating unit control unit with care.
Tightening torques
Component Specified torque
Bolts on dash panel 4 Nm

3.2 Control unit 1 for information electron‐

ics [J794]

3.2.1 Removing and installing control unit 1

for information electronics [J794]
Removing
The control unit 1 for information electronics -J794- will hence‐
forth be referred to as “information electronics control unit”.

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Removal and installation are described for a left-hand drive

vehicle as an example.
If the control unit for information electronics is renewed, perform
the test plan for the renewal of the control unit:
– Carry out function “Renew control unit for information elec‐
tronics” 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.
– Release locking devices -arrows-, and pull out information
electronics control unit -1- while at the same time swivelling
it downwards.

– Disconnect electrical connectors.

Installing
Install in the reverse order of removal, observing the following:
Important
• The information electronics control unit must engage audi‐
bly.
If the control unit for information electronics has been renewed,
conclude the test plan for the renewal of the control unit:
– Conclude function “Renew control unit for information elec‐
tronics” using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00;
Access to diagnoses.

3.2.2 Removing and installing bracket for

control unit 1 for information electron‐
ics [J794]
Removing
The bracket for the control unit 1 for information electronics
-J794- will henceforth be referred to as “bracket”.
Removal and installation are described for a left-hand drive
vehicle as an example.
– Remove footwell vent on front passenger side ⇒ Heating, air
conditioning; Rep. gr. 87; Air duct; Removing and installing
footwell vent on front passenger side.
– 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.

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– Unscrew bolts -2- and -3-.

– Detach strut -1-.

– Remove control unit 1 for information electronics -J794-
⇒ Rep. gr. 91; Control unit 1 for information electronics
[J794].
– Remove heater and air conditioning system control unit -
J979- ⇒ Heating, air conditioning system; Rep. gr. 87; Other
control components; Removing and installing heater and air
conditioning system control unit [J979].
– Remove data bus diagnostic interface -J533- ⇒ Electrical
system; Rep. gr. 97; Control units; Removing and installing
data bus diagnostic interface [J533].
– Loosen fan for control unit -V274-, and lay it aside with elec‐
trical wiring still connected ⇒ Electrical system; Rep. gr. 97;
Control units; Removing and installing fan for control unit
[V274].
– Pull out bracket -1- in direction of -arrow-, and detach it.

Installing
Install in the reverse order of removal, observing the following:
Tightening torques
♦ ⇒ General body repairs, interior; Rep. gr. 70; Central tube for
dash panel; Assembly overview – central tube for dash panel

3. Components/control units 9
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3.3 Removing and installing front treble

loudspeakers [R20]/[R22]
The front left treble loudspeaker -R20- and front right treble
loudspeaker -R22- are renewed together with the upper A-pillar
trim.

– Install upper A-pillar trims ⇒ General body repairs, interior;

Rep. gr. 70; Trims, interior; Removing and installing A-pillar
trim.

3.4 Removing and installing front bass

loudspeakers [R21/R23]
The front left bass loudspeaker -R21- and front right bass loud‐
speaker -R23- will henceforth be referred to as “loudspeaker”.
Removal and installation are described for the left vehicle side
as an example.
Tools and auxiliary equipment required:
♦ Electric drill, commercially available
♦ Suitable drill bit, approx. “4 mm in dia.”, commercially availa‐
ble
♦ Pop rivet pliers, commercially available
Removing
– Remove front door trim ⇒ General body repairs interior; Rep.
gr. 70; Front door trims; Removing and installing front door
trim.
– Disconnect electrical connector -2-.

CAUTION
Risk of eye injuries due to metal swarf.
Eye irritation and injury possible.
– Put on safety goggles.

NOTICE
Corrosion damage due to swarf and damaged paintwork
– Completely remove swarf from the door, and immediately
rectify any paintwork damage caused.

– Drill out pop rivets -3-, and remove loudspeaker -1-.

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Installing
Install in reverse order of removal, observing the following:
Important
• Only secure the loudspeaker using the specified pop rivets
⇒ Electronic parts catalogue (ETKA).

