Volkswagen ID.4: Relay carriers, fuse holders, electronics boxes
Volkswagen ID.4 (E21) 2021-2025 Service Manual / Electrical system /
Wiring / Relay carriers, fuse holders, electronics boxes
Overview of fitting locations - relay carriers, fuse carriers
The overview shows a left-hand drive vehicle as an example.

- Fuse holder A - SA-
- ⇒ Rep. gr. 97 ; Removing
and installing
fuse holder A [SA]
- Fuse holder B - SB-
- ⇒ Rep. gr. 97 ; Removing
and installing
fuse holder B [SB]
- Electronics box
- ⇒ Rep. gr. 97 ; Removing
and installing
electronics box
- Bracket for fuse holder C -
SC-
- ⇒ "2.6.2 Removing and
installing bracket for
fuse holder C [SC], lefthand
drive vehicles"
- ⇒ Rep. gr. 97 ; Removing
and installing
bracket for fuse holder
C [SC], right-hand
drive vehicles
- Fuse holder C - SC-
- ⇒ Rep. gr. 97 ; Removing
and installing
fuse holder C [SC]
Assembly overview- relay carriers, fuse holders, electronics boxes
Assembly overview - fuse holder A [SA]
![Volkswagen ID.4. Assembly overview - fuse holder A [SA]](images/manuals/353/volkswagen_id_4_assembly_overview_relay_carriers_fuse_holders_e_2610.webp)
- Cover
- Nut for positive jump start
terminal
- Positive cable
- Fuse holder A - SA-
- ⇒ Rep. gr. 97 ; Removing
and installing
fuse holder A [SA]
- Bracket for fuse holder A -
SA-
- Battery - A-
- ⇒ Rep. gr. 27 ; Removing
and installing
battery [A]
- Electrical wire
- See current flow diagram
for pin assignment
- Nut
- Nut
Assembly overview - fuse holder B [SB]
![Volkswagen ID.4. Assembly overview - fuse holder B [SB]](images/manuals/353/volkswagen_id_4_assembly_overview_relay_carriers_fuse_holders_e_2611.webp)
- Cover for electronics box
- Fuse holder B - SB-
- ⇒ "2.5 Removing and
installing fuse holder B
[SB]"
- Nut
- Bolt
- Electronics box
- ⇒ Rep. gr. 97 ; Removing
and installing
electronics box
- Cover for electronics box
- Nut
- Protective cap
- Electrical wire
Removing and installing electronics box
Removing
- Remove fuse holder B - SB- , and lay it aside with electrical
wires connected ⇒ "2.5 Removing and installing fuse holder
B [SB]"
- Unscrew nut -2-.
- Unscrew bolts -1-.
- Remove electronics box -3-.

Installing
Install in reverse order of removal, observing the following:
Tightening torques
- ⇒ "2.2.2 Assembly overview - fuse holder B [SB]"
Removing and installing fuse holder A [SA]
Fuse holder A - SA- is referred to hereafter as fuse holder.
Removing
- Disconnect battery ⇒ Rep. gr. 27 ; Disconnecting and connecting
battery A .
Vehicles with vibration isolation strut
- Remove vibration isolation strut ⇒ General body repairs,
exterior; Rep. gr. 50 ; Lock carrier; Removing and installing
vibration isolation strut .
All vehicles (continued)
- Release locking devices -arrows-.
- Remove cover -1-.
NOTICE
Risk of interchanging pin assignment.
- Refer to the applicable current flow diagram to obtain information
on the exact pin assignment.
- Take photographs of the assignment.
- Mark wires -2-.
- Unscrew nuts of electrical wires -2-.
- Detach electrical wires -2-.
- Remove cable tie on bracket for fuse holder -3-.
- Unscrew nut of positive cable -4-.
- Remove positive wire -4-.
- Release retaining tabs in -direction of arrow-.
- Remove fuse holder with bracket -1-.
- Release locking devices -1-.
- Remove fuse holder -3- in direction of -arrow- from bracket
-2-.
![Volkswagen ID.4. Removing and installing fuse holder A [SA]](images/manuals/353/volkswagen_id_4_removing_and_installing_fuse_holder_a_sa__2613.webp)
Installing
Install in the reverse order of removal, observing the following:
Tightening torques
- ⇒ Rep. gr. 97 ; Assembly overview - fuse holder A [SA]
Removing and installing fuse holder B [SB]
Fuse holder B - SB- is referred to hereafter as fuse holder.
