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Removing and installing subwoofer in rear shelf R157, high-voltage vehicles — AUDI

Removing and installing subwoofer in rear shelf R157, high-voltage vehicles on Audi: factory workshop procedure. Full factory text, tools and checks.

Workshop procedure for AUDI — the factory write-up, straight from real workshop data.

factory workshop text

📋 Procedure

Removing and installing
subwoofer in rear shelf
R157
, high-voltage vehicles
Subwoofer in rear shelf
R157
is located in spare wheel well.
It is not necessary to de-energise the vehicle.
Switch off ignition and all electrical equipment and remove ignition key.
WARNING
Safety hazard: the engine can start unexpectedly.
Before carrying out general work on a vehicle with high-voltage electrical system, switch off the ignition and remove the ignition key from the vehicle.
DANGER!
Risk of fatal injury if high-voltage components are damaged.
Observe the following when working in the vicinity of high-voltage components or wiring:
It is not permitted to use cutting or forming tools, other sharp-edged tools or heat sources such as welding, brazing, soldering, hot air or thermal bonding equipment.
Before starting work, visually inspect the high-voltage components in the areas involved.
Before working in engine compartment, visually inspect
power and control electronics for electric drive
JX1
,
electric drive motor
V141
,
air conditioner compressor
V470
and high-voltage wiring.
Before working on the vehicle underbody, visually inspect the high-voltage wiring and covers.
Before working on the rear section of the vehicle, visually inspect the high-voltage wiring and the electro-box with the
maintenance connector for high-voltage system
TW
.
Visually inspect all potential equalisation lines.
Check the following when making the visual inspection:
There must be no external damage on any component.
The insulation of the high-voltage wiring and potential equalisation lines must not be damaged.
There must be no unusual deformation of the high-voltage wiring.
All high-voltage components must be identified by a red warning sticker.
Removing
Remove luggage compartment floor (rear)
General body repairs, interior
Rep. gr.
70
Luggage compartment trim panels; Removing and installing luggage compartment floor
.
Move battery cooling module for
drive battery
A2
to service position
Heating, air conditioning
Rep. gr.
87
Battery cooling module
.
Remove rear cross panel trim
General body repairs, interior
Rep. gr.
70
Luggage compartment trim panels; Removing and installing lock carrier trim
.
Unplug connector
3
at
subwoofer in rear shelf
R157
1
.
Remove bolts
2
at
subwoofer in rear shelf
R157
1
.
Take
subwoofer in rear shelf
R157
1
out of spare wheel well together with bracket.
Unscrew bolts
3
at bracket
2
and remove bracket
2
from
subwoofer in rear shelf
R157
1
.
Installing
Installation is performed in reverse sequence.
For tightening torques and other fitting notes see overview of fitting locations
Chapter
.

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Workshop data on this page last updated 20 Sep 2026.