3.5 Removing and installing rear broad‐

band loudspeakers [R385/386]
The rear left broadband loudspeaker -R385- and rear right
broadband loudspeaker -R386- will henceforth be referred to
as “loudspeaker”.
Removal and installation are described for the left vehicle side
as an example.
Removing
Tools and auxiliary equipment required:
♦ Electric drill, commercially available
♦ Suitable drill bit, approx. 4 mm in dia., commercially availa‐
ble
♦ Pop rivet pliers, commercially available
– Remove rear door trim ⇒ General body repairs, interior; Rep.
gr. 70; Rear door trims; Removing and installing rear door
trim.
– Disconnect electrical connector -2-.

CAUTION
Risk of eye injuries due to metal swarf.
Eye irritation and injury possible.
– Put on safety goggles.

NOTICE
Corrosion damage due to swarf and damaged paintwork
– Completely remove swarf from the door, and immediately
rectify any paintwork damage caused.

– Drill out pop rivets -3-, and remove loudspeaker -1-.

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

3. Components/control units 11
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• The loudspeaker may only be secured by means of specified

pop rivets ⇒ Electronic parts catalogue (ETKA).

3.6 Removing and installing centre loud‐

speaker [R208]
The centre loudspeaker -R208- and loudspeaker for emergency
call module -R335- are comprised in one component.
– ⇒ Rep. gr. 91; Removing and installing loudspeaker for
emergency call module [R335].

3.7 Removing and installing subwoofer

[R211]
The subwoofer -R211- will henceforth be referred to as “sub‐
woofer”.
Removing
– Remove luggage compartment floor.
– Disconnect electrical connector -3-.

– Unscrew bolts -2-.

– Lift out subwoofer -1-.
Installing
Install in the reverse order of removal, observing the following:
Component Specified torque
Bolts on subwoofer 8 Nm

3.8 Removing and installing digital sound

package control unit [J525]
Removing
The digital sound package control unit -J525- will henceforth be
referred to as “digital sound package control unit”.
If the digital sound package control unit is renewed, perform the
test plan for the renewal of the control unit:
– Carry out function “Renew digital sound package control
unit” using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access
to diagnoses.
Continued
– Remove left luggage compartment side trim ⇒ General body
repairs, interior; Rep. gr. 70; Luggage compartment trims;
Removing and installing luggage compartment side trim.

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– Disconnect electrical connector -4-.

– Unscrew bolts -2-.

– Unscrew nuts -3-.
– Detach digital sound package control unit -1-.
Installing
Install in the reverse order of removal, observing the following:
If the digital sound package control unit has been renewed,
conclude the test plan for the renewal of the control unit:
– Conclude function “Renew digital sound package control
unit” using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access
to diagnoses.
Continued
Tightening torques
Component Specified torque
Bolts on body 2.5 Nm
Nuts to body 9 Nm

3.9 Removing and installing aerial module

Removing
The radio aerial 2 -R93-, aerial -R11- and digital radio aerial
-R183- will henceforth be referred to as “aerial module”.
Removal and installation are described for the left vehicle side
as an example.
– Remove upper rear lid trim ⇒ General body repairs, interior;
Rep. gr. 70; Luggage compartment trims; Removing and
installing upper rear lid trim.
– Disconnect electrical connectors -arrows-.

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– Unscrew bolt -2-.

– Pull off aerial module -1- in direction of -arrow-.

Installing
Install in reverse order of removal, observing the following:
Tightening torques
Component Specified torque
Bolt to rear lid 2 Nm

3.10 Removing and installing frequency

modulation (FM) frequency filters
[R178/R179]
The frequency modulation (FM) frequency filter in negative wire
-R178- and frequency modulation (FM) frequency filter in pos‐
itive wire -R179- will henceforth be referred to as “frequency
filter”.
Removal and installation are described for the left vehicle side
as an example.
Removing
– Remove rear lid side trim ⇒ General body repairs, interior;
Rep. gr. 70; Luggage compartment trims; Assembly over‐
view – luggage compartment side trim.
– Disconnect electrical connectors -2-.