Removing
- Disconnect battery ⇒ Rep. gr. 27 ; Disconnecting and connecting
battery A .
- Release locking devices -arrow-.
- Remove cover for electronics box -1-.
![Volkswagen ID.4. Removing and installing fuse holder B [SB]](images/manuals/353/volkswagen_id_4_removing_and_installing_fuse_holder_b_sb__2614.webp)
- Pull off cover for electronics box -1- in direction of -arrow-.
![Volkswagen ID.4. Removing and installing fuse holder B [SB]](images/manuals/353/volkswagen_id_4_removing_and_installing_fuse_holder_b_sb__2615.webp)
- Release fasteners -2- in direction of -arrow A-.
- Remove fuse holder -1-.
![Volkswagen ID.4. Removing and installing fuse holder B [SB]](images/manuals/353/volkswagen_id_4_removing_and_installing_fuse_holder_b_sb__2616.webp)
- Remove protective cap -2- in direction of -arrow-.
- Unscrew nut of electrical wire -1-.
- Detach electrical wire -1-.
![Volkswagen ID.4. Removing and installing fuse holder B [SB]](images/manuals/353/volkswagen_id_4_removing_and_installing_fuse_holder_b_sb__2617.webp)
NOTICE
Risk of interchanging pin assignment.
- Refer to the applicable current flow diagram to obtain information
on the exact pin assignment.
- Take photographs of assignment of electrical wires and
fuses.
- Disconnect electrical wiring.
- Remove fuse holder
Installing
Install in the reverse order of removal, observing the following:
Tightening torques
- ⇒ "2.2.2 Assembly overview - fuse holder B [SB]"
Removing and installing fuse holder C [SC]
Removing and installing fuse holder C
[SC]
Fuse holder C - SC- is referred to hereafter as fuse holder
Removing
- Disconnect battery ⇒ Rep. gr. 27 ; Disconnecting and connecting
battery A .
Left-hand drive vehicles
- Remove dash panel trim on driver side ⇒ General body repairs,
interior; Rep. gr. 68 ; Compartments/covers; Removing
and installing dash panel trim on driver side; Removing
and installing dash panel trim on driver side, left-hand drive
vehicles .
All vehicles (continued)
Right-hand drive vehicles
- Remove glove compartment cover ⇒ General body repairs,
interior; Rep. gr. 68 ; Compartments/covers; Removing and
installing glove compartment cover; Removing and installing
glove compartment cover .
All vehicles (continued)
- Release locking devices -2- in direction of -arrow A-.
- Remove fuse holder -1-.
NOTICE
Risk of interchanging pin assignment.
- Refer to the applicable current flow diagram to obtain information
on the exact pin assignment.
- Take photographs of assignment of electrical wires and
fuses.
- Disconnect electrical wiring.
- Remove fuse holder.
Installing
Install in reverse order of removal.
Removing and installing bracket for fuse holder C [SC], left-hand drive
vehicles
Fuse holder C - SC- is referred to hereafter as fuse holder.
Removing
- Remove fuse holder, and lay it aside with lines connected
⇒ Rep. gr. 97 ; Removing and installing fuse holder C
[SC] .
- Cut through cable tie on bracket for fuse holder -2-.
- Release retaining hooks -1-.
- Remove bracket for fuse holder -2- in direction of -arrow A-.
![Volkswagen ID.4. Removing and installing bracket for fuse holder C [SC], left-hand drive vehicles](images/manuals/353/volkswagen_id_4_removing_and_installing_fuse_holder_c_sc__2618.webp)
Installing
Install in reverse order of removal.
Removing and installing bracket for fuse holder C [SC], right-hand drive
vehicles
Fuse holder - SC- is referred to hereafter as fuse holder.
Removing
- Remove fuse holder C, and lay it aside with lines connected
⇒ Rep. gr. 97 ; Removing and installing fuse holder C
[SC] .
- Cut through cable tie on bracket for fuse holder -2-.
- Release locking devices -1-.
- Remove bracket for fuse holder -2- in direction of -arrow A-.
Installing
Install in reverse order of removal.