– Using commercially available plastic wedge, carefully lever

out frequency filter -1-, and remove it.
Installing
Install in reverse order of removal, observing the following:
Important

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• The frequency filter must engage audibly.

3.11 Removing and installing roof aerial

[RX5]
The roof aerial -RX5- will henceforth be referred to as “roof
aerial”.
Removing
– Move clear internet access control unit -J666-⇒ Rep. gr. 91;
Removing and installing internet access control unit [J666].
– Disconnect electrical connectors -3-.

– Loosen bolt -5-.

– Detach internet access control unit -J666- -1-, and put it
aside with electrical wiring -4- and -6- still connected.
– Release locking devices -2-.

– Remove roof aerial -1- in direction of -arrow-.

Installing
Install in the reverse order of removal, observing the following:
– Press on roof aerial until it can be heard to engage.

3.12 Removing and installing LTE aerial

[R306]
The LTE aerial 2 -R306- will henceforth be referred to as “LTE
aerial”.
Removing
– Remove bumper cover ⇒ General body repairs, exterior;
Rep. gr. 63; Rear bumper; Removing and installing bumper
cover.

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– Disconnect electrical connector -2-.

– Unscrew nut -arrow-, and detach LTE aerial -1-.

Installing
Install in the reverse order of removal, observing the following:
Tightening torques
Component Specified torque
Nut to carrier 6 Nm

3.13 Removing and installing internet ac‐

cess control unit [J666]
The internet access control unit -J666- will henceforth be refer‐
red to as “internet access control unit”.
Removing
– Detach moulded headliner, and place it onto head restraints
⇒ General body repairs, interior; Rep. gr. 70; Roof trims;
Removing and installing moulded headliner.
– Disconnect electrical connectors -3-, -4- and -6-.

– Loosen bolt -5-.

– Release locking device -2-, and detach internet access con‐
trol unit -1-.
Installing
Install in reverse order of removal, observing the following:
Tightening torques
Component Specified torque
Bolt on roof aerial 9 Nm

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3.14 Removing and installing data transmis‐

sion aerial [R180]
The data transmission aerial -R180- will henceforth be referred
to as “data transmission aerial”.
Removing
– Remove lower cover ⇒ General body repairs, interior; Rep.
gr. 68; Interior mirror; Removing and installing interior mirror.
– Release locking devices -3-, and detach data transmission
aerial -1- in direction of -arrow-.

– Disconnect electrical connector -2-.

Installing
Install in reverse order of removal.

3.15 Removing and installing transmission

and reception stabilisation control unit
[R308]
Removing
The transmission and reception stabilisation control unit -R308-
will henceforth be referred to as “transmission and reception
stabilisation control unit”.
– Remove right luggage compartment side trim ⇒ General
body repairs, interior; Rep. gr. 70; Luggage compartment
trims; Removing and installing luggage compartment side
trim.
– Unscrew bolts -2-, and detach transmission and reception
stabilisation control unit -1-.

– Disconnect electrical connectors -3-.

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Installing
Install in the reverse order of removal, observing the following:
Tightening torques
Component Specified torque
Bolts on body 2.5 Nm

3.16 Removing and installing telephone

bracket [R126]
The telephone bracket -R126- will henceforth be referred to as
“telephone bracket”.
Removing
– Remove lining mat from rear centre console storage com‐
partment.

NOTICE
Risk of damage to component surfaces when sharp-edged
levers are used
– Mask off component in visible area using commercially
available adhesive tape before using a levering tool.

– Release locking devices -2-, and remove telephone bracket

-1-.

– Disconnect electrical connector.

Installing
Install in reverse order of removal.

3.17 Removing and installing telephone mi‐

crophone [R38]
The telephone microphone -R38- is renewed together with the
interior light -WX1-.

– Remove front interior light/reading light ⇒ Electrical system;

Rep. gr. 96; Controls; Removing and installing front interior
light [WX1].

3.18 Removing and installing multifunction

buttons [E440]/[E441]
The multifunction buttons on left in steering wheel -E440- with
multifunction steering wheel control unit -J453- and multifunc‐
tion buttons on right in steering wheel -E441- will henceforth be
referred to as “multifunction buttons”.

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 ID.4 2021 ➤
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Removing
If the multifunction buttons control unit is renewed, perform the
test plan for the renewal of the control unit:
– Carry out function “Renew multifunction buttons” using ⇒ Ve‐
hicle diagnostic tester ⇒ Rep. gr. 00; Access to diagnoses.
Continued
– Remove airbag unit with airbag igniter on driver side [N95]
⇒ General body repairs, interior; Rep. gr. 69; Driver-side air‐
bag; Removing and installing airbag unit with airbag igniter
on driver side [N95].

NOTICE
Risk of damage to the steering wheel.
– Mask off the steering wheel at the relevant locations to
protect it from damage.

– Mask off steering wheel -1- with adhesive tape in areas indi‐
cated by -arrows-.

– Using commercially available plastic wedge -2-, unclip trim

panel -1- in lower area -arrows-.

– Using commercially available plastic wedge -2-, unclip trim

panel -1- successively in indicated areas (-arrows A- through
-arrows C-).

3. Components/control units 19
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– Detach trim -1- together with multifunction buttons -3-, -4-

and lower trim -5-.
Vehicles with control unit for steering wheel contact detection
-J1158-
– Disconnect electrical connector -1-.

All vehicles (continued)

– Unscrew bolts -1-.

– Move clear wiring harness -2-.

– Detach multifunction buttons -3- and -4-.
– Release lower trim panel -2- at fasteners -arrows A-, and
remove it.

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 ID.4 2021 ➤
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Installing
Install in the reverse order of removal, observing the following:
– Clip in trim panel from below.
If the multifunction buttons control unit has been renewed, con‐
clude the test plan for the renewal of the control unit:
– Conclude function “Renew multifunction buttons control unit”
using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access to
diagnoses.
Continued
Tightening torques
♦ ⇒ Rep. gr. 91; Assembly overview – multifunction steering
wheel

3.19 Removing and installing control unit

for steering wheel contact detection
[J1158]
The control unit for steering wheel contact detection -J1158- will
henceforth be referred to as “control unit”.
Removing
– Remove airbag unit with airbag igniter on driver side [N95]
⇒ General body repairs, interior; Rep. gr. 69; Driver side air‐
bag; Removing and installing airbag unit with airbag igniter
on driver side [N95].
– Remove lower trim panel ⇒ Rep. gr. 91; Removing and in‐
stalling multifunction buttons [E440]/[E441].
– Disconnect electrical connectors -1- and -3-.

– Pull out control unit -2- in direction of -arrow-.

3. Components/control units 21
 ID.4 2021 ➤
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Installing
Install in reverse order of removal.

3.20 Removing and installing USB connec‐

tion 1 [U41]
The USB connection 1 -U41- will henceforth be referred to as
“USB connection”.
The USB connection -1- is located in the middle storage com‐
partment of the centre console. For reasons of clarity, the front
seats are not shown in illustration.

Removing
– Remove centre console ⇒ General body repairs, interior;
Rep. gr. 68; Centre console; Removing and installing centre
console.
– Release locking devices -1- and -2-, and pull out USB con‐
nection.

Installing
Install in reverse order of removal, observing the following:
Important
• The USB connection must be heard to engage.

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 ID.4 2021 ➤
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3.21 Removing and installing USB charging

socket 1 [U37]
The USB charging socket 1 -U37- will henceforth be referred to
as “USB charging socket”.
The USB charging socket -2- is located in the rear centre con‐
sole vent. For reasons of clarity, the front seats are not shown
in illustration.

Removing
– Remove rear centre console vent ⇒ General body repairs,
interior; Rep. gr. 68; Centre console; Removing and instal‐
ling rear centre console vent.
– Release locking devices -2-, and pull out USB charging
socket -1-.

Installing
Install in reverse order of removal, observing the following:
Important
• The USB charging socket must be heard to engage.

3.22 Removing and installing emergency

call module control unit and communi‐
cation unit [J949], rear bench seat
Removing
The emergency call module control unit and communication unit
-J949- will henceforth be referred to as “emergency call module
control unit”.

3. Components/control units 23
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If the emergency call module is renewed, perform the test plan

for the renewal of the control unit:
– Carry out function “Renew emergency call module control
unit” using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access
to diagnoses.
Continued
– Remove bench seat ⇒ General body repairs, interior; Rep.
gr. 72; Rear seats; Removing and installing bench seat/indi‐
vidual seats.
– Detach floor covering up to front seats, and lift it up ⇒ Gen‐
eral body repairs, interior; Rep. gr. 70; Trims, interior; Re‐
moving and installing floor covering.
– Swivel out bracket -2- in direction of -arrow-.

– Disconnect electrical connectors -1-.

– Release locking devices -2-, and remove emergency call

module control unit -1-.

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

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 ID.4 2021 ➤
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Important
• Control unit for emergency call module must be heard to
engage in bracket.
If the emergency call module has been renewed, conclude the
test plan for the renewal of the control unit:
– Conclude function “Renew emergency call module control
unit” using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access
to diagnoses.

3.23 Removing and installing loudspeaker

for emergency call module [R335]
The loudspeaker for emergency call module -R335- will hence‐
forth be referred to as “loudspeaker for emergency call module”.
Removing
– Remove loudspeaker trim ⇒ General body repairs, interior;
Rep. gr. 70; Dash panel; Removing and installing loudspeak‐
er trim.
– Unscrew bolts -2-.

– Pull out loudspeaker for emergency call module -1-.

– Disconnect electrical connector.
Installing
Install in the reverse order of removal, observing the following:
Tightening torques
Component Specified torque
Bolts to dash panel 1.5 Nm

3.24 Removing and installing emergency

battery, telematics [A16]
The emergency battery, telematics -A16- will henceforth be re‐
ferred to as “emergency battery”.
The emergency call module control unit and communication unit
-J949- will henceforth be referred to as “emergency call module
control unit”.
Removing
If the display and operating unit control unit is renewed, perform
the test plan for the renewal of the control unit:
– Carry out function “Renew emergency battery, telematics”
using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access to
diagnoses.

3. Components/control units 25
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Continued
– Remove emergency call module control unit ⇒ Rep. gr. 91;
Removing and installing emergency call module control unit
and communication unit [J949], rear bench seat.
– Unscrew bolt -2-.

– Detach cover -1-.

– Disconnect electrical connector -2-.

– Remove emergency battery -1-.

Installing
Install in the reverse order of removal, observing the following:
If the display and operating unit control unit has been renewed,
conclude the test plan for the renewal of the control unit:
– Conclude function “Renew emergency battery, telematics”
using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access to
diagnoses.
Continued
Tightening torques
Component Specified torque
Bolt to emergency call module con‐ 1.5 Nm
trol unit

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 ID.4 2021 ➤
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4 Multifunction steering wheel

4.1 Assembly overview – multifunction steering wheel

1 - Steering wheel
❑ ⇒ Running gear, axles,
steering; Rep. gr. 48;
Steering wheel; Re‐
moving and installing
steering wheel
2 - Control unit for steer‐
ing wheel contact detection -
J1158-
❑ Depending on equip‐
ment/version
❑ ⇒ Rep. gr. 91; Remov‐
ing and installing con‐
trol unit for steering
wheel contact detection
[J1158]
3 - Trim panel
❑ ⇒ Rep. gr. 91; Remov‐
ing and installing multi‐
function buttons [E440]/
[E441]
4 - Trim panel at bottom
❑ Allocation: Electronic
parts catalogue (ETKA)
❑ ⇒ Rep. gr. 91; Remov‐
ing and installing multi‐
function buttons [E440]/
[E441]
5 - Multifunction buttons in
steering wheel
❑ With multifunction but‐
tons on left in steer‐
ing wheel -E440- With
multifunction steering
wheel control unit - Volkswagen Technical Site: https://vwts.ru
J453-
❑ With multifunction buttons on right in steering wheel -E441-
❑ ⇒ Rep. gr. 91; Removing and installing multifunction buttons [E440]/[E441]
6 - Bolt
❑ Qty. 6
❑ 1.2 Nm

4. Multifunction steering wheel 27